A Yb:KGW dual-crystal regenerative amplifier-Reference-Cited by-同舟云学术

A Yb:KGW dual-crystal regenerative amplifier

Published:2020 Issue: Volume:8 Page:
ISSN:2095-4719
Container-title:High Power Laser Science and Engineering
language:en
Short-container-title:High Pow Laser Sci Eng

Author:

He Huijun,Yu Jun,Zhu Wentao,Guo Xiaoyang,Zhou Cangtao,Ruan Shuangchen

Abstract

Abstract This study develops a Yb:KGW dual-crystal based regenerative amplifier. The thermal lensing and gain-narrowing effects are compensated by the dual-crystal configuration. Sub-nanojoule pulses are amplified to 1.5 mJ with 9 nm spectral bandwidth and 1 kHz repetition rate using chirped pulse amplification technology. Consequently, 1.2 mJ pulses with a pulse duration of 227 fs are obtained after compression. Thanks to the cavity design, the output laser was a near diffraction limited beam with M2 around 1.1. The amplifier has the potential to boost energy above 2 mJ after compression and act as a front end for a future kilohertz terawatt-class diode-pumped Yb:KGW laser system.

Publisher

Cambridge University Press (CUP)

Subject

Nuclear Energy and Engineering,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

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