Optical coupling device

Details Optical coupling device Optical coupling device

1995-04-24

1996-08-20

Ngo, John

Optical waveguides

With optical coupler

Particular coupling structure

385 83, G02B 630

Patent

active

055486738

ABSTRACT:
In an optical coupling device for optically coupling an optical fiber to an optical waveguide formed on a crystalline substrate, the optical fiber is placed in a V-shaped groove formed on the substrate by anisotropic etching. The V-shaped groove is not linearly continuous, but intermittent to intermittently support the optical fiber. The intermittence of the V-shaped groove decreases undesired width expansion of the V-shaped groove. For this structure, a light axis alignment between the optical fiber and the optical waveguide is enhanced.

REFERENCES:
patent: 4880494 (1989-11-01), Kaukeinen et al.
Sheem et al; Integrated and guided-waves optics technical Digest; Incline Village, NY U.S.A. (28-30 Jan. 1980);"High Efficiency Single Mode Fiber/Channel Waveguide Flip Chip Coupling".
Patent Abstracts of Japan, vol. 4, No. 107 (P-21) 31 Jul. 1980 JP-A-55065913 (NTT) 17 May 1980.
Applied Optics, vol. 13, No. 12, Feb. 1974, pp. 391 to 395.
Integrated Photonics Research, TuD 6-1 and TuD 6-2, pp. 166 and 167, 1991.
The Spring Session In the Electron Information And Communication Academic Society, 1993, pp. 4-315

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