Integrated, micro-optical device

Details Integrated, micro-optical device Integrated, micro-optical device

Filed on

1983-08-24

Date issued

1987-02-03

Examiner

Sikes, William L.

Other Related Categories

350 9612, G02B 612

Type

Patent

Status

active

Patent number

046405747

Description

ABSTRACT:
An integrated, micro-optical device for use in combination with a monomode fiber, a laser and a photodiode. A common substrate includes means for connecting the fiber, laser and photodiode to the device. A film waveguide is disposed on the substrate and presents a first beam path between the means for connecting the fiber and the means for connecting the photodiode. A refraction grating is disposed in the first beam path of the film waveguide. A second beam path is present by the film waveguide between the means for connecting the laser and the refraction grating. The refraction grating is constructed and positioned on the substrate so that the refraction grating transmits radiation coming from the fiber toward the photodiode and deflects radiation coming from the laser in the direction toward the fiber.

REFERENCES:
patent: 3301625 (1967-01-01), Ashkin et alf.
patent: 3719411 (1973-03-01), Midwinter
patent: 3868589 (1975-02-01), Wang
patent: 3902133 (1975-08-01), Watts
patent: 3982810 (1976-09-01), Tamir et al.
patent: 4273445 (1981-06-01), Thompson et al.
patent: 4320475 (1982-03-01), Leclerc et al.
patent: 4360921 (1982-11-01), Scifres
"Photodetector Elements and Relif-Type Diffraction Gratings in Thin Films of As.sub.2 S.sub.3 for Integrated Optics" Andriesh et al., Sov. J. Quantum Electron, 8(5) (May 1978).
"Integrated-Optic Wavelength Multi- and Demultiplexers Using a Chriped Grated and Ion-exchanged Waveguide" Suhara et al., Applied Optics, vol. 21, No. 12, (15 Jun. 1982).

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