15-μJ picosecond hollow-core-fiber-feedback optical parametric oscillator

被引：6
|
作者：
Wu, Yudi [1 ]
Fu, Qiang [1 ]
Liang, Sijing [1 ]
Poletti, Francesco [1 ]
Richardson, David J. [1 ]
Xu, Lin [1 ]
机构：
[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, England
来源：
OPTICS EXPRESS | 2023年 / 31卷 / 14期
基金：
英国工程与自然科学研究理事会;
关键词：
DIFFERENCE-FREQUENCY-GENERATION; NUMERICAL INVESTIGATIONS; HIGH-ENERGY; MID-IR; PULSES;
D O I：
10.1364/OE.494037
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report a high-energy, picosecond, mid-infrared (MIR) optical parametric oscillator (OPO), in which a length of hollow-core-fiber (HCF) is employed to enable operation at 1-MHz repetition rate in a compact cavity format. The OPO is synchronously pumped by an ytterbium doped-fiber (YDF) master-oscillator-power-amplifier (MOPA) system, seeded by a 1040-nm gain-switched laser diode (GSLD). Using periodically poled lithium niobate (PPLN) as the nonlinear crystal, the OPO generates signal and idler beams with tunable wavelengths in the range of 1329-1641 nm and 2841-4790 nm, respectively. The OPO provides 137-ps pulses with a maximum signal energy of 10.05 & mu;J at 1600 nm and a maximum idler energy of 5.13 & mu;J at 2967 nm. This, to the best of our knowledge, represents the highest energy MIR pulses, as well as the highest total converted pulse energy (15.18 & mu;J), ever achieved from a fiber laser pumped picosecond OPO.Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
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收藏
页码：23419 / 23429
页数：11
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