Tunable dual-wavelength fiber laser based on a single fiber Bragg grating in a Sagnac loop interferometer
Tunable dual-wavelength fiber laser based on a single fiber Bragg grating in a Sagnac loop interferometer
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DOI：
10.1016/j.optcom.2008.01.033
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发表时间：
2008-05
影响因子：
2.4
通讯作者：
D. Moon;G. Sun;A. Lin;Xueming Liu;Y. Chung
中科院分区：
文献类型：
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作者：
D. Moon;G. Sun;A. Lin;Xueming Liu;Y. Chung
在Sagnac环路干涉仪中，我们提出了一种简单的双波长掺Er光纤激光器结构，这种结构是在两根不同光纤的接头上写入双波长光纤布拉格光栅，用于波长选择滤光片。相邻激光波长之间的波长间隔为1.12 nm，边模抑制比(SMSR)大于55dB。在两分钟的时间内，输出功率的变化小于0.8dB。此外，利用热加热方法可以有效地调谐激光波长。
We propose a simple dual-wavelength Er-doped fiber laser configuration based on a dual-wavelength fiber Bragg grating written on the splice joint between two different fibers for wavelength-selective filter in the Sagnac loop interferometer. The wavelength separation between the adjacent lasing wavelengths is 1.12nm and the side-mode suppression ratio (SMSR) is over 55dB. The output power variation is less than 0.8dB over a two-minute period. Moreover, the lasing wavelength can be effectively tuned using the thermal heating method.