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Title: Temperature-tunable nanosecond optical parametric oscillator based on periodically poled MgO:LiNbO3
Authors: Li, H.P. 
Tang, D.Y.
Ng, S.P.
Kong, J.
Keywords: Diode-pumped laser
Optical parametric oscillators
Quasi-phase matching
Issue Date: Apr-2006
Citation: Li, H.P., Tang, D.Y., Ng, S.P., Kong, J. (2006-04). Temperature-tunable nanosecond optical parametric oscillator based on periodically poled MgO:LiNbO3. Optics and Laser Technology 38 (3) : 192-195. ScholarBank@NUS Repository.
Abstract: 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 1.5-1.7μm and 2.8-3.6μm, respectively, by changing the crystal temperature between room temperature and 170 °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. © 2004 Elsevier Ltd. All rights reserved.
Source Title: Optics and Laser Technology
ISSN: 00303992
DOI: 10.1016/j.optlastec.2004.11.010
Appears in Collections:Staff Publications

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