Abstract

An optical rotator comprises an optical fiber head (203, 303, 403), a reflector (201, 301, 401), and an optical rotation plate (202, 302, 402) provided between the optical fiber head (203, 303, 403) and the reflector (201, 301, 401). The reflector (201, 301, 401) is a concave reflector. The optical rotator has the characteristics of low cost, high coupling efficiency and low loss.

IPC Classes  ?

• G02B 27/28 - Optical systems or apparatus not provided for by any of the groups , for polarising
• G02F 1/095 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure
• G02F 1/225 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour by interference in an optical waveguide structure
• G02B 5/30 - Polarising elements
• G02B 6/27 - Optical coupling means with polarisation selective and adjusting means
• H01P 1/175 - Auxiliary devices for rotating the plane of polarisation using Faraday rotators