Self-aligned optical waveguide to laser structure and method for

Details Self-aligned optical waveguide to laser structure and method for Self-aligned optical waveguide to laser structure and method for

1992-04-21

1993-11-02

Lee, John D.

Optical waveguides

With optical coupler

Particular coupling structure

385 49, 385 51, G02B 630

Patent

active

052590496

ABSTRACT:
Automatic alignment of an optical waveguide to a ridge waveguide laser is accomplished by transferring the ridge structure of the laser to a substrate by etching a mirror groove. The transferred ridge structure serves as a base for the deposition of waveguide layers. The thickness of the waveguide layers are controlled during the deposition such that the waveguide core is laterally and vertically aligned to the lasing active layer of the laser structure.

REFERENCES:
patent: 3774987 (1973-11-01), Boivin
patent: 4744619 (1988-05-01), Cameron
patent: 5073002 (1991-12-01), Hockaday
"Full-Wafter Technology--A New Approach to Large-Scale Laser Fabrication and Integration", by P. Vettiger, et al., IEEE Journal Quantum Electron., vol. 27, Jun. 1991, pp. 1319-1331.
"Adjusting the Height of Heat Sink Heterojunction Lasers to Meet up with Optical Couplers and Waveguides", by G. L. Hutchins, IBM Technical Disclosure bulletin, vol. 17, No. 10, Mar. 1975, p. 3134.
"Offset Laser to Groove Waveguide Coupler", by L. D. Comerford, et al., IBM Technical Disclosure Bulletin, vol. 20, No. 4, Sep. 1977, pp. 1606-1608.
Electronics Letters, vol. 26, No. 2, Jan. 18, 1990, pp. 142-143, "High Performance Buried Ridge DFB Lasers Monolithically Integrated with Butt Coupled Strip Loaded Passive Waveguides for OEIC".
"Laser Print Head Employing a Plurality of Lasers per Channel", by J. D. Crow, IBM Technical Disclosure Bulletin, vol. 20, No. 6, Nov. 1977, pp. 2443-2444.
"Interconnection of Optical Fibers to Plan Optical Integrated Circuitry" by E. A. Ash, IBM Technical Disclosure Bulletin, vol. 13, No. 9, Feb. 1971, pp. 2925-2926.
A proposal from the book, "Integrated Optics: Theory and Technology", by R. G. Hunsperger, Springer Series in Optical Sciences, Second edition, Springer Verlag. Sep. 1991.

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