Chinese Optics Letters, Volume. 15, Issue 7, 070604(2017)
Impact of external optical feedback on the beat notes of dual-polarization fiber lasers
Figures & Tables(10)
Fig. 1. Schematic of a dual-frequency fiber laser with external optical feedback by an FBG reflector.
Fig. 2. Experimental setup for dual-frequency fiber laser beat note’s frequency stabilization. The laser can be either connected with Structure A or B as the feedback element.
Fig. 3. Phase noise spectrum with different feedback lengths. Inset: a free-running DBR output on the BOSA.
Fig. 4. Phase-noise reduction at 10 kHz offset with different feedback lengths.
Fig. 8. Measured beat frequency offset by changing the feedback light’s polarization.
Fig. 9. Experimental setup for feedback’s impact on DBR sensitivity.
Fig. 10. DBR sensitivity comparison before and after optical feedback.
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Kuanglu Yu, Linghao Cheng, Yiqin Lao, Yunbo Li, Bai-Ou Guan, Chongqing Wu, Yao Zhao, "Impact of external optical feedback on the beat notes of dual-polarization fiber lasers," Chin. Opt. Lett. 15, 070604 (2017)
Paper Information
Category: Fiber Optics and Optical Communications
Received: Jan. 22, 2017
Accepted: Mar. 24, 2017
Published Online: Jul. 20, 2018
The Author Email: Linghao Cheng (chenglh@gmail.com)
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