Method of optical fiber communication

Details Method of optical fiber communication Method of optical fiber communication

1994-05-31

1996-05-21

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359173, 359181, 359188, H04B 1012, H04B 1018

Patent

active

055195288

ABSTRACT:
An optical fiber communication apparatus includes a main optical fiber having dispersive characteristics; a semiconductor laser diode for outputting an optical signal transmitted through the main optical fiber; a photodiode for receiving the optical signal output from the main optical fiber and a dispersion canceling short distance optical fiber having a total dispersion approximately the same as and in a reverse phase from the total dispersion of the main optical fiber at the wavelength of the optical signal, correcting the total dispersion produced by the main optical fiber and located at one of the input and output end of the main optical fiber. An optical signal traveling through the signal transmission line becomes a reformed rectangular waveform at the output end so that reading errors can be eliminated, resulting in highly reliable communication.

REFERENCES:
patent: 4261639 (1981-04-01), Kogelnik et al.
patent: 4969710 (1990-11-01), Tick et al.
patent: 5355240 (1994-10-01), Prigent et al.
patent: 5373382 (1994-12-01), Pirio
patent: 5373384 (1994-12-01), Hebert
Vanderwall, "Suppression of some antifacts of model noise in fiber Optic systems" Optics Letters, vol. 4, #9, pp. 295-296, Sep. 1979.
Ibrahim et al, "Fibre-Equaliser Second Order Distortion Compensation in 1-55 .mu.m Lightwave CATV Transmission System", Electronic Letters, Feb. 4, 1993, vol. 29, No. 3, pp. 315-317.

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