Nearly-Noncritical Phase Matching in MgO:LiNbO3 Optical Parametric Oscillators

姚建铨; 于意仲; 王鹏; 王涛; 张百钢; 丁欣; 陈进; H.J.Peng; H.S.Kwok

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Nearly-Noncritical Phase Matching in MgO:LiNbO3 Optical Parametric Oscillators

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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 - L1 nm.

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《中国物理快报：英文版》 |2001年第9期|1214-1217|共4页
作者
姚建铨; 于意仲; 王鹏; 王涛; 张百钢; 丁欣; 陈进; H.J.Peng; H.S.Kwok;
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Institute of Laser and Opto-electronics;

Tianjin University,Tianjin 300072;

Institute of Laser and Opto-electronics;

Tianjin University,Tianjin 300072;

Institute of Laser and Opto-electronics;

Tianjin University,Tianjin 300072;

Institute of Laser and Opto-electronics;

Tianjin University,Tianjin 300072;

Institute of Laser and Opto-electronics;

Tianjin University,Tianjin 300072;

Institute of Laser and Opto-electronics;

Tianjin University,Tianjin 300072;

Institute of Laser and Opto-electronics;

Tianjin University,Tianjin 300072;

Department of Electrical and Electronics Engineering;

Hong Kong University of Science and Technology, Clear Water Bay,Hong Kong;

Department of Electrical and Electronics Engineering;

Hong Kong University of Science and Technology, Clear Water Bay,Hong Kong;

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中图分类物理学;
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Nearly-Noncritical Phase Matching in MgO:LiNbO3 Optical Parametric Oscillators

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