Goods & Services

Laser cutting torches; Three dimensional (3D) printers; 3D printers; Milling machines; Glass-working machines; Machinery for working glass; Machines for processing glass; Machines for glass working; Machinery for shaping glass; Machines for shaping glass; Robotic mechanisms for working glass. Lasers; Laser printer controllers; Lasers for industrial use; Lasers for scientific use; Lasers for non-medical purposes. Laser engraving; Laser scribing; Laser scribing services; Custom manufacture by direct metal laser sintering; 3D printing; Three-dimensional printing [3DP]; Custom 3D printing for others; Cutting of sheet glass; Treatment of glass to alter the optical properties.

Abstract

2 laser comprises an unstable laser cavity in the form of a first optical resonator having a semi-transparent output coupler (3), a laser medium (2) in the unstable laser cavity, and means (1) for exciting the laser medium (2). A part of the laser beam propagating beyond the light aperture of the output coupler (3) is directed to a second resonator, the second resonator comprising at least one focusing member (6), and the optical length of the second resonator being equal or multiple to the optical length of the first optical resonator. The part of the laser beam passing through the focal plane of the focusing member (6) is modulated by using a Q-switching device (8) in a manner that the excitation of the laser medium is in synchrony with the operation of the Q-switching device (8).

IPC Classes  ?

• H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
• H01S 3/104 - 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 in gas lasers
• H01S 3/121 - Q-switching using intracavity mechanical devices
• H01S 3/223 - Gases the active gas being polyatomic, i.e. containing two or more atoms
• H01S 3/08 - Construction or shape of optical resonators or components thereof
• H01S 3/097 - Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser

Abstract

The present disclosure discloses a CO2 laser and a method for the CO2 laser. The CO2 laser comprises an unstable laser cavity in the form of a first optical resonator having a semi-transparent output coupler (3), a laser medium (2) in the unstable laser cavity, and means (1) for exciting the laser medium (2). A part of the laser beam propagating beyond the light aperture of the output coupler (3) is directed to a second resonator, the second resonator comprising at least one focusing member (6), and the optical length of the second resonator being equal or multiple to the optical length of the first optical resonator. The part of the laser beam passing through the focal plane of the focusing member (6) is modulated by using a Q-switching device (8) in a manner that the excitation of the laser medium is in synchrony with the operation of the Q-switching device (8).

IPC Classes  ?

• H01S 3/082 - Construction or shape of optical resonators or components thereof comprising three or more reflectors defining a plurality of resonators, e.g. for mode selection or suppression
• H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
• H01S 3/11 - Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
• H01S 3/223 - Gases the active gas being polyatomic, i.e. containing two or more atoms
• H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range