Amplitude Systemes

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IPC Class
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range 15
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media 13
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating 8
G02F 1/35 - Non-linear optics 6
H01S 3/067 - Fibre lasers 5
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Status
Pending 1
Registered / In Force 27
Found results for  patents

1.

SYSTEM AND METHOD FOR COMPRESSING SHORT OR ULTRA-SHORT LIGHT PULSES, AND ASSOCIATED LIGHT-PULSED LASER SYSTEM

      
Application Number 17284397
Status Pending
Filing Date 2019-10-09
First Publication Date 2021-10-28
Owner
  • AMPLITUDE SYSTEMES (France)
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
Inventor
  • Zaouter, Yoann
  • Guichard, Florent
  • Lavenu, Loïc
  • Hanna, Marc

Abstract

Disclosed is a system for compressing short or ultra-short light pulses emitted by a light source. The compression system includes:—a first non-linear light pulse compression module including a multi-pass cell, the multi-pass cell including a first non-linear optical medium; and—a second non-linear light pulse compression module including a capillary filled with a gaseous second non-linear optical medium, and a compressor arranged at the output of the capillary, the first non-linear compression module and the second non-linear compression module being arranged in series on the path of a source light beam of source light pulses. Also disclosed is a light-pulses laser system and to a method for compressing short or ultra-short light pulses.

IPC Classes  ?

  • G02F 1/35 - Non-linear optics
  • H01S 3/11 - Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping

2.

OPTICAL COMPONENT MOUNT AND ASSOCIATED SYSTEM FOR CONTROLLING A LIGHT BEAM

      
Application Number EP2020064158
Publication Number 2020/234402
Status In Force
Filing Date 2020-05-20
Publication Date 2020-11-26
Owner AMPLITUDE SYSTEMES (France)
Inventor
  • Baratange, François
  • Tropheme, Benoît

Abstract

An optical component mount (100) comprises a fixed portion (110) and a movable portion (120), the mount (100) being configured to support at least one optical component, the fixed portion (110) and the movable portion (120) being mechanically connected to each other by a flexible articulation (115) which is capable of allowing the movable portion (120) to move relative to the fixed portion (110). According to the invention, the mount (100) comprises a cooling circuit (180) which is integrated into the fixed portion (110), the movable portion (120) and the articulation (115) and which is capable of allowing a fluid to flow inside the mount (110), the cooling circuit (180) comprising a fluid inlet hole (132) and a fluid outlet hole (134), the fluid inlet hole (132) and the fluid outlet hole (134) being arranged on the fixed portion (110).

IPC Classes  ?

  • G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements
  • G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
  • G02B 7/18 - Mountings, adjusting means, or light-tight connections, for optical elements for mirrors

3.

LASER SYSTEM WITH TEMPORAL OVERLAP OF PULSES

      
Application Number FR2020050185
Publication Number 2020/161433
Status In Force
Filing Date 2020-02-04
Publication Date 2020-08-13
Owner AMPLITUDE SYSTEMES (France)
Inventor
  • Delaigue, Martin
  • Honninger, Clemens
  • Audouard, Eric

Abstract

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IPC Classes  ?

  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media

4.

METHOD FOR DETERMINING THE OPERATIONAL CONDITIONS OF A METHOD FOR HIGH-REPETITION RATE FEMTOSECOND LASER ABLATION FOR A GIVEN MATERIAL AND METHOD FOR LASER WELDING BETWEEN PARTS OF A DETERMINED MATERIAL

      
Application Number FR2020050213
Publication Number 2020/161445
Status In Force
Filing Date 2020-02-06
Publication Date 2020-08-13
Owner
  • AMPLITUDE SYSTEMES (France)
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
  • UNIVERSITE DE BORDEAUX (France)
Inventor
  • Audouard, Eric
  • Bonamis, Guillaume
  • Mishchick, Konstantin
  • Honninger, Clemens
  • Lopez, John
  • Manek-Honninger, Inka
  • Mottay, Eric

Abstract

The invention proposes a method for determining the operational conditions of a method for high-repetition rate femtosecond laser ablation for a given material comprising a first step of determining a set of parameters of a burst of laser pulses adapted to generate an ablation crater in the material, the set of parameters comprising an intra-burst repetition frequency f between several hundred MHz and 100 GHz, a number N of pulses of the burst of laser pulses equal to a number Ne of heating and ablation pulses, with Ne being defined by the equation Nc = (L2charcharchar//Nc per pulse below an ablation threshold fluence Fsl of the material by a single laser pulse.

