Abstract

We demonstrate a harmonically pumped femtosecond optical parametric oscillator (OPO) laser using a frequency-doubled mode-locked Yb:KGW laser at a repetition rate of 75.5 MHz as the pump laser. Based on a bismuth borate nonlinear crystal, repetition rates up to 1.13 GHz are realized, which is 15 times that of the pump laser. The signal wavelength is tunable from 700 nm to 887 nm. The maximum power of the signal is 207 mW at the central wavelength of 750 nm and the shortest pulse duration is 117 fs at 780 nm. The beam quality (M² factor) in the horizontal and vertical directions of the output beam are 1.077 and 1.141, respectively.

© 2020 Chinese Laser Press

1-GHz harmonically pumped femtosecond optical parametric oscillator frequency comb

K. Balskus, S. M. Leitch, Z. Zhang, R. A. McCracken, and D. T. Reid
Opt. Express 23(2) 1283-1288 (2015)

High-harmonic-repetition-rate, 1 GHz femtosecond optical parametric oscillator pumped by a 76 MHz Ti:sapphire laser

A. Esteban-Martin, O. Kokabee, K. Moutzouris, and M. Ebrahim-Zadeh
Opt. Lett. 34(4) 428-430 (2009)

Harmonically pumped femtosecond optical parametric oscillator with multi-gigahertz repetition rate

Wenlong Tian, Zhaohua Wang, Jiangfeng Zhu, and Zhiyi Wei
Opt. Express 24(26) 29814-29821 (2016)

Degenerate 1 GHz repetition rate femtosecond optical parametric oscillator

Markku Vainio, Mikko Merimaa, Lauri Halonen, and Konstantin Vodopyanov
Opt. Lett. 37(21) 4561-4563 (2012)

Synchronously pumped optical parametric oscillators in the 1.5-µm spectral region with a repetition rate of 10 GHz

S. Lecomte, R. Paschotta, M. Golling, D. Ebling, and U. Keller
J. Opt. Soc. Am. B 21(4) 844-850 (2004)