Quasi-phase-matched MgO:LiNbO3 optical parametric oscillator pumped by a compact single-frequency passively Q-switched Nd:YAG laser

Deyuan Shen; Ding Yuan Tang; Siu Chung Tam; Takao Kobayashi

doi:10.1117/12.446599

29 October 2001 Quasi-phase-matched MgO:LiNbO₃ optical parametric oscillator pumped by a compact single-frequency passively Q-switched Nd:YAG laser

Deyuan Shen, Ding Yuan Tang, Siu Chung Tam, Takao Kobayashi

Author Affiliations +

Proceedings Volume 4595, Photonic Systems and Applications; (2001) https://doi.org/10.1117/12.446599
Event: International Symposium on Photonics and Applications, 2001, Singapore, Singapore

Abstract

A compact and efficient diode-array pumped high power passively Q-switched N:YAG laser has been used to pump a quasi-phase-matched PPMgLN optical parametric oscillator. Stable laser pulses of duration of 3.0 ns, energy of 69.3 micro-joule and repetition rate of 7.0 kHz were generated from the passively Q-switched Nd:YAG laser at an incident pump power of 6.8 W. The periodically poled MgO-doped LiNbO₃ has an interaction length of 30 mm and a thickness 0.5-mm. The OPO generates signal and idler wavelengths tunable in the range of 1.48-1.59 micron and 3.78-3.21 micron, respectively, by using seven different poling periods. The measured signal output power was approximately 140 mW at an average incident pump power of 485 mW. The OPO was operated at around room temperature and no photorefractive effect was found.

Citation Download Citation

Deyuan Shen, Ding Yuan Tang, Siu Chung Tam, and Takao Kobayashi "Quasi-phase-matched MgO:LiNbO₃ optical parametric oscillator pumped by a compact single-frequency passively Q-switched Nd:YAG laser", Proc. SPIE 4595, Photonic Systems and Applications, (29 October 2001); https://doi.org/10.1117/12.446599

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KEYWORDS

Optical parametric oscillators

Nd:YAG lasers

Q switched lasers

Chromium

Crystals

YAG lasers

Mirrors

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