Optical package with improved fiber alignment fixture

USH551H · kind H · statutory invention registration

Assignees

• American Telephone and Telegraph, Co. · US
• Bell Telephone Laboratories, Inc. · US
• AT&T Technologies Incorporated · US

Inventors

• Ghazi M. Chaoui · Macungie, US
• Charles R. Fegley · Laureldale, US
• Jan Lipson · Cupertino, US
• Ralph Salvatore Moyer · Shillington, US
• Thomas Stanley Stakelon · Allentown, US

Key dates

• Grant date: Dec 6, 1988

Classification

• Technology area (CPC —): General

Abstract

An optical package includes a two-piece fiber subassembly which allows for separate axial and radial alignment of the fiber to the active optical device. The subassembly consists of an inner ferrule encasing the fiber and an outer sleeve which holds the ferrule. The ferrule is moved axially within the sleeve to perfect the axial alignment of the fiber and the device. The sleeve includes a number of openings around its circumference to expose the ferrule. Once axial alignment is achieved, the outer sleeve is attached to the ferrule through these openings to fix the axial alignment.