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Title:
SINGLE POLARIZATION FIBER LASER, PREPARATION DEVICE THEREOF, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/183749
Kind Code:
A1
Abstract:
The present invention relates to a single polarization fiber laser, a preparation device thereof, and a preparation method therefor. The preparation device for the single polarization laser comprises a second pump source, a second wavelength division multiplexer connected to the second pump source, an isolator connected to the second wavelength division multiplexer, a coupler connected to the isolator, an optical spectrum analyzer and a photodetector connected to the coupler, a spectrum analyzer connected to the photodetector, and a polishing and burnishing machine mechanism. According to the preparation device for the single polarization laser, a side of a phase-shifted fiber Bragg grating is polished and burnished by means of the polishing and burnishing machine mechanism, a laser optical spectrum displayed on the optical spectrum analyzer, and the change in a laser beat frequency signal recorded by the spectrum analyzer are observed, and the thickness of the phase-shifted fiber Bragg grating is controlled so as to realize a single polarization laser output for the phase-shifted fiber Bragg grating. The single polarization laser is simple in the manufacturing process, and low in production costs, and scale production can be realized.

Inventors:
HE, Jun (Room 326, College of Optoelectronic EngineeringShenzhen University, No.3688, Nanhai Avenue, Nanshan Distric, Shenzhen Guangdong 0, 518060, CN)
WANG, Yiping (Room 328, College of Optoelectronic EngineeringShenzhen University, No.3688, Nanhai Avenue, Nanshan Distric, Shenzhen Guangdong 0, 518060, CN)
GUO, Kuikui (Room 329, College of Optoelectronic EngineeringShenzhen University, No.3688, Nanhai Avenue, Nanshan Distric, Shenzhen Guangdong 0, 518060, CN)
Application Number:
CN2018/080462
Publication Date:
October 03, 2019
Filing Date:
March 26, 2018
Export Citation:
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Assignee:
SHENZHEN UNIVERSITY (College of Optoelectronic Engineering, Shenzhen University No.3688, Nanhai Avenue, Nanshan Distric, Shenzhen Guangdong 0, 518060, CN)
International Classes:
H01S3/067; H01S3/10
Foreign References:
CN1822450A2006-08-23
CN201629489U2010-11-10
US5187760A1993-02-16
Other References:
YULIANG LIU: "Fiber Laser Sensing System and Its Applications", PHOTONIC SENSORS, vol. 1, no. 1, 1 March 2011 (2011-03-01), pages 43 - 53, XP055642047, ISSN: 2190-7439
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (Room 4501, No.6 Zhujiang East Road Tianhe Distric, Guangzhou Guangdong 3, 510623, CN)
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