Abstract

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–1 MHz for PRF. Moreover, we experimentally and numerically figure out that $\mathrm{Nd}\text{:}{\mathrm{YVO}}_4$ crystal behaves as if continuous-wave (CW) amplification takes place when PRF is larger than 30 kHz.

© 2017 Optical Society of America

Efficient UV generation of a Yb-fiber MOPA producing high peak power for pulse durations of from 100 ps to 2 ns

Yasuhiro Kamba, Kazuyoku Tei, Shigeru Yamaguchi, Jun Enokidani, and Shin Sumida
Opt. Express 21(22) 25864-25873 (2013)

High-repetition-rate single-frequency Ho:YAG MOPA system

Yixuan Zhang, Chunqing Gao, Qing Wang, QuanXin Na, Mingwei Gao, Meng Zhang, and Shuai Huang
Appl. Opt. 57(15) 4222-4227 (2018)

150 W high-average-power, single-frequency nanosecond fiber laser in strictly all-fiber format

Rongtao Su, Pu Zhou, Hu Xiao, Xiaolin Wang, and Xiaojun Xu
Appl. Opt. 51(16) 3655-3659 (2012)

5.6 kW peak power, nanosecond pulses at 274 nm from a frequency quadrupled Yb-doped fiber MOPA

Jing He, Di Lin, Lin Xu, Martynas Beresna, Michalis N. Zervas, Shaif-ul Alam, and Gilberto Brambilla
Opt. Express 26(6) 6554-6559 (2018)

High-power fiber amplifier with widely tunable repetition rate, fixed pulse duration, and multiple output wavelengths

Paul E. Schrader, Roger L. Farrow, Dahv A. V. Kliner, Jean-Philippe Fève, and Nicolas Landru
Opt. Express 14(24) 11528-11538 (2006)