Narrow line width dual wavelength semiconductor optical amplifier based random fiber laser
Shawki, H.A; Kotb, H.E; Khalil, Diaa;
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.
Other data
Title | Narrow line width dual wavelength semiconductor optical amplifier based random fiber laser | Authors | Shawki, H.A; Kotb, H.E ; Khalil, Diaa | Keywords | Dual wavelength laser; Rayleigh Backscattering; Random fiber laser; Narrow line-width; terahertz (THz) generation; Semiconductor optical amplifier; Single longitudinal mode; RING LASER; RAYLEIGH-SCATTERING; OPERATOR ALGEBRA; SINGLE; BACKSCATTERING; BIREFRINGENCE; BAND | Issue Date | 2018 | Publisher | SPIE-INT SOC OPTICAL ENGINEERING | Journal | Proceedings of SPIE - The International Society for Optical Engineering | ISBN | 9781510615090 | ISSN | 0277-786X | DOI | 10.1117/12.2289189 | Scopus ID | 2-s2.0-85045671022 | Web of science ID | WOS:000432469600065 |
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