High efficiency and high beam quality 3.467-μm KTA extracavity optical parametric oscillator

✍ Scribed by Qibing Sun; Hongjun Liu; Nan Huang; Chi Ruan; Shaolan Zhu; Wei Zhao

• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 235 KB
• Volume: 53
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.26247

✦ Synopsis

Abstract

An efficient single resonant extracavity optical parametric oscillator is demonstrated based on a Type II noncritical phase matching KTA crystal.Under a pump power of 0.6 W and a pulse width of 13 ns, the average power of 86 mW at 3.467 μm is obtained with the pulse width of 6 ns and repetition rate of 100 Hz, corresponding to a conversion efficiency as high as 14% from 1.064 to 3.467 μm. The beam spatial profile for 3.467 μm is near TEM~00~ mode. The average power of 123 mW is also obtained with a multitransverse mode at the repetition rate of 200 Hz and an average power of 2.3 W of the pump laser. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2204–2207, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26247