Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1996-12-04
1998-06-16
McGraw, Vincent P.
Optics: measuring and testing
For optical fiber or waveguide inspection
G01N 2184
Patent
active
057679576
ABSTRACT:
A device for testing multi-fiber optical cables includes a number of test stations into which an end of a cable under test is plugged. Some to the test stations provide for the attachment of an array connector, while others provide for the attachment of a number of discrete connectors. The optical input/output port of an OTDR unit is connected to each of the test stations through an optical switch, which connects this port with only one such station at a time. Within each station, signals from the optical switch are divided among a number of light paths by a splitter, which also returns signals from these light paths to the OTDR through the optical switch. The various light paths within each station include fiber optic jumpers which vary in length, so that a single test pulse from the OTDR is reflected back from a number of interfaces in the cable under test as a train of pulses.
REFERENCES:
patent: 4309105 (1982-01-01), Lebduska
patent: 5093568 (1992-03-01), Maycock
patent: 5179420 (1993-01-01), So et al.
patent: 5452071 (1995-09-01), Takeuchi
patent: 5530546 (1996-06-01), Barringer et al.
Barringer Wayne A.
DeCusatis Casimer M.
Davidge Ronald V.
International Business Machines - Corporation
McGraw Vincent P.
Tomlin Richard A.
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