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21 February 2020 Comprehensive study on the parameters affecting the line-width and stability of SOA-based SLM random fiber laser
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Abstract
We report several techniques affecting line-width and long-term stability of single longitudinal mode (SLM) random fiber laser (RFL) based on Rayleigh backscattering in a standard single mode fiber as distributed mirrors, and a semiconductor optical amplifier (SOA) as the gain medium. Three parameters were investigated; single mode fiber (SMF) length, the optical filter bandwidth, and the type of the cavity reflecting mirror. Line-width of the laser was measured at three values of SMF length; 100 m, 1 km, and 2 km. Impact of the optical filter bandwidth on the laser line-width was studied. Finally, long-term stability was characterized for two types of reflecting mirrors; a silver coated mirror, and a Faraday rotating mirror (FRM).
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Heba A. Shawki, Hussein E. Kotb, and Diaa Khalil "Comprehensive study on the parameters affecting the line-width and stability of SOA-based SLM random fiber laser", Proc. SPIE 11260, Fiber Lasers XVII: Technology and Systems, 1126028 (21 February 2020); https://doi.org/10.1117/12.2542661
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