Title :
Wide Wavelength-Tunable and Low-Threshold Near-Infrared Optical Parametric Oscillator Using Periodically Poled MgO: LiNbO3 Crystal
Author :
Yao, Jianghong ; Li, Jie ; Zhang, Shuanggen ; Liu, Zhiwei ; Zhang, Guangyin ; Xu, Jingjun
Author_Institution :
Key Lab. of Weak Light Nonlinear Photonics, Nankai Univ., Tianjin, China
Abstract :
We have demonstrated a low-threshold and wavelength-tunable optical parametric oscillator using PPMgLN pumped by an acousto-optically Q-switched Nd:YAG laser with a repetition rate of 1 kHz. Wavelength-tunable character can be realized by temperature and grating period tuning method. A wavelength-tunable infrared (IR) output from 1445 nm to 1685 nm was obtained under the temperature tuning regime of 20degC~180degC. And the grating tuning regime of 29.0 mum~31.0 mum. The pump power threshold of 45 mW can be obtained.
Keywords :
diffraction gratings; laser beams; laser tuning; lithium compounds; optical parametric oscillators; optical pumping; thermo-optical devices; LiNbO3:MgO; YAG:Nd; grating period tuning method; low-threshold near-infrared optical parametric oscillator; periodically poled crystal; power 45 mW; size 29.0 mum to 31.0 mum; temperature 20 degC to 180 degC; wavelength 1445 nm to 1685 nm; wide wavelength-tunable oscillator; Biomedical optical imaging; Frequency conversion; Gratings; Laser radar; Laser tuning; Nonlinear optics; Optical pumping; Optical sensors; Optical tuning; Oscillators;
Conference_Titel :
Photonics and Optoelectronics, 2009. SOPO 2009. Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4412-0
DOI :
10.1109/SOPO.2009.5230295
