偏振控制器
材料科学
光纤激光器
光学
色散位移光纤
保偏光纤
渐变折射率纤维
光电子学
波长
光纤
光纤传感器
物理
作者
Chunmei Ouyang,Perry Ping Shum,Honghai Wang,Songnian Fu,Xiangguo Cheng,Jia Haur Wong,Xiaolei Tian
标识
DOI:10.1109/jqe.2010.2071374
摘要
We experimentally demonstrate a broadly wavelength-tunable high-energy Yb-doped mode-locked fiber laser without any dispersion compensation. Wide tunability and filtering effect are simultaneously obtained using a fiber Sagnac loop filter in an all-fiber laser mode-locked by a semiconductor saturable absorber mirror. The Sagnac loop filter is constructed with a segment of a high birefringence (HiBi) fiber, a 3-dB coupler, and a polarization controller. By optimizing the HiBi fiber length and adjusting the polarization controller within the loop, the wavelength of the output pulse with 3 nJ pulse energy could be continuously tuned over the range from 1032 to 1052 nm. The heating of the HiBi fiber also led to wavelength shifting of the output pulse with a sensitivity of approximately ${-}{\rm 0.3}~{\rm nm}/^{\circ}{\rm C}$ .
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