IPC Classes  ?

  • B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
  • B23K 26/0622 - Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
  • B23K 26/352 - Working by laser beam, e.g. welding, cutting or boring for surface treatment
  • B23K 26/362 - Laser etching
  • B23K 26/40 - Removing material taking account of the properties of the material involved
  • G01N 25/00 - Investigating or analysing materials by the use of thermal means

5.

SYSTEM AND METHOD FOR COMPRESSING SHORT OR ULTRA-SHORT LIGHT PULSES, AND ASSOCIATED LIGHT-PULSED LASER SYSTEM

      
Application Number FR2019052393
Publication Number 2020/074827
Status In Force
Filing Date 2019-10-09
Publication Date 2020-04-16
Owner
  • AMPLITUDE SYSTEMES (France)
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
Inventor
  • Zaouter, Yoann
  • Guichard, Florent
  • Lavenu, Loïc
  • Hanna, Marc

Abstract

The invention relates to a system for compressing short or ultra-short light pulses emitted by a light source. According to the invention, the compression system (4) comprises: - a first non-linear light pulse compression module (10) comprising a multi-pass cell (14), the multi-pass cell (14) comprising a first non-linear optical medium; and - a second non-linear light pulse compression module (20) comprising a capillary (24) filled with a gaseous second non-linear optical medium, and a compressor (28) arranged at the outlet of the capillary (24), the first non-linear compression module (10) and the second non-linear compression module (20) being arranged in series on the path of a source light beam (100) of source light pulses. The invention also relates to a light-pulsed laser system (1) and to a method for compressing short or ultra-short light pulses.

IPC Classes  ?

6.

LASER SYSTEM AND METHOD FOR GENERATING LASER PULSES WITH VERY HIGH REPETITION RATE

      
Application Number FR2019050051
Publication Number 2019/138192
Status In Force
Filing Date 2019-01-10
Publication Date 2019-07-18
Owner AMPLITUDE SYSTEMES (France)
Inventor
  • Honninger, Clemens
  • Audouard, Eric

Abstract

The invention relates to a system and a method for generating high-power laser pulses with very high repetition rate. According to the invention, the laser system includes an oscillator (1) capable of generating a source laser beam comprising a series of source pulses (100) with femtosecond or picosecond duration at a first repetition frequency (F1) no lower than 800 megahertz and an optical amplifier system (2) suitable for receiving and amplifying the series of source pulses (100) at a second repetition frequency (F2) that is equal to or a multiple of the first repetition frequency (F1), the multiple being a non-negative integer greater than or equal to two, so as to generate a series of laser pulses with very high repetition frequency.

IPC Classes  ?

  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media

7.

SYSTEM AND METHOD FOR GENERATING A SPATIALLY LOCALISED HIGH-INTENSITY LASER BEAM

      
Application Number FR2018052924
Publication Number 2019/097197
Status In Force
Filing Date 2018-11-20
Publication Date 2019-05-23
Owner
  • AMPLITUDE SYSTEMES (France)
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
Inventor
  • Zomer, Fabien
  • Favier, Pierre
  • Courjaud, Antoine

Abstract

The invention relates to a system for generating a spatially localised, high-intensity laser beam, comprising: a laser source (80) designed to generate a burst of N laser pulses with a duration of less than or equal to one picosecond, the N laser pulses having a first repetition frequency (f1) greater than or equal to 0.5 gigahertz; a resonant optical cavity (10) designed to receive and store the burst of N laser pulses, the resonant optical cavity (10) being designed to focus the burst of N laser pulses in an interaction region (25) of said resonant optical cavity (10); and a servo control system (13) designed to control the first repetition frequency (f1) relative to the return distance in the resonant optical cavity, such that the N pulses of the burst are superimposed temporally and spatially by constructive interferences in the interaction region (25) so as to form one giant ultra-short and high-energy pulse.

IPC Classes  ?

  • H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • H05G 2/00 - Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma
  • H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating

8.

