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(State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Optoelectronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China)

机构地区：[1]State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Optoelectronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China

出　　处：《Chinese Optics Letters》2023年第4期49-52,共4页中国光学快报（英文版）

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)。

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 knowledge.Using 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 processing.In 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.

关 键 词：Q switching continuous tunability Fe^(2+):ZnSe INAS ZrF_(4)fiber 

分 类 号：TN248[电子电信—物理电子学]