DocumentCode :
1766187
Title :
Compact Efficient 2.1- 
m Intracavity MgO:PPLN OPO With a VBG Output Coupler
Author :
Jing Guo ; Guangyuan He ; Baofu Zhang ; Xionghua Zheng ; Zhongxing Jiao ; Biao Wang
Author_Institution :
Sch. of Phys. & Eng., Sun Yat-sen Univ., Guangzhou, China
Volume :
27
Issue :
6
fYear :
2015
fDate :
March15, 15 2015
Firstpage :
573
Lastpage :
576
Abstract :
We present a compact efficient intracavity MgO:PPLN optical parametric oscillator (OPO) with a volume Bragg grating output coupler pumped by a Q-switched Nd:YVO4 laser operating in 2.1-μm region. Narrowband 2.1-μm output power of 3.7 W is achieved with a pulse duration <;2 ns at 15-kHz repetition rate. A maximum conversion efficiency of 19.5% from laser diode (LD) to 2.1 μm is obtained at 17.5-W LD pump power. The 2.1-μm beam quality factors M2 of 1.85 and 2.37 in horizontal and vertical directions are obtained. To the best of our knowledge, the efficiency is the highest ever achieved from an intracavity OPO in 2-μm region.
Keywords :
Bragg gratings; Q-switching; laser beams; laser cavity resonators; lithium compounds; magnesium compounds; neodymium; optical couplers; optical parametric oscillators; optical pumping; solid lasers; yttrium compounds; LD pump power; LiNbO3:MgO; M2; Q-switched Nd:YVO4 laser; VBG output coupler; YVO4:Nd; beam quality factors; compact efficient intracavity MgO:PPLN OPO; compact efficient intracavity MgO:PPLN optical parametric oscillator; horizontal directions; laser diode; maximum conversion efficiency; narrowband output power; power 17.5 W; power 3.7 W; pulse duration; vertical directions; volume Bragg grating output coupler; wavelength 2.1 mum; Cavity resonators; Educational institutions; Laser beams; Laser excitation; Measurement by laser beam; Power generation; Pump lasers; Cavity resonators; Optical frequency conversion; Solid state lasers; cavity resonators; compact; efficient; optical frequency conversion; volume Bragg grating;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2014.2384512
Filename :
6994227
Link To Document :