Pulse laser system that is temporally variable in terms of rhythm and/or amplitude

      
Application Number 15767899
Grant Number 11108207
Status In Force
Filing Date 2016-10-19
First Publication Date 2018-10-25
Grant Date 2021-08-31
Owner AMPLITUDE SYSTEMES (France)
Inventor
  • Honninger, Clemens
  • Morin, Franck
  • Delaigue, Martin

Abstract

Disclosed is a laser system including a source, for generating a source signal, and an optical amplifier system. The laser system includes a pulse selection or variation device configured to select or vary the source signal so as to form a main signal composed of one or more light pulses. The main signal is temporally variable in terms of rhythm and/or amplitude. The laser system is configured to inject the main signal and a secondary signal into the optical amplifier system. The secondary signal is varied on the basis of the temporal variation in terms of rhythm and/or amplitude of the main signal so as to stabilize the power stored in the optical amplifier system in a time-dependent manner, and the laser system is configured to spatially separate the amplified main signal from the amplified secondary signal.

IPC Classes  ?

  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • H01S 3/08 - Construction or shape of optical resonators or components thereof
  • H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
  • H01S 3/101 - Lasers provided with means to change the location from which, or the direction in which, laser radiation is emitted
  • H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media

9.

Nonlinear optical system for generating or amplifying light pulses by N-wave mixing, including a fast modulating device

      
Application Number 15767769
Grant Number 10495944
Status In Force
Filing Date 2016-10-19
First Publication Date 2018-10-18
Grant Date 2019-12-03
Owner AMPLITUDE SYSTEMES (France)
Inventor
  • Morin, Franck
  • Honninger, Clemens
  • Delaigue, Martin

Abstract

Disclosed is a nonlinear optical system for generating or amplifying light pulses by N-wave mixing, including a nonlinear optical medium suitable for receiving at least one first light pulse and one second light pulse. The system includes a fast modulation device for modulating a time delay between the second light pulse and the first pulse light in the nonlinear optical medium, the time delay modulation device being placed upstream of the nonlinear optical medium, and the time delay modulation device being modulated at least between a first delay value and a second delay value, so as to modulate the generation or amplification of a light pulse by N-wave mixing of the at least one first light pulse et one second light pulse in the nonlinear optical medium.

IPC Classes  ?

  • G02F 1/35 - Non-linear optics
  • H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
  • H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
  • G02F 1/365 - Non-linear optics in an optical waveguide structure

10.

APPARATUS AND METHOD FOR CUTTING MATERIAL WITH A NON-DIFFRACTIVE ELONGATE LASER BEAM

      
Application Number FR2017052071
Publication Number 2018/020144
Status In Force
Filing Date 2017-07-25
Publication Date 2018-02-01
Owner
  • AMPLITUDE SYSTEMES (France)
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
  • UNIVERSITE DE BORDEAUX (France)
  • ALPHANOV INSTITUT D'OPTIQUE D'AQUITAINE (France)
Inventor
  • Mishchik, Konstantin
  • Lopez, John
  • Chassagne, Bruno

Abstract

The invention relates to an apparatus and method for cutting semiconductors or transparent dielectrics. According to the invention, the apparatus comprises: a laser source (1) that generates a laser beam (100) of pulses of femtosecond or picosecond duration; a Bessel-beam-generating optical device (74) configured to receive the laser beam and to spatially concentrate the laser beam into at least one zone on the optical axis (70) of the laser beam, said Bessel-beam-generating optical device (74) being configured to convert a Gaussian spatial intensity distribution of the laser beam into a Bessel spatial intensity distribution of the laser beam transversely to the optical axis in the focal zone; and a passive optical system (90) comprising a phase and/or amplitude mask configured to modify the Bessel spatial distribution of the laser beam transversely and/or longitudinally with respect to the optical axis in the zone.

IPC Classes  ?

  • B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
  • B23K 26/067 - Dividing the beam into multiple beams, e.g. multi-focusing
  • B23K 26/38 - Removing material by boring or cutting
  • B23K 26/066 - Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms by using masks
  • B23K 26/064 - Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
  • C03B 33/02 - Cutting or splitting sheet glass; Apparatus or machines therefor
  • C03B 33/09 - Severing cooled glass by thermal shock
  • G02B 5/00 - Optical elements other than lenses
  • B23K 26/0622 - Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
  • B23K 103/00 - Materials to be soldered, welded or cut

11.

