Light modulating device array

Details Light modulating device array Light modulating device array

1987-09-10

1989-06-20

Lee, John D.

350 9613, G02B 610, G02F 100

Patent

active

048404470

ABSTRACT:
A light modulating device array formed in a surface of a crystal plate with an electrooptic effect includes an optical input coupling waveguide portion receiving a laser beam from a laser source, a tapered waveguide array portion for dividing a light beam from the optical input coupling waveguide portion into a plurality of parts, and a plurality of light modulating parts juxtaposed in a predetermined direction and receiving light beams from the tapered waveguide array portion. Each of the light modulating parts includes an input waveguide portion and a pair of modulating waveguide portions formed by bifurcating the input waveguide portion, so as to form a Mach-Zehnder type waveguide structure. Further, each light modulating part includes electrodes for controlling the modulating waveguide portions, to vary the intensity of light outputted from the light modulating part, in accordance with a voltage applied to each electrode. Selected ones of the electrodes includes in this array are connected to each other, to prevent adjacent light modulating parts from interacting on each other.

REFERENCES:
patent: H353 (1987-10-01), Taylor
patent: 4364633 (1982-12-01), Verber et al.

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