材料科学
光纤布拉格光栅
光纤激光器
光学
激光线宽
激光器
保偏光纤
光电子学
飞秒
激光功率缩放
磷
光纤传感器
纤维
波长
物理
复合材料
作者
Ruidong Lv,Tao Chen,Jin Huang,Zenghui Sun,Yuxing Hou,Jinhai Si,Yu Yang,Xun Hou
出处
期刊:IEEE Photonics Technology Letters
[Institute of Electrical and Electronics Engineers]
日期:2023-12-15
卷期号:35 (24): 1319-1322
标识
DOI:10.1109/lpt.2023.3320711
摘要
A 1080 nm single-polarization single frequency distributed Bragg reflector (DBR) fiber laser is fabricated by directly inscribing fiber Bragg gratings (FBGs) in ytterbium-doped fiber using a femtosecond laser. The high reflectivity FBG with high birefringence is prepared by femtosecond laser overexposure, serving a polarizing element. The low reflectivity FBG is inscribed by scanning axially along the fiber to narrow the FBG bandwidth. This DBR fiber laser avoided the mode hopping as temperature variation and intracavity fusion loss. A single frequency laser with an output power greater than 11 mW, a linewidth of 32 kHz, and a polarization extinction ratio of 10 dB is achieved at a pump power of 517 mW. The influences of the cavity length and LR-FBG reflectivity on the linewidth and output power are further studied. This provides a reference for optimizing the performance of integrated single-frequency DBR fiber laser prepared by a femtosecond laser.
科研通智能强力驱动
Strongly Powered by AbleSci AI