Author Affiliations
Abstract
1 Henan Key Laboratory of Laser and Optoelectronics Information Technology of Zhengzhou University, Zhengzhou 450052
2 Department of Physics, Linyi Normal University, Linyi 276005
3 Optoelectronics Information Science and Technology Laboratory, Institute of Lasers and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072
A widely and continuously tunable optical parametric generator (OPG) pumped by a 1064-nm acousto-optically Q-switched diode-end-pumped Nd:YAG laser based on MgO-doped periodically poled LiNbO3 crystal with a multigrating structure (29.2-30.4 micron) is reported. A broad continuous signal spectrum of 1513-1700 nm is obtained by changing the crystal grating periods from 29.2 to 30.4 micron and by tuning the crystal temperature from 30 to 180 Celsius degrees simultaneously. When the average pump power is 1.82 W with pulse duration of about 70 ns operating at a repetition rate of 10 kHz, the maximum signal output power of the periodically poled MgO-doped lithium niobate (PPMgLN) OPG is about 210 mW corresponding to the idler and total powers of 118.4 and 328.4 mW respectively.
190.4970 Parametric oscillators and amplifiers 140.3600 Lasers (tunable) 140.3070 Infrared and far-infrared lasers Chinese Optics Letters
2006, 4(9): 539