Towards all-fiber structure pulsed mid-infrared laser by gas-filled hollow-core fibers  

作　　者：Wei Huang Yulong Cui Zhiyue Zhou Zhixian Li Yubin Chen Zefeng Wang 黄威;崔宇龙;周智越;李智贤;陈育斌;王泽锋(College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China;State Key Laboratoiy of Pulsed Power Laser Technology,Changsha 410073,China;Hunan Provincial Key Laboratory of High Energy Laser Technology,Changsha 410073,China;Luoyang Electronic Equipment Test Center of China,Key Laboratory of Electro-Optical Countermeasures Test & Evaluation Technology,Luoyang 471003,China)

机构地区：[1]College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China [2]State Key Laboratoiy of Pulsed Power Laser Technology,Changsha 410073,China [3]Hunan Provincial Key Laboratory of High Energy Laser Technology,Changsha 410073,China [4]Luoyang Electronic Equipment Test Center of China,Key Laboratory of Electro-Optical Countermeasures Test & Evaluation Technology,Luoyang 471003,China

出　　处：《Chinese Optics Letters》2019年第9期64-67,共4页中国光学快报（英文版）

基　　金：supported by the Outstanding Youth Science Fund Project of Hunan Provincial Natural Science Foundation(No.2019JJ20023);the National Natural Science Foundation of China(NSFC)(No.61705266)

摘　　要：We report here on a diode-pumped pulsed mid-infrared laser source based on gas-filled hollow-core fibers(HCFs)towards an all-fiber structure by the tapering method. The pump laser is coupled into an acetylene-filled HCF through a tapered single-mode fiber. By precisely tuning the wavelength of the diode to match different absorption lines of acetylene near 1.5 μm, mid-infrared emission around 3.1–3.2 μm is generated. With 2 m HCFs and3 mbar acetylene gas, a maximum average power of 130 m W is obtained with a laser slope efficiency of ~24%.This work provides a potential scheme for all-fiber mid-infrared fiber gas lasers.We report here on a diode-pumped pulsed mid-infrared laser source based on gas-filled hollow-core fibers(HCFs)towards an all-fiber structure by the tapering method. The pump laser is coupled into an acetylene-filled HCF through a tapered single-mode fiber. By precisely tuning the wavelength of the diode to match different absorption lines of acetylene near 1.5 μm, mid-infrared emission around 3.1–3.2 μm is generated. With 2 m HCFs and3 mbar acetylene gas, a maximum average power of 130 m W is obtained with a laser slope efficiency of ～24%.This work provides a potential scheme for all-fiber mid-infrared fiber gas lasers.

关 键 词：ALL-FIBER structure PULSED MID-INFRARED laser gas-filled hollow-core fibers 

分 类 号：O4[理学—物理]