Title:
MULTI-MODE LASER APPARATUS, LIGHT AMPLIFIER, AND LIGHT TRANSMITTING MODULE
Document Type and Number:
WIPO Patent Application WO/2023/217120
Kind Code:
A1
Abstract:
Provided in the present application is a multi-mode laser apparatus, which is applied in the field of optics. The multi-mode laser apparatus comprises a multi-mode laser device, a mode scrambler, a mode demultiplexer and Y Bragg gratings, wherein the multi-mode laser device is used for generating lasers comprising a plurality of modes; the mode scrambler is used for equalizing powers of lasers of different modes among the lasers of the plurality of modes, and outputting equalized lasers; the mode demultiplexer is used for decomposing the equalized lasers into M paths of lasers of different modes; X ports of the mode demultiplexer are used for outputting X paths of lasers; Y ports of the mode demultiplexer are used for outputting Y paths of lasers; the Y Bragg gratings are used for reflecting the Y paths of lasers; and the mode scrambler is further used for obtaining excited lasers according to the Y paths of reflected lasers. In the present application, each path of laser is a few-mode laser or a single-mode laser. Therefore, the present application can realize wavelength locking and spectral bandwidth control of a multi-mode laser by means of Bragg gratings.
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Inventors:
LIU PEI (CN)
ZHANG KAI (CN)
WU BO (CN)
ZHANG KAI (CN)
WU BO (CN)
Application Number:
PCT/CN2023/092946
Publication Date:
November 16, 2023
Filing Date:
May 09, 2023
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H01S5/065; H01S3/09
Foreign References:
| CN103701024A | 2014-04-02 | |||
| CN114080738A | 2022-02-22 | |||
| CN1328729A | 2001-12-26 | |||
| CN207217993U | 2018-04-10 | |||
| JP2021163814A | 2021-10-11 | |||
| US20060013527A1 | 2006-01-19 | |||
| US20150207296A1 | 2015-07-23 | |||
| CN107069425A | 2017-08-18 |
Other References:
SUN, MINGXING: "Wavelength Switchable Erbium-Doped Fiber Laser Based on All Fiber Taper Filter Structure", GUANG TONGXIN JISHU - OPTICAL COMMUNICATIONS TECHNOLOGY, GUILIN INSTITUTE OF OPTICAL COMMUNICATIONS, CH, no. 9, 30 September 2020 (2020-09-30), CH , pages 37 - 41, XP009550255, ISSN: 1002-5561
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