Polarization domains and self-mode-locked pulses in an erbium-doped fiber laser  

作　　者：程佩芸 韩孟孟 杜岳卿 舒学文 Peiyun Cheng;Mengmeng Han;Yueqing Du;Xuewen Shu(Wuhan National Laboratory for Optoelectronics&School of Optical and Electronic Information,Huazhong University of Science and Technology,Wuhan 430074,China;Key Laboratory of Light Field Manipulation and Information Acquisition,Ministry of Industry and Information Technology,Shaanxi Key Laboratory of Optical Information Technology,School of Physical Science and Technology,Northwestern Polytechnical University,Xi'an 710129,China)

机构地区：[1]Wuhan National Laboratory for Optoelectronics&School of Optical and Electronic Information,Huazhong University of Science and Technology,Wuhan 430074,China [2]Key Laboratory of Light Field Manipulation and Information Acquisition,Ministry of Industry and Information Technology,Shaanxi Key Laboratory of Optical Information Technology,School of Physical Science and Technology,Northwestern Polytechnical University,Xi'an 710129,China

出　　处：《Chinese Optics Letters》2023年第3期71-76,共6页中国光学快报（英文版）

基　　金：supported by the National Key Research and Development Program of China(No.2018YFE0117400);National Natural Science Foundation of China(No.62275093);China Postdoctoral Science Foundation(No.2018M642823)。

摘　　要：We have observed various polarization domains and a giant self-mode-locked pulse in a 130 m long erbium-doped fiber laser without any mode-locking devices.By adjusting the intracavity polarization controller,we investigated the evolution process of the polarization domain with the varying cavity birefringence.When the birefringence was close to zero,the polarization domains split into multidomains,and finally a giant self-mode-locked pulse formed for the first time.We analyzed that the generation of the self-mode-locked pulse was related to the multiple subdomains ascribed to the strong coherent cross coupling between the orthogonal polarization light components in the long fiber cavity.

关 键 词：fiber lasers polarization domains self-mode-locked pulse nonlinear optics 

分 类 号：TN248[电子电信—物理电子学]