METHOD AND APPLIANCE FOR CUTTING MATERIALS BY MULTI-BEAM FEMTOSECOND LASER

      
Application Number FR2017052072
Publication Number 2018/020145
Status In Force
Filing Date 2017-07-25
Publication Date 2018-02-01
Owner
  • AMPLITUDE SYSTEMES (France)
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
  • UNIVERSITE DE BORDEAUX (France)
  • ALPHANOV INSTITUT D'OPTIQUE D'AQUITAINE (France)
Inventor
  • Mishchik, Konstantin
  • Lopez, John
  • Kling, Rainer
  • Javaux-Leger, Clémentine
  • Duchateau, Guillaume
  • Dematteo-Caulier, Ophélie

Abstract

The invention relates to a method for cutting dielectric or semiconductive material with a laser. According to the invention, the method comprises the following steps: emission of a laser beam (100) comprising at least one burst of N femtosecond laser pulses; spatial separation of the laser beam (100) into a first split beam (101) having a first energy, and respectively, a second split beam (102) having a second energy; spatial concentration of energy of the first split beam (101) in a first zone (31) of the material, and respectively, of the second split beam (102) in a second zone (32) of the material, the first zone (31) and the second zone (32) being separate and staggered by a distance dx; and adjustment of the distance (dx) between the first zone (31) and the second zone (32) in such a way as to initiate a straight micro-fracture (45) oriented between the first zone (31) and the second zone (32).

IPC Classes  ?

  • B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
  • B23K 26/067 - Dividing the beam into multiple beams, e.g. multi-focusing
  • B23K 26/38 - Removing material by boring or cutting
  • B23K 26/066 - Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms by using masks
  • B23K 26/064 - Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
  • C03B 33/02 - Cutting or splitting sheet glass; Apparatus or machines therefor
  • C03B 33/09 - Severing cooled glass by thermal shock
  • B23K 26/0622 - Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
  • B23K 103/00 - Materials to be soldered, welded or cut

12.

UV-visible laser system having ultrashort highpower and/or high-energy pulses

      
Application Number 15322737
Grant Number 10020632
Status In Force
Filing Date 2015-07-03
First Publication Date 2017-05-18
Grant Date 2018-07-10
Owner AMPLITUDE SYSTEMES (France)
Inventor Courjaud, Antoine

Abstract

Disclosed is a UV-visible laser system having ultrashort pulses with high power and/or high energy. The laser system includes at least one non-linear optical crystal (1) adapted for receiving two distinct ultrashort laser pulses (31, 32) in the visible or infrared domain emitted respectively by two distinct laser pulse sources (11, 12) and a temporal synchronization unit (41, 42) adapted so that the two ultrashort laser pulses (31, 32) are superimposed in time and space in the non-linear optical crystal (1) with any phase shift, and generate, by sum frequency, an ultrashort laser pulse (131) having an optical frequency equal to the sum of the respective optical frequencies of the two distinct laser pulses (31, 32).

IPC Classes  ?

  • G02F 1/35 - Non-linear optics
  • G02F 2/02 - Frequency-changing of light, e.g. by quantum counters
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
  • H01S 3/067 - Fibre lasers
  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • B23K 26/0622 - Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
  • B23K 26/06 - Shaping the laser beam, e.g. by masks or multi-focusing
  • H01S 3/16 - Solid materials

13.

NONLINEAR OPTICAL SYSTEM FOR GENERATING OR AMPLIFYING LIGHT PULSES BY N-WAVE MIXING, INCLUDING A FAST MODULATING DEVICE

      
Application Number FR2016052698
Publication Number 2017/068281
Status In Force
Filing Date 2016-10-19
Publication Date 2017-04-27
Owner AMPLITUDE SYSTEMES (France)
Inventor
  • Morin, Franck
  • Honninger, Clemens
  • Delaigue, Martin

Abstract

The invention relates to a nonlinear optical system for generating or amplifying light pulses by N-wave mixing, including a nonlinear optical medium (20) suitable for receiving at least one first light pulse (51) and one second light pulse (52, 522). According to the invention, the system includes a fast modulating device (40) for modulating a time delay between the second light pulse (52) and the first light pulse (51) in the nonlinear optical medium (20), the device (40, 41, 42) for modulating time delay being placed upstream of the nonlinear optical medium (20), and the device (40, 41, 42) for modulating time delay being modulatable at least between a first delay value (R1) and a second delay value (R2), so as to modulate the generation or amplification of a light pulse (60) by N-wave mixing of said at least one first light pulse (51) and one second light pulse in the nonlinear optical medium (20).

IPC Classes  ?

14.

