Design and Experimental Study of Tunable Fiber Ring Laser of C+L Band

Dan WANG, Yun-wei JIA, Yan-bing XUE, Chun-lei ZHAO

Abstract


A tunable fiber ring laser based on L band EDFA (erbium-doped fiber amplifier) was proposed. It has high signal-to-noise ratio and wide tuning range. The influence factor of the tuning range and the time delay of relaxation oscillation were studied. And the FFP-TF(Fabry-Perot tunable filter) was used as a wavelength selector to produce tunable laser. Experiments show that by using appropriate time-delay and auto-adjusting the intra-cavity loss, the signal-to-noise ratio can be increased and the tunable range can be broadened to C+L band.

Keywords


Fiber laser, Tunable filter, Erbium-doped fiber, Intra-cavity loss, Laser sensing


DOI
10.12783/dtetr/eeta2017/7739

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