Generation of sub-three-cycle pulses at 53 MHz repetition rate via nonlinear compression in optical parametric oscillator  

作　　者：Lixin Yuan Yu Cai Yuxi Chu Jintao Fan Minglie Hu 苑莉薪;蔡宇;储玉喜;范锦涛;胡明列(Ultrafast Laser Laboratory,Key Laboratory of Opto-electronic Information Science and Technology of Ministry of Education,School of Precision Instruments and Opto-electronics Engineering,Tianjin University,Tianjin 300072,China;Georgia Tech Shenzhen Institute(GTSI),Tianjin University,Shenzhen 518067,China)

机构地区：[1]Ultrafast Laser Laboratory,Key Laboratory of Opto-electronic Information Science and Technology of Ministry of Education,School of Precision Instruments and Opto-electronics Engineering,Tianjin University,Tianjin 300072,China [2]Georgia Tech Shenzhen Institute(GTSI),Tianjin University,Shenzhen 518067,China

出　　处：《Chinese Optics Letters》2022年第5期33-37,共5页中国光学快报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(NSFC)(Nos.61827821 and 62105237);the Research and Development Program in Key Areas of Guangdong Province,China(No.2020B090922004).

摘　　要：We report an experimental generation of few-cycle pulses at 53 MHz repetition rate. Femtosecond pulses with pulse duration of 181 fs are firstly generated from an optical parametric oscillator(OPO). Then, the pulses are compressed to subthree-cycle with a hybrid compressor composed of a commercial single-mode fiber and a pair of prisms, taking advantage of the tunability of the OPO and the numerical simulating of the nonlinear compression system. Our compressed optical pulses possess an ultrabroadband spectrum covering over 470 nm bandwidth(at-10 dB), and the output intensity fluctuation of our system is less than 0.8%. These results show that our system can effectively generate few-cycle pulses at a repetition rate of tens of megahertz with excellent long-term stability, which could benefit future possible applications.

关 键 词：nonlinear compression few cycle pulse optical parametric oscillator 

分 类 号：TN752[电子电信—电路与系统]