PULSE LASER SYSTEM THAT IS TEMPORALLY VARIABLE IN TERMS OF RHYTHM AND/OR AMPLITUDE

      
Application Number FR2016052699
Publication Number 2017/068282
Status In Force
Filing Date 2016-10-19
Publication Date 2017-04-27
Owner AMPLITUDE SYSTEMES (France)
Inventor
  • Honninger, Clemens
  • Morin, Franck
  • Delaigue, Martin

Abstract

The invention relates to a laser system including a source (10), for generating a source signal (100), and an optical amplifier system (30, 31, 32, 33). According to the invention, the laser system comprises a pulse selection or variation device (20) configured to select or vary the source signal (100) so as to form a main signal (120) composed of one or more light pulses. The main signal (120) is temporally variable in terms of rhythm and/or amplitude. The laser system is configured to inject the main signal (110) and a secondary signal (120) into said optical amplifier system (30). The secondary signal (120) is varied on the basis of the temporal variation in terms of rhythm and/or amplitude of said main signal (110) so as to stabilize the power stored in the optical amplifier system (30) in a time-dependent manner, and the laser system is configured to spatially separate the amplified main signal (310) from the amplified secondary signal (320).

IPC Classes  ?

  • H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
  • H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • H01S 3/08 - Construction or shape of optical resonators or components thereof
  • H01S 3/101 - Lasers provided with means to change the location from which, or the direction in which, laser radiation is emitted

15.

System and method for generating a burst of ultra-short, high-power laser pulses

      
Application Number 14649752
Grant Number 09525264
Status In Force
Filing Date 2013-12-04
First Publication Date 2016-03-03
Grant Date 2016-12-20
Owner AMPLITUDE SYSTEMES (France)
Inventor Courjaud, Antoine

Abstract

A system and method for generating a burst of ultra-short, high-power laser pulses, the system includes elements for generating laser pulses having a repetition period τ1, amplification elements including an optical amplifier medium, a regenerative optical cavity, elements for injecting the laser pulses into the regenerative optical cavity, and elements for extracting the laser pulses from the regenerative optical cavity. The regenerative optical cavity has a total length such that the duration of a round trip of each pulse is between N−1 and N times the period τ1, wherein N is an integer higher than or equal to 2, the injection elements are adapted for trapping a burst of N laser pulses in the regenerative optical cavity, the extraction elements are suitable to extract the burst of N laser pulses from the regenerative optical cavity, and the optical amplifier medium is suitable for forming a burst of amplified laser pulses.

IPC Classes  ?

  • H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
  • H01S 3/107 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using electro-optic devices, e.g. exhibiting Pockels or Kerr effect
  • H01S 3/11 - Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
  • H01S 3/06 - Construction or shape of active medium

16.

UV-VISIBLE LASER SYSTEM HAVING ULTRASHORT HIGH-POWER AND/OR HIGH-ENERGY PULSES

      
Application Number FR2015051847
Publication Number 2016/001604
Status In Force
Filing Date 2015-07-03
Publication Date 2016-01-07
Owner AMPLITUDE SYSTEMES (France)
Inventor Courjaud, Antoine

Abstract

The present invention relates to a UV-visible laser system having ultrashort high-power and/or high-energy pulses. According to the invention, the laser system includes at least one non-linear optical crystal (1) suitable for receiving two separate ultrashort laser pulses (31, 32) in the visible or infrared domain, respectively emitted by two separate sources of laser pulses (11, 12), and time-synchronisation means (41, 42) adapted such that said two ultrashort laser pulses (31, 32) overlap in time and space in said non-linear optical crystal (1) with a given phase shift, and generate, by sum frequency, an ultrashort laser pulse (131) having an optical frequency equal to the sum of the respective optical frequencies of the two separate laser pulses (31, 32).

IPC Classes  ?

  • H01S 3/067 - Fibre lasers
  • H01S 5/00 - Semiconductor lasers
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • G02F 1/35 - Non-linear optics
  • B23K 26/06 - Shaping the laser beam, e.g. by masks or multi-focusing
  • H01S 3/16 - Solid materials

17.

System and method for the optical amplification of ultrashort light pulses beyond the limit of the spectral gain band

      
Application Number 14391823
Grant Number 09362702
Status In Force
Filing Date 2013-04-12
First Publication Date 2015-11-12
Grant Date 2016-06-07
Owner AMPLITUDE SYSTÈMES (France)
Inventor
  • Delaigue, Martin
  • Honninger, Clemens
  • Mottay, Eric

Abstract

3, which is shorter than the duration τ=1/Δν of the bandwidth limitation of the optical amplifier.

IPC Classes  ?

