Device including a component in alignment with a substrate-suppo

Details Device including a component in alignment with a substrate-suppo Device including a component in alignment with a substrate-suppo

1989-08-23

1990-10-30

Sikes, William L.

350 9615, 350 962, G02B 630

Patent

active

049664336

ABSTRACT:
In an optical device such as, e.g., an optical communications coupler or an optical gyroscope, a substrate-supported waveguide is aligned with a device component such as, e.g., an optical fiber or a photodetector. Optical alignment of such component relative to the waveguide is facilitated as the component is located in a preferentially etched groove in the substrate supporting the waveguide. In the case of an optical fiber connection, optical coupling is facilitated by a ledge structure overhanging a sloping etched wall of a groove holding the fiber. In the case of a photodetector, an etched groove may be essentially perpendicular to the direction of light propagation.

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patent: 4828358 (1989-05-01), Blonder
Applied Optics, vol. 17, No. 6, Mar. 15, 1978, "Optical Coupling from Fibers to Channel Waveguides Formed on Silicon", J. T. Boyd and S. Sriram, pp. 895-898.
Electronics Letters, vol. 12, No. 16, Aug. 5, 1976, "Optical Fibers and Channel Waveguides", H. P. Hsu and F. F. Milton, pp. 404-405.
Applied Optics, vol. 13, No. 2, Feb. 1974, "Thin-Film Laser-to-Fiber Coupler", L. P. Boivin, pp. 391-395.

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