Saturable absorber–based single-longitudinal mode tunable fiber laser using a Faraday rotator mirror as the rear cavity end

Hsiang Wang; Hung-Wen Chiu; Shien-Kuei Liaw; Chin-Cheng Fan

doi:10.1117/1.OE.53.11.116108

11 November 2014 Saturable absorber–based single-longitudinal mode tunable fiber laser using a Faraday rotator mirror as the rear cavity end

Hsiang Wang, Hung-Wen Chiu, Shien-Kuei Liaw, Chin-Cheng Fan

Author Affiliations +

Optical Engineering, Vol. 53, Issue 11, 116108 (November 2014). https://doi.org/10.1117/1.OE.53.11.116108

Abstract

A single-longitudinal mode selection is realized in a linear-cavity tunable fiber laser constructed using a Faraday rotator mirror and a partial reflectance fiber Bragg grating as the cavity ends. At both tuning wavelengths of 1543.47 and 1557.52 nm, the measured optical signal-to-noise ratio is larger than 40 dB and a linewidth less than 1 MHz is obtained. It is based on the usage of a piece of gain fiber type saturable absorber as the mode filter. The pumping power efficiency is improved by 10% by recycling the residual pump power to the gain medium.

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Hsiang Wang, Hung-Wen Chiu, Shien-Kuei Liaw, and Chin-Cheng Fan "Saturable absorber–based single-longitudinal mode tunable fiber laser using a Faraday rotator mirror as the rear cavity end," Optical Engineering 53(11), 116108 (11 November 2014). https://doi.org/10.1117/1.OE.53.11.116108

Published: 11 November 2014

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