Magneto-optical linear multichannel light modulator for recording of one-dimensional holograms

D. M. Abakumov

doi:10.1117/12.50422

1 November 1991 Magneto-optical linear multichannel light modulator for recording of one-dimensional holograms

D. M. Abakumov

Proceedings Volume 1621, Optical Memory and Neural Networks; (1991) https://doi.org/10.1117/12.50422
Event: Optical Memory and Neural Networks, 1991, Zvenigorod, Russian Federation

Abstract

The mathematical simulation of the switching processes in an MO linear light modulator with slitlike channels on high-coercive crystal of YFeO3 is carried out. For switching to be completed in 0.15 microsecond(s) it needs control current impulses of 0.8 - 1.2 A in amplitude and 0.1 microsecond(s) in duration that are experimentally confirmed. The realized laboratory model of the 32-channel controlled modulator for the system of information storage in the form of 1-D holograms admits the normal operation, provided switching rates are about 100 kbit/s in each channel. The higher rates of switching demand the use of special electrodes, crystal substrates, and cooling systems.

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D. M. Abakumov "Magneto-optical linear multichannel light modulator for recording of one-dimensional holograms", Proc. SPIE 1621, Optical Memory and Neural Networks, (1 November 1991); https://doi.org/10.1117/12.50422

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KEYWORDS

Modulators

Switching

Crystals

Molybdenum

Electrodes

Magnetism

Holograms

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