Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7130568 | Optics & Laser Technology | 2014 | 6 Pages |
Abstract
A wide-tuning range linear cavity C+L band tunable fiber laser is proposed in this paper. By using 3-point bending device to facilitate wavelength tuning of fiber Bragg gratings (FBGs), a scheme with two parallel strain-tunable FBGs (TFBGs) is demonstrated in L band operation. A large tuning range of over 22.5Â nm with 0.1Â nm precise resolution for each TFBG is obtained. The overlapping tuning range for two TFBGs is from 1564 to 1600.5Â nm with 2Â dB power variation. Using 10Â M Erbium-doped fiber (EDF) and 100Â mW pumping power, the stable lasing output power is measured at 1582.0Â nm with threshold pump power and side mode suppression ratio (SMSR) of 10Â mW and 50Â dB, respectively. And the measured slope efficiency is 11.5% corresponding to quantum efficiency of 12.3%.
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Authors
Shien-Kuei Liaw, Chow-Shing Shin, Wen-Fang Wu,