Title:
ALL-FIBER TRANSVERSE MODE SWITCHABLE HIGH-ORDER MODE BRILLOUIN LASER
Document Type and Number:
WIPO Patent Application WO/2019/233012
Kind Code:
A1
Abstract:
An all-fiber transverse mode switchable high-order mode Brillouin laser. The laser comprises a narrow linewidth pump laser (1), an optical amplifier (2), a 1*N optical switch (3) where (N ≥ 2), an optical fiber mode selection coupler group, a first polarization controller (7), a fiber optic circulator (8), a fiber optic coupler (9), a second polarization controller (10), and a few-mode fiber (11). Utilizing a Brillouin nonlinear gain of the few-mode fiber (11) in an annular cavity, the invention realizes resonance amplification of a specific order of a transverse mode in a cavity, thereby obtaining a transverse mode switchable high-order mode laser output. An all-fiber structure is used. The application has the advantages of a simple structure, low costs, being easy to integrate an optical fiber system, good stability of laser output, and narrow linewidth, improving the practicality and reliability of high-order mode lasers.
Inventors:
GAN JIULIN (CN)
HENG XIAOBO (CN)
YANG ZHONGMIN (CN)
ZHANG ZHISHEN (CN)
HENG XIAOBO (CN)
YANG ZHONGMIN (CN)
ZHANG ZHISHEN (CN)
Application Number:
PCT/CN2018/110443
Publication Date:
December 12, 2019
Filing Date:
October 16, 2018
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
H01S3/094; H01S3/067; H01S3/30; H01S5/04
Foreign References:
| CN108551075A | 2018-09-18 | |||
| CN108051890A | 2018-05-18 | |||
| CN107834351A | 2018-03-23 | |||
| US20170302048A1 | 2017-10-19 |
Other References:
HENG, XIAOBO ET AL.: "Transverse Mode Switchable All-Fiber Brillouin Laser", OPTICS LETTERS, vol. 43, no. 17, 24 August 2018 (2018-08-24) - 1 September 2018 (2018-09-01), pages 4172 - 4175, XP055664844
CHEN, JIALI ET AL.: "Refractive Index Fiber Sensor Based on Brillouin Fast Light", THE JAPAN SOCIETY OF APPLIED PHYSICS - APPLIED PHYSICS EXPRESS, vol. 7, no. 012501, 18 December 2013 (2013-12-18) - 2014, pages 012501-1 - 012501-3, XP055664848
REN, FANG ET AL.: "Spatial-Mode Switchable Ring Fiber Laser Based on Low Mode-Crosstalk All-Fiber Mode MUX/DEMUX", OPTICS AND LASER TECHNOLOGY, vol. 101, 10 November 2017 (2017-11-10), pages 21 - 24, XP085336097, DOI: 10.1016/j.optlastec.2017.10.034
CHEN, JIALI ET AL.: "Refractive Index Fiber Sensor Based on Brillouin Fast Light", THE JAPAN SOCIETY OF APPLIED PHYSICS - APPLIED PHYSICS EXPRESS, vol. 7, no. 012501, 18 December 2013 (2013-12-18) - 2014, pages 012501-1 - 012501-3, XP055664848
REN, FANG ET AL.: "Spatial-Mode Switchable Ring Fiber Laser Based on Low Mode-Crosstalk All-Fiber Mode MUX/DEMUX", OPTICS AND LASER TECHNOLOGY, vol. 101, 10 November 2017 (2017-11-10), pages 21 - 24, XP085336097, DOI: 10.1016/j.optlastec.2017.10.034
Attorney, Agent or Firm:
GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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