Mid-IR optical parametric oscillation and second harmonic generation of repetitively pulsed output of a fibre-laser pumped Tm3+ :YAP laser in a fan-out periodically poled MgO:LiNbO3 crystal

IF 0.9 4区 工程技术 Q3 Engineering Quantum Electronics Pub Date : 2022-03-01 DOI:10.1070/qel18006
O. Antipov, D. Kolker, A. Dobrynin, Yu.A. Getmanovskii, V. V. Sharkov, M. Chuvakova, A. Akhmatkhanov, V. Shur, I. Shestakova, S. Larin
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Abstract

The nonlinear optical frequency conversions of repetitively pulsed output of a 1941-nm Tm3+ : YAP laser pumped by a cw 1670-nm fibre laser are studied experimentally. Both mid-IR optical parametric oscillation (OPO) and second harmonic generation (SHG) are obtained in the same periodically poled MgO : LiNbO3 crystal with a fan-out domain design by tuning the grating period and temperature. The energy conversion efficiency of the degenerate OPO at 3820 – 3970 nm exceeds 43 % at a 0.5 kHz repetition rate, while the energy conversion efficiency of SHG at 970.5 nm reaches 34 %.
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扇出周期性极化MgO:LiNbO3晶体中光纤激光泵浦Tm3+:YAP激光器重复脉冲输出的中红外参量振荡和二次谐波产生
实验研究了连续波1670 nm光纤激光器泵浦的1941 nm Tm3+: YAP激光器重复脉冲输出的非线性光频转换。通过调节光栅周期和温度,在扇形结构的周期性极化MgO: LiNbO3晶体中获得了中红外参量振荡(OPO)和二次谐波(SHG)。在0.5 kHz重复频率下,简并OPO在3820 ~ 3970 nm处的能量转换效率超过43%,而SHG在970.5 nm处的能量转换效率达到34%。
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来源期刊
Quantum Electronics
Quantum Electronics 工程技术-工程:电子与电气
CiteScore
3.00
自引率
11.10%
发文量
95
审稿时长
3-6 weeks
期刊介绍: Quantum Electronics covers the following principal headings Letters Lasers Active Media Interaction of Laser Radiation with Matter Laser Plasma Nonlinear Optical Phenomena Nanotechnologies Quantum Electronic Devices Optical Processing of Information Fiber and Integrated Optics Laser Applications in Technology and Metrology, Biology and Medicine.
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