All-fiber linearly polarized laser oscillator by fiber coiling loss control
All-fiber linearly polarized laser oscillator by fiber coiling loss control作者机构：Center for Photonics and Electronics Department of Precision Instrument Tsinghua University Beijing 100084 China
出 版 物：《Chinese Physics B》 (中国物理B（英文版）)
年 卷 期：2018年第27卷第4期
页 面：305-308页
核心收录：
学科分类：080904[工学-电磁场与微波技术] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学]
基 金：Project supported by the National Key Research and Development Program of China(Grant No.2017YFB1104500) the National Natural Science Foundation of China(Grant No.61675114) the Tsinghua University(THU)Initiative Scientific Research Program,China(Grant No.20151080709)
主 题：fiber laser oscillator linearly polarized all-fiber
摘 要：In this paper,we demonstrate an all-fiber linearly polarized fiber laser *** single polarization of the oscillator is achieved through the careful designing of the active fiber *** relationship between fiber coiling diameter and polarization extinction ratio and optical efficiency is studied,whose results lead to an optimized *** thermal management of the oscillator is also refined,which allows the oscillator to reach a maximum output power of44.1 W with an optical-to-optical efficiency of 57.9%.A high average polarization extinction ratio of 21.6 d B is achieved during a 2-hour stability *** oscillator also owns a narrow 3-d B bandwidth of 0.1 nm,as well as near-diffraction-limit beam quality of M^2～ 1.14.
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