Simultaneous data communication and fiber perturbation detection

Details Simultaneous data communication and fiber perturbation detection Simultaneous data communication and fiber perturbation detection

1993-02-01

1995-01-10

Chilcot, Jr., Richard E.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

25022717, 25022719, G01B 902

Patent

active

053812573

ABSTRACT:
A simultaneous data communication and fiber perturbation detection system includes a narrow band optical data signal from a source 10 which is polarized by a polarizer 14 along a slow polarization axis of a polarization preserving birefringent optical fiber 28, and a broadband probe optical signal from a source 20 which is polarized along a fast polarization axis of the fiber 28. A perturbation 32 in the fiber 28 causes a portion of the probe signal to be coupled onto the orthogonal slow polarization. At the receiving end of the fiber 28, a beamsplitter 34 splits the signal along a path 36 which extracts the data signal to be received by a data receiver 44, and a path 38 which extracts the probe signal and employs an adjustable interferometer 58 to determine the location along the fiber 28 where the perturbation 32 exists. The central wavelengths .lambda.1,.lambda.2 of the data and probe optical signals may be the same or different.

REFERENCES:
patent: 4567586 (1986-01-01), Koeck
patent: 4863270 (1989-09-01), Spillman, Jr.
patent: 5094534 (1992-03-01), Cole et al.
patent: 5136666 (1992-08-01), Anderson et al.
patent: 5258615 (1993-11-01), Thorley
Lloyd C. Bobb, United States Statutory Invention Registration, Reg. No. H371, Optical Fiber Interferometer, Nov. 3, 1987.
Mode Couplings Due To External Forces Distributed Along A Polarization-Maintaining Fiber: An Evaluation (Makoto Tsubokawa, Tsunehito Higashi, and Yukiyasu Negishi; Applied Optics/vol. 27, No. 1/1 Jan. 1988).
Measurement Of Spatial Distributions Of Mode Coupling In Polarization-Maintaining Fibers (Takada; Noda; Sasaki; Electronics Letters/vol. 20, No. 3, 2 Feb. 1984, pp. 119-121).
Measurement Of Spatial Distribution Of Mode Coupling In Birefringent Polarization-Maintaining Fiber With New Detection Scheme (K. Takada; J. Noda; K. Okamoto; Optics Letters/vol. 11, No. 10/Oct. 1986.

Affiliated with

Also associated with

Rating

Simultaneous data communication and fiber perturbation detection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Simultaneous data communication and fiber perturbation detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simultaneous data communication and fiber perturbation detection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-854951