  • H01S 3/11 - Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
  • H01S 3/16 - Solid materials
  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range

18.

SYSTEM AND METHOD FOR GENERATING A BURST OF ULTRA-SHORT, HIGH-POWER LASER PULSES

      
Application Number FR2013052947
Publication Number 2014/087104
Status In Force
Filing Date 2013-12-04
Publication Date 2014-06-12
Owner AMPLITUDE SYSTEMES (France)
Inventor Courjaud, Antoine

Abstract

The invention relates to a system and method for generating a burst of ultra-short, high-power laser pulses which includes means (1) for generating laser pulses (10) having a repetition period t1, amplification means (2) including an optical amplifier medium (41), a regenerative optical cavity, means for injecting said laser pulses (10) into said regenerative optical cavity, and means for extracting said laser pulses from said regenerative optical cavity. According to the invention, the regenerative optical cavity has a total length such that the duration of a return trip of each pulse is between N-1 and N times the period t1, wherein N is an integer no lower than two, said injection means are adapted for trapping a burst of N laser pulses in said regenerative optical cavity, said extraction means are suitable for extracting said burst of N laser pulses from said regenerative optical cavity, and said optical amplifier medium (41) is suitable for forming a burst of amplified laser pulses (20).

IPC Classes  ?

  • H01S 3/08 - Construction or shape of optical resonators or components thereof
  • H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range

19.

Device and passive method for the coherent combination of two amplified and/or spectrally broadened optical beams

      
Application Number 14232314
Grant Number 09240669
Status In Force
Filing Date 2012-07-11
First Publication Date 2014-06-05
Grant Date 2016-01-19
Owner
  • ECOLE POLYTECHNIQUE (France)
  • AMPLITUDE SYSTEMES (France)
Inventor
  • Papadopoulos, Dimitris
  • Hanna, Marc
  • Daniault, Louis
  • Zaouter, Yoann
  • Druon, Frederic

Abstract

2″), so as to form a coherent output beam.

IPC Classes  ?

  • H01S 3/067 - Fibre lasers
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating

20.

SYSTEM AND METHOD FOR THE OPTICAL AMPLIFICATION OF ULTRASHORT LIGHT PULSES BEYOND THE LIMIT OF THE SPECTRAL GAIN BAND

      
Application Number FR2013050807
Publication Number 2013/153344
Status In Force
Filing Date 2013-04-12
Publication Date 2013-10-17
Owner AMPLITUDES SYSTEMES (France)
Inventor
  • Delaigue, Martin
  • Honninger, Clemens
  • Mottay, Eric

Abstract

The invention relates to a system for the optical amplification of high-energy ultrashort light pulses, said system comprising: an oscillator that can emit light pulses of duration t0 subpicosecond, a pre-compensator, and a solid optical amplifier that can amplify the chirped light pulses. According to the invention, the pre-compensator has a negative group velocity dispersion, said pre-compensator being capable of generating negatively chirped light pulses, and the optical amplifier has a positive group velocity dispersion, said optical amplifier being disposed such as to receive and amplify the negatively chirped light pulses. The optical amplifier is configured such that the light pulses can induce a widening of the spectral gain band ∆v by means of self-phase modulation, such as to generate amplified, time-compressed light pulses of duration t3 which is shorter than the duration t=1/∆n of the bandwidth limitation of the optical amplifier.

IPC Classes  ?

  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media

21.

Optical amplifier and laser incorporating such an amplifier

      
Application Number 13816551
Grant Number 08995488
Status In Force
Filing Date 2011-08-16
First Publication Date 2013-06-06
Grant Date 2015-03-31
Owner Amplitude Systemes (France)
Inventor
  • Courjaud, Antoine
  • Ricaud, Sandrine Anne
  • Druon, Frederic Pierre Henri Jacques
  • Doualan, Jean-Louis
  • Camy, Patrice Jean-Pierre

Abstract

−1 (approximately 20 nm, when expressed in wavelength). A laser including a resonant optical cavity and an amplifier are also described.

IPC Classes  ?

  • H01S 3/16 - Solid materials
  • H01S 3/08 - Construction or shape of optical resonators or components thereof
  • H01S 3/042 - Arrangements for thermal management for solid state lasers
  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • H01S 3/02 - Constructional details
  • H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
  • H01S 3/0941 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a semiconductor laser, e.g. of a laser diode
  • H01S 3/102 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation

22.

