材料科学
光纤布拉格光栅
光学
激光器
光纤激光器
分布反馈激光器
分布式布拉格反射镜
光电子学
磷
保偏光纤
光纤
波长
光纤传感器
长周期光纤光栅
物理
作者
Xuantung Pham,Jinhai Si,Tao Chen,Zhen Niu,Xun Hou
出处
期刊:Applied Optics
[The Optical Society]
日期:2020-03-25
卷期号:59 (10): 3081-3081
被引量:6
摘要
We demonstrate a distributed Bragg reflector fiber laser that is capable of long-term operation at ultra-high temperatures. To form the laser cavity, a piece of Er-doped fiber is fusion spliced to a pair of type II-IR gratings, which are written using a femtosecond laser with a phase mask. Saturated gratings with different reflectivities are fabricated by varying the position of the grating region relative to the fiber core center. An eccentric grating with a relatively low reflectivity is chosen as the laser output coupler, while a regular grating with a higher reflectivity is used as the laser’s high-reflection reflector. After an annealing process, the laser performance is tested at high temperatures. The results show that the laser can operate with a stable output wavelength and no output power degradation at high temperatures up to 1000°C.
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