Fiber-optic alignment with detector IC

Details Fiber-optic alignment with detector IC Fiber-optic alignment with detector IC

2007-05-15

2007-05-15

Font, Frank G. (Department: 2883)

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

C385S014000, C385S015000, C385S052000, C385S088000, C385S090000, C385S091000, C385S092000

Reexamination Certificate

active

11235056

ABSTRACT:
A method for connecting optical signals carried by optical fibers between an optical encoder readhead and an optical signal processing IC having a plurality of photodetector portions arranged in a photodetector configuration. The optical signal processing IC is fixed to a substrate at a first position and orientation. Then, a reference-surface block including at least one reference surface is fixed to the substrate in a second orientation and position based on the first position and orientation. A fiber-optic end piece is provided, which has at least one corresponding-reference surface and a plurality of optical fiber locating features that are arranged relative to the corresponding-reference surface. A plurality of the optical fibers are fixed to the plurality of optical fiber locating features to provide a coupling configuration of optical fiber ends that nominally matches the photodetector configuration. Finally, the corresponding-reference surface of the fiber-optic end piece is mounted against the reference surface of the reference-surface block such that the coupling configuration abuts the photodetector configuration.

REFERENCES:
patent: 4695120 (1987-09-01), Holder
patent: 5123067 (1992-06-01), Avelange et al.
patent: 5241614 (1993-08-01), Ecker et al.
patent: 5883395 (1999-03-01), Krause
patent: 6906315 (2005-06-01), Tobiason
patent: 2003/0072537 (2003-04-01), Eichenberger et al.

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