Kerr-lens mode-locked polycrystalline Cr：ZnS femtosecond laser pumped by a monolithic Er：YAG laser

We demonstrated a Kerr-lens mode-locked polycrystalline Cr：ZnS laser pumped by a narrow-linewidth linearpolarised monolithic Er：YAG nonplanar ring oscillator operated at 1645 nm. With a 5-mm-thick sapphire plate for intracavity dispersion compensation, a compact and stable Kerr-lens mode-locking ope...

Full description

Saved in:
Bibliographic Details
Published inChinese physics B Vol. 26; no. 1; pp. 217 - 219
Main Author 胡呈峰 朱江峰 王兆华 孙芯彤 魏龙 令维军 董忠 王庆 高春清 魏志义
Format Journal Article
LanguageEnglish
Published 2017
Subjects
Nd：YAG
ZnS晶体
克尔透镜锁模
单片
多晶结构
激光器泵浦
环形振荡器
飞秒激光
Online AccessGet full text
ISSN1674-1056
2058-3834
DOI10.1088/1674-1056/26/1/014206

Cover

More Information
Summary:We demonstrated a Kerr-lens mode-locked polycrystalline Cr：ZnS laser pumped by a narrow-linewidth linearpolarised monolithic Er：YAG nonplanar ring oscillator operated at 1645 nm. With a 5-mm-thick sapphire plate for intracavity dispersion compensation, a compact and stable Kerr-lens mode-locking operation was realised. The oscillator delivered 125-fs pulses at 2347 nm with an average power of 80 m W. Owing to the special polycrystalline structure of the Cr：ZnS crystal, the second to fourth harmonic generation was observed by random quasi-phase-matching.
Bibliography:Chengfeng Hu1,Jiangfeng Zhu1,Zhaohua Wang2,Xintong Sun1,Long Wei1,Weijun Ling3,Zhong Dong3,Qing Wang4,Chunqing Gao4,Zhiyi Wei1,2（1. School of Physics and Optoelectronic Engineering, Xidian University, Xi＇an 710071, China; 2. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; 3.Department of Physics, Tianshui Normal University, Tianshui 741000, China; 4.Department of Opto-Electronics, Beijing Institute of Technology, Beijing 100081, China）
We demonstrated a Kerr-lens mode-locked polycrystalline Cr：ZnS laser pumped by a narrow-linewidth linearpolarised monolithic Er：YAG nonplanar ring oscillator operated at 1645 nm. With a 5-mm-thick sapphire plate for intracavity dispersion compensation, a compact and stable Kerr-lens mode-locking operation was realised. The oscillator delivered 125-fs pulses at 2347 nm with an average power of 80 m W. Owing to the special polycrystalline structure of the Cr：ZnS crystal, the second to fourth harmonic generation was observed by random quasi-phase-matching.
11-5639/O4
middle-infrared laser; mode-locked laser; polycrystalline Cr：ZnS
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/26/1/014206