Method and system for calibrating a diffractive grating modulator
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United States of America Patent
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Nov 12, 2002
Grant Date -
N/A
app pub date -
Mar 6, 2000
filing date -
Mar 6, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A diffractive grating modulator system, includes: a diffractive grating modulator active to produce a plurality of output orders of diffraction; an illumination source for directing light onto the diffractive grating modulator; an output system arranged to receive one of the orders of diffraction from the diffractive grating modulator; a detector arranged to receive a different one of the orders of diffraction from the diffractive grating and to produce a signal representing the output of the diffractive grating modulator; an electronic driving system responsive to a data stream for operating the diffractive grating modulator; and a feedback system connected to the detector and the electronic driving system and responsive to the signal for calibrating the diffractive grating modulator.
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