G - Physics – 01 – B
Patent
G - Physics
01
B
33/32, 88/97
G01B 9/00 (2006.01) G02B 6/38 (2006.01) G02B 6/42 (2006.01)
Patent
CA 1115944
L. M. Borsuk-8 METHOD AND APPARATUS FOR DETECTING OPTIMUM ALIGNMENT OF OPTICAL FIBERS IN A CONNECTOR ARRANGEMENT . ABSTRACT OF THE DISCLOSURE A method and apparatus for detecting the lateral align- ment of abutting optical fibers in a connector arrangement. A connector assembly having eccentric sleeves for effecting lat- eral alignment is shown. A light beam is introduced at an angle through the cladding of an optical fiber adjacent to its interface surface within one connector half. The light beam is launched into the fiber cladding at a plurality of angles using a light scattering bead of resin. The outside diameter of the ferrule assembly is concentric with the optical fiber and the connector shell externally, once the lateral alignment is effected. A termination fixture includes an objective lens which projects a magnified image of the optical fiber interface surface onto an aperture plate having an opening or window therein substantially the same diameter as the magnified optical fiber core, transmits substantially only light emitted from the cladding interface surface. A light-to-electric signal trans- ducer (photo-diode for example) detects the illuminated and magnified image of the optical fiber cladding, A light inten- sity null detected by the transducer is indicative of proper alignment of the optical fiber with respect to the outside dia- meter of the connector shell and ferrule assembly.
344147
Itt Industries Inc.
Smart & Biggar
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