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High‐power , continuous‐wave optical parametric oscillator based on MgO : sPPLT crystal
Author(s) -
Deng Lihua,
Yu Yongji,
Chang Aolei,
Chen Jiansheng,
Wang Peng,
Tan Huiming,
Wu Xiaodong,
Yao Wenming,
Gao Jing
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32852
Subject(s) - optical parametric oscillator , materials science , grating , continuous wave , energy conversion efficiency , signal (programming language) , optics , power (physics) , crystal (programming language) , laser , optoelectronics , slope efficiency , fiber laser , wavelength , physics , quantum mechanics , computer science , programming language
A high power, high‐conversion‐efficiency, and tunable continuous‐wave external cavity pump singly resonant optical parametric oscillator (OPO) was proposed in this article. This OPO was based on multi‐grating MgO‐doped stoichiometric periodically poled LiTaO 3 (MgO:sPPLT) and pumped with 532 nm continuous wave fiber laser. The MgO:sPPLT‐OPO could provide near‐infrared radiation across 821–879 nm in the signal and 1352–1515 nm in the idler within four grating periods of 8.3–8.6 μm. When the pump power was 5.4 W, the maximum pump‐to‐signal conversion efficiency could reach 57.5% at 821 nm. The output power extended to 5.9 W in each period when the pump power reaches 13.6 W.