1 April 1999 High-speed and high-contrast incoherent-to-coherent converter that uses a GaAs single crystal
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Abstract
A new optically addressed spatial light modulator using a GaAs single crystal plate is developed for incoherent-to-coherent optical image converter. The device has the same structure as the Pockels readout optical modulator. The basic characteristics of the device are measured as half-wave voltage, 10.5 kV; sensitivity, 0.65 ?J/cm2 at visible light; and resolution, 5.6 line pairs/mm. The high-frame-rate (over 500 Hz) operation and high contrast ratio (over 700:1) are experimentally confirmed. The Fourier transforms of alphabetic characters are successfully performed and an application to joint transform correlator is demonstrated.
Youichi Bitou, Youichi Bitou, Yukihisa Osugi, Yukihisa Osugi, Takumi Minemoto, Takumi Minemoto, } "High-speed and high-contrast incoherent-to-coherent converter that uses a GaAs single crystal," Optical Engineering 38(4), (1 April 1999). https://doi.org/10.1117/1.602114 . Submission:
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