2-switched Er^(3+)/Dy^(3+)codoped ZrF_(4)fiber laser:continuously tunable pulse generation from 3.06 to 3.62μm

作     者：王永志 罗鸿禹 王彪 李剑峰 刘永 Yongzhi Wang;Hongyu Luo;Biao Wang;Jianfeng Li;Yong Liu

作者机构：State Key Laboratory of Electronic Thin Films and Integrated DevicesSchool of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 610054China 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2023年第21卷第4期

页      面：49-52页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：supported by the National Natural Science Foundation of China(NSFC)(No.62005040) the Fundamental Research Funds for the Central Universities(No.ZYGX2020KYQD003) the Science and Technology Project of Sichuan Province(No.2021YJ0368) 

主　　题：Q switching continuous tunability Fe^(2+):ZnSe InAs ZrF_(4)fiber 

摘      要：In this Letter,we report on widely tunable pulse generation from a red-diode-clad-pumped mid-infrared[mid-IR)Er^(3+)/Dy^(3+)codoped ZrF_(4)fiber laser,for the first time,to the best of our *** a Fe^(2+):ZnSe crystal,continuously tunable Qswitched pulses across the range of 3.06–3.62μm have been attained,which not only represents the widest range[in wavelength domain)from a pulsed rare-earth-doped fiber laser at any wavelength,but also almost entirely covers the strong absorption band of C-H bonds in the mid-IR,providing a potential way for gas detection and polymer *** addition,the commercial InAs quantum-well-based saturable absorbers[SAs)have been employed instead,and the obtained longest Q-switching wavelength of 3.39μm is slightly shorter than 3.444μm determined by its nominal direct bandgap of 0.36 eV.