Main > HPArticle > Harmonically pump femtosecond optical parametric oscillator to 1.13 GHz by a femtosecond 515 nm laser
  • Abstract
  • Get PDF
  • Paper information
  • Manuscript Accepted: Nov. 8, 2019

    Online Published: Nov. 25, 2019

Chinese Optics Letters, 2020, Vol. 18, Issue 3, pp.

Harmonically pump femtosecond optical parametric oscillator to 1.13 GHz by a femtosecond 515 nm laser

Song Jiajun, Meng Xianghao, Wang Zhaohua, Wang Xianzhi, Tian Wenlong, Zhu Jiangfeng, fang shaobo, Teng Hao, Wei Zhiyi

Author Affiliations

  • Chinese Academy of Sciences
  • Xidian University
  • Xidian University
  • Institute of Physics, Chinese Academy of Sciences
  • 中科院物理所

Abstract

We demonstrate a harmonically pumped femtosecond 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 BIBO nonlinear crystal, the repetition rates up to 1.13 GHz is realized, which is the 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 direction of output beam are 1.077 and 1.141, respectively.

keywords