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Manufacturing Matched Fiber Optical Arrays

IP.com Disclosure Number: IPCOM000075209D
Original Publication Date: 1971-Aug-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Casler, DH: AUTHOR

Abstract

In an optical read head using continuous optical fibers, it is necessary to obtain precise alignment of opposing fiber elements separated by a small gap. This is achieved using a channeled base member 2 having channels or troughs 4 which contain the individual continuous glass fibers 6. The fibers are potted in the channels 4 and caps 3 are secured in position to form a unitary composite structure. Thereafter, at least two holes 7 (one of which is shown) are drilled through base member 2 and parallel to channels 4 for the later accommodation of locating or alignment pins. The completed assembly is then cut along a line 5 so that the plane of the cut is perpendicular to channels 6.

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Manufacturing Matched Fiber Optical Arrays

In an optical read head using continuous optical fibers, it is necessary to obtain precise alignment of opposing fiber elements separated by a small gap. This is achieved using a channeled base member 2 having channels or troughs 4 which contain the individual continuous glass fibers 6. The fibers are potted in the channels 4 and caps 3 are secured in position to form a unitary composite structure. Thereafter, at least two holes 7 (one of which is shown) are drilled through base member 2 and parallel to channels 4 for the later accommodation of locating or alignment pins. The completed assembly is then cut along a line 5 so that the plane of the cut is perpendicular to channels 6.

The surfaces created by the cut are then polished and assembled confronting one another, using closely fitting locating pins in drilled openings 7 and spacers, not shown, to uniformly separate the assembled halves. Each of the fibers severed along the plane of the cut 5 is now accurately aligned across the gap established by the spacers.

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