Optical digital-to-analog converter

Coded data generation or conversion – Analog to or from digital conversion – Using optical device

Reexamination Certificate

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C250S2140RC

Reexamination Certificate

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07061414

ABSTRACT:
An optical digital-to-analog conversion is realized by employing either a continuous wave or pulsed laser optical signal. The laser optical signal is split into a plurality of mutually coherent optical beams, which are phase shift modulated by bits of a digital data sequence to be converted to an analog signal. The phase shift modulated optical beams are recombined to realize the desired digital-to-analog converted optical signal.

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