Optical: systems and elements – Optical modulator – Light wave directional modulation
Patent
1992-08-04
1994-07-12
Ben, Loha
Optical: systems and elements
Optical modulator
Light wave directional modulation
359311, 359313, 359314, 359285, 385 7, G02F 133
Patent
active
053293975
ABSTRACT:
An electronically tunable optical filter utilizing noncollinear acousto-optic interaction in an acoustically anisotropic, optically birefringent crystal. The directions of optical and acoustic waves are chosen so that the optical ray is collinear with the group velocity of the acoustic wave. The collinear beam configuration provides increased spectral resolution and reduced drive power.
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Ben Loha
Lester Evelyn A.
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