Improved apparatus and method for aligning optical fibers

Details Improved apparatus and method for aligning optical fibers Improved apparatus and method for aligning optical fibers

G - Physics

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G02B 6/25 (2006.01) G02B 6/12 (2006.01) G02B 6/26 (2006.01) G02B 6/28 (2006.01) G02B 6/30 (2006.01) G02B 6/35 (2006.01) G02B 6/38 (2006.01) G02B 6/42 (2006.01) H04N 7/22 (2006.01) H04Q 3/52 (2006.01)

Patent

CA 2141824

2141824 9304388 PCTABS00020 The invention is an improvement in an optical fiber alignment apparatus of the type having a pair of optically-opposed fibers (17, 19), means (25) associated with one of the fibers (17 or 19) for generating an alignment signal, means (31) associated with the other fiber (19 or 17) for alignment-sensitive detection of the alignment-signal, and means (33) responsive to such detection to adjust relative positions of the fibers (17, 19). In the improvement, the means (25) for generating the alignment signal comprises an array (27) of radiation-emitting devices (REDs) (29). Radiation from the REDs (29) in an array (27) associated with a particular fiber (17 or 19) is received in a radiation guide (45, 45a) of the other fiber (19 or 17) and individually measured. The position of the other fiber (19 or 17) is adjusted until radiation received from each RED (29) is substantially equal to that received from each other RED (29) in the array (27). In one arrangement, the radiation guide (45, 45a) is part of the signal-carrying fiber (17 or 19). In another arrangement, the radiation guide (45, 45a) is part of a separate aligning fiber (53) mounted adjacent to and movable with the signal-carrying fiber (17 or 19).

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