Laser & Optoelectronics Progress, Volume. 48, Issue 12, 121602(2011)
Numerical Calculation of Conversion Efficiency in Type Ⅰ Frequency-Doubling on LBO Crystal
The walk-off angle, interaction angle and refractive index are calculated with numerical methods under type I frequency-doubling phase-matching direction, while the fundamental frequency wavelength is 1064 nm in LBO crystal. The walk-off angle of the fundamental frequency wavelength is 0°~1.35°. The walk-off angle of the doubling frequency wavelength is 0°~1.52°. The interaction angle between fundamental frequency and doubling frequency waves is 0°~1.15°. The coupled wave equations and the conversion efficiency are numerical calculated considering the change of walk-off angle, the interaction angle and the refractive index. The results show that the conversion efficiency has maximum value (3.35%) when the phase matching direction is about (42.2°, 19°). In addition, the conversion efficiency is proportional to the square of the crystal length.
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Zhang Xin, Wang Aikun, Xue Jianhua, Song Zhen. Numerical Calculation of Conversion Efficiency in Type Ⅰ Frequency-Doubling on LBO Crystal[J]. Laser & Optoelectronics Progress, 2011, 48(12): 121602
Category: Materials
Received: Jun. 21, 2011
Accepted: --
Published Online: Oct. 11, 2011
The Author Email: Xin Zhang (zhxin-2486@163.com)