Abstract
We present a double-pass scheme for high-efficiency, high-power, second-harmonic generation (SHG) in a single MgO-doped periodically poled stoichiometric lithium tantalate (MgO:PPSLT) crystal. The device is pumped by a single-frequency, continuous-wave fiber amplifier laser system at a wavelength of 1091 nm. For the double-pass scheme, a conversion efficiency of 60% and a harmonic power of 12.8 W at a wavelength of 545.5 nm with a high beam quality of () is achieved. Compared to single-pass SHG, a double-pass enhancement factor of more than two is observed at the highest fundamental pump power.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
G. K. Samanta, S. Chaitanya Kumar, Kavita Devi, and M. Ebrahim-Zadeh
Opt. Lett. 35(20) 3513-3515 (2010)
S. Chaitanya Kumar, G. K. Samanta, Kavita Devi, and M. Ebrahim-Zadeh
Opt. Express 19(12) 11152-11169 (2011)
S. Chaitanya Kumar, G. K. Samanta, and M. Ebrahim-Zadeh
Opt. Express 17(16) 13711-13726 (2009)