DEVICE AND PASSIVE METHOD FOR THE COHERENT COMBINATION OF TWO AMPLIFIED AND/OR SPECTRALLY BROADENED OPTICAL BEAMS

      
Application Number FR2012051644
Publication Number 2013/007954
Status In Force
Filing Date 2012-07-11
Publication Date 2013-01-17
Owner
  • ECOLE POLYTECHNIQUE (France)
  • AMPLITUDE SYSTEMES (France)
Inventor
  • Papadopoulos, Dimitris
  • Hanna, Marc
  • Daniault, Louis
  • Zaouter, Yoann
  • Druon, Frédéric

Abstract

The present invention relates to a method and a passive device for the coherent combination of two amplified and/or spectrally broadened optical beams using at least one bidirectional optical component (A1, A2). According to the invention, the device comprises an amplitude division ring interferometer comprising optical splitting and recombining means disposed in such a way as to receive an incident optical beam (S0) and to split it spatially into a first secondary input beam (H1) and a second secondary input beam (H2), optical guiding means disposed in such a way as to define an optical path in the form of a ring in said interferometer, the at least one bidirectional optical component (A1, A2) being disposed on the optical path of said ring interferometer, said splitting and recombining means being disposed in such a way as to receive and to recombine spatially, temporally and coherently said first secondary output beam (H1") and said second secondary output beam (H2"), so as to form a coherent output beam.

IPC Classes  ?

  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • H01S 3/067 - Fibre lasers

23.

OPTICAL AMPLIFIER AND LASER INCORPORATING SUCH AN AMPLIFIER

      
Application Number FR2011051921
Publication Number 2012/022915
Status In Force
Filing Date 2011-08-16
Publication Date 2012-02-23
Owner AMPLITUDE SYSTEMES (France)
Inventor
  • Courjaud, Antoine
  • Ricaud, Sandrine, Anne
  • Druon, Frédéric, Pierre, Henri, Jacques
  • Doualan, Jean-Louis
  • Camy, Patrice, Jean-Pierre

Abstract

The present invention relates to a high-gain optical amplifier for a wave to be amplified to a wavelength referred to as the emission wavelength. The optical amplifier includes: optical pumping means (4) producing a pump wave at a wavelength referred to as the pump wavelength; a solid amplifying medium (1) that is doped with active ions, said solid amplifying medium (1) being capable of emitting laser radiation at the emission wavelength when the medium is pumped by the aforementioned pumping means; cooling means (2) capable of cooling the solid amplifying medium (1) to a temperature of no higher than 250 Kelvin; and optical multiplexing means capable of coupling together the pump wave and the wave to be amplified in the amplifying medium. According to the invention, the amplifying medium has Stark sublevels contained within a spectral range of less than 200 cm-1 (approximately 20 nm when expressed as wavelength). The invention also relates to a laser comprising a resonant optical cavity and to an amplifier.

IPC Classes  ?

  • H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
  • H01S 3/16 - Solid materials
  • H01S 3/042 - Arrangements for thermal management for solid state lasers
  • H01S 3/0941 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a semiconductor laser, e.g. of a laser diode
  • H01S 3/08 - Construction or shape of optical resonators or components thereof

24.

Fiber chirped pulse amplifier with nonlinear compensation

      
Application Number 12812762
Grant Number 08582200
Status In Force
Filing Date 2009-01-15
First Publication Date 2010-12-09
Grant Date 2013-11-12
Owner Amplitude Systemes (France)
Inventor
  • Zaouter, Yoann
  • Mottay, Eric

Abstract

0 through the chirped pulse amplifier.

IPC Classes  ?

  • H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media

25.

Ultra-short high-power light pulse source

      
Application Number 12664754
Grant Number 08310749
Status In Force
Filing Date 2008-06-13
First Publication Date 2010-07-29
Grant Date 2012-11-13
Owner
  • Amplitude Systemes (France)
  • Institut d'Optique Graduate School (France)
  • Centre National de la Recherche Scientifique (France)
Inventor
  • Mottay, Eric
  • Georges, Patrick
  • Zaouter, Yoann
  • Hanna, Marc
  • Papadopoulos, Dimitris
  • Druon, Frederic
  • Cormier, Eric

Abstract

L such that the spectral phases generated by the wave guide (6) are opposed or quasi opposed to the predetermined spectral phases generated by the compressor (8) in order to generate compressed ultra-short light pulses (9) at the output of the compressor (8) with a planar or quasi planar spectral phase.

IPC Classes  ?

