High-Energy Injection-Seeded Single-Frequency Er:YAG Laser at 1645 nm Pumped by a 1532 nm Fiber Laser-Reference-Cited by-同舟云学术

High-Energy Injection-Seeded Single-Frequency Er:YAG Laser at 1645 nm Pumped by a 1532 nm Fiber Laser

Published:2024-08-12 Issue:8 Volume:11 Page:752
ISSN:2304-6732
Container-title:Photonics
language:en
Short-container-title:Photonics

Author:

Wu Jiaze¹^ORCID,Ju Youlun¹,Fan Jiawei¹,Zhao Yiming²³,Yang Kun⁴⁵,Geng Lijie⁴,Cai Yuanxue⁶,Song Lei⁷,Zhuang Yaming⁷,Wu Shuyun⁷^ORCID,Duan Xiaoming¹⁸^ORCID

Affiliation:

1. National Key Laboratory of Laser Spatial Information, Harbin Institute of Technology, Harbin 150001, China

2. Beijing Research Institute of Telemetry, Beijing 100001, China

3. Advanced Research Institute of Multidisciplinary Sciences, Beijing Institute of Technology, Beijing 100081, China

4. School of Electronic and Information, Henan Province Optoelectronic Sensing and Information Processing Engineering Technology Research Center, Zhengzhou University of Light Industry, Zhengzhou 450001, China

5. School of Physics and Optoelectronic Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China

6. Research Center for Photonics and Advanced Sensing Technology, Tianjin University of Science and Technology, Tianjin 300457, China

7. Norla Institute of Technical Physics, Chengdu 610041, China

8. Zhengzhou Research Institute of Harbin Institute of Technology, Zhengzhou 450000, China

Abstract

A single-frequency, Q-switched Er:YAG laser, pumped by a 1532 nm fiber laser, has been demonstrated. At the pulse repetition frequency (PRF) of 200 Hz, the maximum single-frequency laser of 5.5 mJ is attained, and, correspondingly, the pulse width is 212 ns. Using the heterodyne technique, the single-frequency laser spectrum’s full width at half maximum is determined to be 2.73 MHz. The experimental results show that the single-frequency laser has excellent beam quality factors (M2) of 1.18 and 1.21.

Funder

Key Research and Development Projects of Henan Province

Training Plan of Young Backbone Teachers in Universities of Henan Province

Publisher

MDPI AG

Link

https://www.mdpi.com/2304-6732/11/8/752/pdf

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