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Experimental Study of Photorefractive Adaptive Optical Heterodyne Detection System

Author: LuHuiZuo
Tutor: ShiShunXiang
School: Xi'an University of Electronic Science and Technology
Course: Physical Electronics
Keywords: Photorefractive effect - Mutually pumped phase conjugation coexist self-pumped Adaptive optical heterodyne detection Polarization state
CLC: TP274
Type: Master's thesis
Year: 2009
Downloads: 84
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Abstract


This paper studies the key technologies photorefractive adaptive optical heterodyne detection . Theoretical and experimental studies of self-pumped and mutually pumped coexistence phase of self- pumped and mutually pumped conjugate output characteristics and the dependence of the pump light incident parameters ; focused laser after transmission by the optical system , the state of polarization occurs changes in self-pumped phase conjugate reflectivity ; establishment of the polarization state of the reflected light of the laser beam by the beam splitter change equation photorefractive crystals Copper : KNSBN light intensity coupling coefficient on the polarized response equation , has been crystal light intensity coupling coefficient and the light incident on the angle of incidence on the beam splitter , and a numerical simulation results and experimental measurements of phase conjugate reflectivity is consistent with the incident beam splitter angle changes . Based on the photorefractive crystal Cu : KNSBN the self-pumped - mutually pumped coexistence effects of new photorefractive phase conjugate adaptive optical heterodyne detection system , experimental study of the impact of the local light intensity changes heterodyne system output signal and study a new type of photorefractive heterodyne detection system the heterodyne signal response time and the relationship of the pump light intensity . In this paper, research on photorefractive adaptive optical heterodyne detection system , laid the foundation for the practical application of optical heterodyne detection technology .

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