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Title: Nearly-noncritical phase matching in MgO:LiNbO3 optical parametric oscillators
Authors: Yao, Jian-Quan
Yu, Yi-Zhong
Wang, Peng
Wang, Tao
Zhang, Bai-Gang
Ding, Xin
Chen, Jin
Peng, H. J.
Kwok, Hoi-Sing
Keywords: Optical parametric oscillators and amplifiers
Frequency conversion
Harmonic generation
Issue Date: Sep-2001
Citation: Chinese physics letters, v. 18, September 2001, p. 1214-1217
Abstract: We have proposed and demonstrated a nearly-noncritical phase-matched (NCPM) optical parametric oscillation (OPO) in an MgO:LiNbO3 crystal with 5 mol% MgO by temperature tuning. By giving up perfect NCPM, the practical tuning range for the OPO is increased by two times. For the crystal, the operated temperature decreases with the phase-matching angle at degeneracy. With a cutting angle of 82° instead of the noncritical case of 90°, the tuning range was increased. In order to obtain a sufficiently high output pulse energy for both signal and idler throughout the entire tuning range, five sets of mirrors were used for the resonator. The tuning range of the OPO was 800 -- 1700 nm with temperatures tuning from 83°C to 224.2°C. The output energy was about 6.45 mJ with a conversion efficiency of nearly 13%. The bandwidth of the output was 1.0-1.1 nm.
Rights: Chinese Physics Letters © copyright 2001 IOP Publishing Ltd. The Journal's web site is located at
Appears in Collections:ECE Journal/Magazine Articles

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