DocumentCode :
83019
Title :
Power Scaling in a Diode-End-Pumped Multisegmented Nd:YVO 
Laser With Double-Pass Power Amplification
Author :
Yu-Jen Huang ; Wei-Zhe Zhuang ; Kuan-Wei Su ; Yung-Fu Chen
Author_Institution :
Dept. of Electrophys., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Volume :
21
Issue :
1
fYear :
2015
fDate :
Jan.-Feb. 2015
Firstpage :
226
Lastpage :
231
Abstract :
We demonstrate a high-power master oscillator power amplifier with the double-pass configuration based on the specially designed multisegmented Nd:YVO4 crystals. A powerful mathematical technique on the basis of the Fourier eigenfunction expansion method is developed for precisely calculating the temperature distribution inside the gain medium. A seed Nd:YVO4 oscillator under dual-end pumping is subsequently constructed for efficiently emitting the output power of up to 50 W. Moreover, under a total incident pump power of 244 W at 808 nm, as high as 108 W of the output power at 1064 nm is further generated in our developed master oscillator power amplifier system. Theoretical and experimental results clearly reveal that the gain medium with multiple doping concentrations is practically valuable for constructing a high-power end-pumped laser without bringing in significantly thermal effects.
Keywords :
Fourier transform optics; doping profiles; eigenvalues and eigenfunctions; neodymium; optical pumping; solid lasers; temperature distribution; yttrium compounds; Fourier eigenfunction expansion method; YVO4:Nd; diode-end-pumped multisegmented laser; doping concentrations; double-pass power amplification; dual-end pumping; gain medium; high-power end-pumped laser; high-power master oscillator power amplifier; incident pump power; mathematical technique; output power; power 108 W; power 244 W; power scaling; seed oscillator; temperature distribution; wavelength 1064 nm; wavelength 808 nm; Crystals; Laser excitation; Oscillators; Power amplifiers; Power generation; Pump lasers; Semiconductor lasers; Diode-pumped laser; high-power laser; master oscillator power amplifier; multisegmented laser crystal;
fLanguage :
English
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
1077-260X
Type :
jour
DOI :
10.1109/JSTQE.2014.2336541
Filename :
6849936
Link To Document :
