Temperature-tunable nanosecond optical parametric oscillator based on periodically poled MgO: LiNbO3

被引：28

作者：

Li, HP ^{[1
]}

Tang, DY ^{[1
]}

Ng, SP ^{[1
]}

Kong, J ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Photon Res Ctr, Singapore 639798, Singapore

来源：

OPTICS AND LASER TECHNOLOGY | 2006年 / 38卷 / 03期

关键词：

optical parametric oscillators; quasi-phase matching; diode-pumped laser;

D O I：

10.1016/j.optlastec.2004.11.010

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a compact quasi-phase-matched optical parametric oscillator (OPO) using periodically poled MgO-doped LiNbO3 with different grating periods. The OPO is pumped by a diode-pumped passively Q-switched Nd:YAG laser providing 4.8-ns pulses at 5.4-kHz repetition rate. The OPO generates signal and idler wavelengths tunable in the ranges of 1.5-1.7 mu m and 2.8-3.6 mu m, respectively, by changing the crystal temperature between room temperature and 170 degrees C. The temperature-dependent Sellmeier equation for the extraordinary refractive index of MgO-doped LiNbO3 is modified in the Mid-IR region, which gives an accurate prediction of the experimental temperature-tuning results. The linewidth of the signal wave is in the range of 0.5-1.0 nm without any controlling element. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：192 / 195

页数：4

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