Optical fiber splicing using leaky mode detector

Details Optical fiber splicing using leaky mode detector Optical fiber splicing using leaky mode detector

1984-05-30

1986-10-21

Sikes, William L.

350 9620, 350 9615, G02B 638, G02B 600

Patent

active

046182128

ABSTRACT:
Optical fiber splicing method and apparatus. The method comprises aligning the ends of the fibers to be spliced by a procedure comprising coupling radiation into one of the fibers, the transmitting fiber, stripping nonfundamental mode radiation from the other fiber, the receiving fiber, and detecting the stripped radiation in such a manner that a substantial fraction of the detected radiation is lowest order nonfundamental mode (LP.sub.11) radiation for at least some relative position of the fiber ends. By adjusting the relative position of the fiber ends to minimize the detected power, the fibers are aligned. The procedure not only permits accurate alignment but can also be used to determine the splice loss. Apparatus for the practice of the method is also disclosed.

REFERENCES:
patent: 4368543 (1983-01-01), Hasegawa
patent: 4475789 (1984-10-01), Kahn
"Guiding Properties of Fibers", S. E. Miller and A. G. Chynoweth, Optical Fiber Telecommunications, 1979, pp. 37-100.
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"New Optical Monitoring Method for Arc-Fusion Splice of Single-Mode Fibres and High-Precision Estimation of Splice Loss", Y. Kato et al., Electronics Letters, vol. 18, No. 22, Oct. 1982, pp. 972-973.
"Integrating Cube Scattering Detector", A. R. Tynes, Applied Optics, vol. 9, No. 12, Dec. 1970, pp. 2706-2710.
Technical Digest of Arc Fusion Splicer for Single-Mode Fiber Model FSM-04S, T. Arai et al., Jun. 1983.
"Simple, Low-Loss Joints Between Single-Mode Optical Fibers", C. G. Someda, Bell System Technical Journal, vol. 52, No. 4, Apr. 1973, pp. 583-596.
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