Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1984-12-03
1988-05-10
Wan, Gene
Optics: measuring and testing
Range or remote distance finding
With photodetection
350 9621, 350320, 356 731, G02B 626
Patent
active
047430869
ABSTRACT:
A coupling device for forming optically efficient end-to-end connections between optical fibers having a common core and cladding geometry but different relative dimensions and cross sections includes forming a segment of optical fiber having the same general geometry of the fibers to be coupled but which varies between relatively enlarged and reduced cross sections along its length. The coupling device is severed along its length at appropriate points to match the relative cross sections of each fiber to be coupled to thereby allow a butt type coupling between optical fibers of the same general geometry but with differing cross sectional areas. The coupling devices may be manufactured by drawing a starting fiber having the same geometry of the fibers to be coupled and varying the drawing speed to create enlarged and reduced cross section portions. The starting fiber may then be severed at the reduced cross section portions to provide the coupling device.
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Caufield Francis J.
Lee James C.
Polaroid Corporation
Wan Gene
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