Compact, 2.95-GHz repetition-rate femtosecond optical parametric oscillator with tunable pulse repetition frequency

被引：2

作者：

Bi, GenYu ^{[1
]}

Chu, Yuxi ^{[1
,2
]}

Zhang, Meng ^{[1
]}

Hu, Minglie ^{[1
]}

机构：

[1] Tianjin Univ, Sch Precis Instruments & Optoelect Engn, Ultrafast Laser Lab, Key Lab Optoelect Informat Technol,Minist Educ, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Georgia Tech Shenzhen Inst GTSI, Shenzhen 518071, Guangdong, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2021年 / 500卷

基金：

美国国家科学基金会;

关键词：

Nonlinear optics; Parametric processes; Parametric oscillators and amplifiers; Ultrafast nonlinear optics; GENERATION;

D O I：

10.1016/j.optcom.2021.127339

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a compact femtosecond optical parametric oscillator (OPO) with a tunable repetition rate that is harmonically pumped using a 52.5 MHz Yb-doped fiber laser system. By reducing the OPO cavity length, the repetition rate can be adjusted successively from 1.935 to 2.95 GHz at 52.5 MHz intervals. The multiplication of the repetition rate is achieved by placing a nonlinear crystal in a compact linear cavity, and the minimum cavity length is 47.8 mm. The maximum signal power (205.2 mW) at 2.04 GHz is obtained at an input pump power of 2.35 W and a central wavelength of 1472 nm. The central wavelength of the signal pulses can be tuned from 1383 to 1596 nm. To the best of our knowledge, 2.95 GHz is the highest repetition rate achieved using a femtosecond OPO based on an ultrashort cavity with a length that is N times (N is an integer) shorter than that of the pump cavity.

引用

页数：4

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