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Proceedings Paper

Noise performance improvement of dual-polarization fiber grating laser through external optical feedback
Author(s): Yiqin Lao; Kuanglu Yu; Linghao Cheng; Yizhi Liang; Hao Liang; Bai-Ou Guan
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Paper Abstract

The noise performance of the beat note generated by a dual-polarization fiber grating laser is very critical for sensing applications. To reduce the noise of the beat note, external optical feedback is employed with a fiber Bragg grating as a reflector. It then shows that a longer feedback time results in larger noise reduction. With a 50 m single mode fiber as the delay line, more than 20 dB phase noise reduction has been achieved for a dual-polarization fiber grating laser which shows a phase noise of -92 dBc/Hz @ 10 kHz offset with external optical feedback applied.

Paper Details

Date Published: 1 July 2015
PDF: 4 pages
Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96552Y (1 July 2015); doi: 10.1117/12.2184234
Show Author Affiliations
Yiqin Lao, Jinan Univ. (China)
Kuanglu Yu, Jinan Univ. (China)
Linghao Cheng, Jinan Univ. (China)
Yizhi Liang, Jinan Univ. (China)
Hao Liang, Jinan Univ. (China)
Bai-Ou Guan, Jinan Univ. (China)

Published in SPIE Proceedings Vol. 9655:
Fifth Asia-Pacific Optical Sensors Conference
Byoungho Lee; Sang-Bae Lee; Yunjiang Rao, Editor(s)

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