High peak power hybrid MOPA laser with tunable pulse repetition frequency and pulse duration

被引：9

作者：

Nie, Mingming ^{[1
]}

Liu, Qiang ^{[1
]}

Ji, Encai ^{[1
]}

Cao, Xuezhe ^{[1
]}

Xing, Fu ^{[1
]}

Gong, Mali ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Precis Instrument, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China

来源：

APPLIED OPTICS | 2017年 / 56卷 / 12期

基金：

中国国家自然科学基金;

关键词：

FIBER LASER; AMPLIFIER;

D O I：

10.1364/AO.56.003457

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we demonstrated a hybrid master oscillator power amplifier (MOPA) laser with high peak power and widely tunable pulse repetition frequency (PRF) and pulse duration. The first-stage solid-state amplifier was carefully designed to keep good beam quality and supply high gain simultaneously. The maximum peak power of 760 kW was achieved with average power of 42 W, PRF of 50 kHz, pulse duration of 1.1 ns, and near-diffraction limited beam quality. The MOPA laser covers a broad tunable temporal range with 1-100 ns for pulse duration and 50 kHz-1MHz for PRF. Moreover, we experimentally and numerically figure out that Nd: YVO4 crystal behaves as if continuous-wave (CW) amplification takes place when PRF is larger than 30 kHz. (C) 2017 Optical Society of America

引用

页码：3457 / 3461

页数：5

共 18 条

[1] Single-mode high-peak-power passively Q-switched diode-pumped Nd:YAG laser [J].