Attaching optical fibers to integrated optic chips

Details Attaching optical fibers to integrated optic chips Attaching optical fibers to integrated optic chips

1991-10-11

1993-07-27

Lee, John D.

Optical waveguides

With optical coupler

Particular coupling structure

385 50, G02B 630

Patent

active

052316831

ABSTRACT:
A method of attaching an optical fiber to an IOC includes the step of preparing the IOC for attachment by utilizing a dicing saw to cut into the IOC at a depth less than the thickness of the IOC, the cut forming a surface which is normal or at an angle with respect to an optical axis of the waveguide, such step of cutting having the additional result of optically polishing the surface. A portion of the IOC between the initial cut and an end of the IOC is then progressively removed by a series of cuts using the dicing saw, the cuts are to a predetermined depth which is less than the thickness of the IOC, and greater than the radius of the fiber so as to insure proper coupling of the IOC waveguide and fiber core, such series of cuts producing a stepped surface in the IOC. Next, the fiber core is optically aligned with the waveguide by translational and rotational positioning of the fiber end face adjacent to the surface and above the stepped surface. The fiber end face is then secured to the cut surface with adhesive or other suitable means, and the fiber is attached to the stepped surface with adhesive or other suitable means.

REFERENCES:
patent: 4744619 (1988-05-01), Cameron
patent: 4796975 (1989-01-01), Lukas et al.
patent: 4871226 (1989-10-01), Courtney et al.
patent: 4984861 (1991-01-01), Suchoski, Jr. et al.
patent: 5071215 (1991-12-01), Hockaday
patent: 5073002 (1991-12-01), Hockaday

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