Optical fiber telecommunication line with separate, optically tr

Details Optical fiber telecommunication line with separate, optically tr Optical fiber telecommunication line with separate, optically tr

1991-01-29

1992-05-12

Lee, John D.

Optical waveguides

With optical coupler

Plural

385 27, 359173, G02B 628

Patent

active

051134594

ABSTRACT:
An optical fiber transmission line which includes units for injecting into, and units for extracting, optical service signals from the line's optical fiber. The units include optical service signal emitters and receivers for receiving from the optical line and/or injecting into the optical line service signals in the form of optical signals having a wavelength which is substantially different from the wavelength of the telecommunication signals also transmitted over the optical line, each of the units is associated with an optical coupler which is inserted in the line and which is suitable for coupling it with the line fiber and/or for extracting the optical service signals from the line fiber.

REFERENCES:
patent: 4276656 (1981-06-01), Petryk, Jr.
patent: 4781427 (1988-11-01), Husbands et al.
patent: 4863231 (1989-09-01), Byron et al.
patent: 4878726 (1989-11-01), Fatehi
patent: 4886334 (1989-12-01), Aoki
patent: 4911515 (1990-03-01), So et al.
patent: 4957339 (1990-09-01), Fussganger et al.
patent: 5054896 (1991-08-01), Grasso et al.

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