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1. AU1991087257 - Self aligning pigtail

Office Australia
Application Number 87257/91
Application Date 14.08.1991
Publication Number 1991087257
Publication Date 19.08.1993
Publication Kind A
IPC
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
24
Coupling light guides
42
Coupling light guides with opto-electronic elements
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
24
Coupling light guides
26
Optical coupling means
30
for use between fibre and thin-film device
G02B 6/42
G02B 6/30
CPC
G02B 6/30
G02B 6/4202
G02B 6/4203
Applicants United Technologies Corporation
Inventors Hockaday, Bruce D
Priority Data 621097 30.11.1990 US
Title
(EN) Self aligning pigtail
Abstract
(EN)
A method of aligning the optical axis in the core of an optical fiber with the optical axis in a waveguide imbedded in an integrated optical (IO) chip includes the step of coating an end face of the fiber with a layer of solder such that the solder coating covers the cladding portion of the fiber without covering the core portion of the fiber. The IO chip has a block of similar IO material mounted to a surface of the chip such that a planar end face of the chip is aligned with a planar end face of the block. The end faces of the block/chip are coated with a layer of solder such that the solder coating covers the entire end face of the block/chip without covering the waveguide. The coated fiber end face is brought in contact with the solder coated end face of the block/chip such that the core and waveguide are in approximate axial alignment. The solder layers on the fiber and block/chip end faces are then melted whereby the resulting surface tension forces are such that the optical axes of the core and waveguide are in precise alignment.

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