1 July 2015 Noise performance improvement of dual-polarization fiber grating laser through external optical feedback
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Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 96552Y (2015) https://doi.org/10.1117/12.2184234
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of
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.
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Yiqin Lao, Yiqin Lao, Kuanglu Yu, Kuanglu Yu, Linghao Cheng, Linghao Cheng, Yizhi Liang, Yizhi Liang, Hao Liang, Hao Liang, Bai-Ou Guan, Bai-Ou Guan, } "Noise performance improvement of dual-polarization fiber grating laser through external optical feedback", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96552Y (1 July 2015); doi: 10.1117/12.2184234; https://doi.org/10.1117/12.2184234
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