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