Narrow line width dual wavelength semiconductor optical amplifier based random fiber laser

Heba A. Shawki; Hussein E. Kotb; Diaa Khalil

doi:10.1117/12.2289189

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26 February 2018 Narrow line width dual wavelength semiconductor optical amplifier based random fiber laser

Heba A. Shawki, Hussein E. Kotb, Diaa Khalil

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Proceedings Volume 10512, Fiber Lasers XV: Technology and Systems; 105122D (2018) https://doi.org/10.1117/12.2289189
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

A novel narrow line-width Single longitudinal mode (SLM) dual wavelength random fiber laser of 20 nm separation between wavelengths of 1530 and 1550 nm is presented. The laser is based on Rayleigh backscattering in a standard single mode fiber of 2 Km length as distributed mirrors, and a semiconductor optical amplifier (SOA) as the optical amplification medium. Two optical bandpass filters are used for the two wavelengths selectivity, and two Faraday Rotator mirrors are used to stabilize the two lasing wavelengths against fiber random birefringence. The optical signal to noise ratio (OSNR) was measured to be 38 dB. The line-width of the laser was measured to be 13.3 and 14 KHz at 1530 and 1550 nm respectively, at SOA pump current of 370 mA.

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Heba A. Shawki, Hussein E. Kotb, and Diaa Khalil "Narrow line width dual wavelength semiconductor optical amplifier based random fiber laser", Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 105122D (26 February 2018); https://doi.org/10.1117/12.2289189

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