  • H04B 10/17 - in which processing or amplification is carried out without conversion of the signal from optical form
  • H01S 3/102 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation

26.

FREQUENCY-DRIFT FIBRE AMPLIFIER WITH NONLINEAR COMPENSATION

      
Application Number FR2009050056
Publication Number 2009/092967
Status In Force
Filing Date 2009-01-15
Publication Date 2009-07-30
Owner AMPLITUDE SYSTEMES (France)
Inventor
  • Zaouter, Yoann
  • Mottay, Eric

Abstract

The invention relates to a frequency-drift fibre amplifier (1) with nonlinear compensation, that comprises means (5) for generating a light pulse (10) having an initial power P0 and an initial duration T, a stretcher (2) including at least one optical diffraction network (7) having a line density higher than 1200 lines/mm and capable of time-stretching the pulse (10) and of inserting a time asymmetry in the stretched pulse (12), an amplification fibre (3) including a doped optical fibre section coupled with an optical pumping means (4) and capable of amplifying the stretched pulse (12) for producing a pulse having a power P, a compressor (6) with an optical diffraction network (8) capable of time-compressing the amplified pulse (14) so that the stretcher (2) and the compressor (6) are misaligned, the misalignment between the stretcher and the compressor being capable of simultaneously compensating second- and third-order nonlinear scattering in the amplification optical fibre (3) during the propagation of the pulse having an initial power P0 through the frequency-drift amplifier.

IPC Classes  ?

  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • H01S 3/067 - Fibre lasers

27.

ULTRA-SHORT HIGH-POWER LIGHT PULSE SOURCE

      
Application Number FR2008051065
Publication Number 2009/004232
Status In Force
Filing Date 2008-06-13
Publication Date 2009-01-08
Owner
  • AMPLITUDE SYSTEMES (France)
  • INSTITUT D'OPTIQUE GRADUATE SCHOOL (France)
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
Inventor
  • Mottay, Eric
  • Georges, Patrick
  • Zaouter, Yoann
  • Hanna, Marc
  • Papadopoulos, Dimitris
  • Druon, Frédéric
  • Cormier, Eric

Abstract

The invention relates to an ultra-short high-power light pulse source including a first laser pump source (1), a mode-locking laser oscillator (2) a second laser pump source (4), a wave guide (6) capable of inserting spectral phases into the light pulses, and a compressor (8) capable of generating predetermined spectral phases into the light pulses. According to the invention, the wave guide (6) comprises a means capable of compensating the predetermined spectral phases generated at least by the compressor (8), the second laser pump source (4) being capable of delivering a second pump light flow (5) having a power PL such that the spectral phases generated by the wave guide (6) are opposed or quasi opposed to the predetermined spectral phases generated by the compressor (8) in order to generate compressed ultra-short light pulses (9) at the output of the compressor (8) with a planar or quasi planar spectral phase.

IPC Classes  ?

  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range

28.

ULTRA-SHORT LASER SOURCE WITH RARE EARTH IONS AND STABLE PULSE TRAIN AND DEVICE FOR LENGTHENING A LASER CAVITY

      
Document Number 02554470
Status In Force
Filing Date 2005-01-25
Open to Public Date 2005-08-18
Grant Date 2014-04-08
Owner
  • AMPLITUDE SYSTEMES (France)
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.) (France)
  • UNIVERSITE DE BORDEAUX 1 (France)
Inventor
  • Honninger, Clemens
  • Courjaud, Antoine
  • Mottay, Eric
  • Salin, Francois

Abstract

The invention relates to an ultra-short laser source with rare earth ions, comprising a resonant cavity (1) having a first partially-reflective output face (2) and a second reflective face (3). The inventive source also comprises a first active material (4) which receives a pump light flux (6) that is emitted by a first solid laser pump source (7). According to the invention, the optical path length of the resonant cavity (1), which is travelled by the aforementioned pulses, is greater than 7.5 m, such that the energy E¿L? per pulse is greater than 100 nJ, said optical path comprising at least one passage in the active material (4). In addition, the ultra-short laser source comprises means for lengthening the resonant cavity (1), which can be used to extend the optical path length travelled by the light pulses in the resonant cavity (1) of a compact laser source. Moreover, the propagation matrix ABCD of the resonant cavity (1) is similar to the unit matrix, such that the characteristics of the light beam travelling to and fro in the resonant cavity (1) are unchanged.

IPC Classes  ?

  • H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude