基于45°倾斜光纤光栅的全光纤正常色散单偏振被动锁模激光器。

All-fiber normal-dispersion single-polarization passively mode-locked laser based on a 45°-tilted fiber grating.

作者信息

Liu Xianglian, Wang Hushan, Yan Zhijun, Wang Yishan, Zhao Wei, Zhang Wei, Zhang Lin, Yang Zhi, Hu Xiaohong, Li Xiaohui, Shen Deyuan, Li Cheng, Chen Guangde

机构信息

State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an, China.

出版信息

Opt Express. 2012 Aug 13;20(17):19000-5. doi: 10.1364/OE.20.019000.

DOI:10.1364/OE.20.019000

PMID:23038540

Abstract

An all-fiber normal-dispersion Yb-doped fiber laser with 45°-tilted fiber grating (TFG) is, to the best of our knowledge, experimentally demonstrated for the first time. Stable linearly-chirped pulses with the duration of 4 ps and the bandwidth of 9 nm can be directly generated from the laser cavity. By employing the 45° TFG with the polarization-dependent loss of 33 dB, output pulses with high polarization extinction ratio of 26 dB are implemented in the experiment. Our result shows that the 45° TFG can work effectively as a polarizer, which could be exploited to single-polarization all-fiber lasers.

摘要

据我们所知，首次通过实验证明了一种带有45°倾斜光纤光栅（TFG）的全光纤正常色散掺镱光纤激光器。该激光腔能够直接产生持续时间为4 ps、带宽为9 nm的稳定线性啁啾脉冲。通过使用偏振相关损耗为33 dB的45°倾斜光纤光栅，在实验中实现了偏振消光比高达26 dB的输出脉冲。我们的结果表明，45°倾斜光纤光栅可以有效地用作偏振器，可应用于单偏振全光纤激光器。