Laser & Optoelectronics Progress, Volume. 50, Issue 11, 111902(2013)
Competition of Acousto-Optical Polarization Rotation and Second Harmonic Generation in Periodically Poled Lithium Niobate
Wave-coupling equations including acousto-optical (AO) polarization rotation and frequency doubling in periodically poled lithium niobate (PPLN) are proposed. The acoustic wave could either be induced from an external transducer or self-generated in PPLN driven with a cross-field radio frequency field. The proper reciprocal of PPLN is used to compensate the second harmonic generation (SHG) wave-vector mismatching, while phonon with suitable frequency may affect the pump polarization by scattering photons. Numerical simulation shows that there is a competition between the AO polarization rotation and SHG in PPLN under the phase-matching condition. The influences of the acoustic wave intensity on the polarization or intensity of three waves are studied.
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Kong Yan, Zhu Huaxin, Gao Shumei. Competition of Acousto-Optical Polarization Rotation and Second Harmonic Generation in Periodically Poled Lithium Niobate[J]. Laser & Optoelectronics Progress, 2013, 50(11): 111902
Category: Nonlinear Optics
Received: Jul. 3, 2013
Accepted: --
Published Online: Oct. 20, 2013
The Author Email: Yan Kong (ykong80@163.com)