Phase-mismatched optical parametric oscillators based on aperiodic quasi-phase-matched crystals

被引：0
|
作者：
Yu, Songyin [1 ,2 ]
Qin, Mengke [1 ,2 ]
Zhang, Zhaowei [1 ,2 ,3 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China
[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China
[3] Huazhong Univ Sci & Technol, Shenzhen Res Inst, Shenzhen 518057, Peoples R China
来源：
OPTICS LETTERS | 2023年 / 48卷 / 21期
基金：
中国国家自然科学基金;
关键词：
MU-M; PULSE GENERATION; HIGH-POWER;
D O I：
10.1364/OL.501921
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present that femtosecond optical parametric oscillators (OPOs) based on aperiodic quasi-phase-matched (AQPM) crystals can be configured to operate in the "phase-mismatched" region. The phase-mismatch-induced frequency chirp is mainly introduced by the subcrystal that first interacts with pump pulses. By optimizing the intracavity group velocity dispersion and by selecting the direction of crystals, OPOs based on AQPM crystals could support the generation of wavelength-tunable, transform-limited pulses in an all-normal-dispersion cavity. In a preliminary experiment, transform-limited optical pulses with a tuning range over 1520-1660 nm were obtained by simply altering the cavity length. This scheme represents a unique and concise scheme of producing widely tunable, chirp-free femtosecond optical pulses. (c) 2023 Optica Publishing Group
引用
收藏
页码：5483 / 5486
页数：4
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