Interferometric, self-homodyne optical receiver and method and o

Optics: measuring and testing – By particle light scattering – With photocell detection

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25022727, G01B 902

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active

053194381

ABSTRACT:
An interferometric, self-homodyne optical receiver is disclosed for detecting and demodulating phase modulated optical signals without requiring a local oscillator normally associated with coherent optical receivers. The self-homodyne receiver includes an interferometer having a phase modulator optically coupled to one channel of the interferometer and a phase-locked arrangement providing electrical signals which control the phase modulator and phase of one channel of the interferometer with respect to the other channel.

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