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Far-field characterization of diode lasers with standard vidicons

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Abstract

An experimental apparatus employing a standard sulfide imaging tube to characterize the real-time far-field patterns of laser diodes is described. The proposed measuring technique provides a dynamic range of 25 dB and an angular resolution of 0.1°. Compensation techniques for the tube’s nonuniform gamma factor and optical linearization of the tube’s inherent angular distortion are described.

© 1983 Optical Society of America

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