Title:
LASER BEAM COMBINING DEVICE WITH AN UNSTABLE RESONATOR CAVITY
Document Type and Number:
WIPO Patent Application WO/2020/052515
Kind Code:
A1
Abstract:
A laser beam combining device with an unstable resonator cavity includes a semiconductor laser source(1) configured to emit a plurality of laser beams to a beam shaper(2) to form a plurality of parallel laser beams and the parallel laser beams are focused, by a transform lens(3), to a diffraction grating(4), wherein the diffraction grating diffracts the focused laser beams to form a combined laser beam, wherein the transform lens is disposed between the semiconductor laser source and the diffraction grating and an output coupler(5) including a cylindrical surface(51) with partial reflection coating, wherein a portion of the combined laser beams is oscillated between the cylindrical surface and the back facet(12) of the semiconductor laser, and the portion of the combined laser beams is emitted via the output coupler.
Inventors:
ZHOU QUAN (CN)
LI DASHAN (CN)
ZHAO YAPING (CN)
YE PINGPING (CN)
LI DASHAN (CN)
ZHAO YAPING (CN)
YE PINGPING (CN)
Application Number:
PCT/CN2019/104900
Publication Date:
March 19, 2020
Filing Date:
September 09, 2019
Export Citation:
Assignee:
II VI SUWTECH INC (CN)
International Classes:
G02B27/10; H01S5/14; H01S3/08
Foreign References:
| CN107946898A | 2018-04-20 | |||
| US4426707A | 1984-01-17 | |||
| CN102868088A | 2013-01-09 | |||
| US20050018740A1 | 2005-01-27 | |||
| CN208753726U | 2019-04-16 |
Attorney, Agent or Firm:
SHANGHAI LUNGTIN LAW FIRM (CN)
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