Optical fibre transmission systems

Details Optical fibre transmission systems Optical fibre transmission systems

1987-12-16

1990-09-04

Sikes, William L.

350 9615, G02B 634

Patent

active

049539396

ABSTRACT:
A device for producing an optical delay in an optical signal having variable optical frequency, the optical delay varying with the optical frequency, comprises a chirped Bragg reflector formed in an optical fiber and a directional coupler for separating the reflected signal from the input signal. One application of the device is for chromatic dispersion equalization. Various methods of manufacturing the chirped Bragg reflector are described.

REFERENCES:
patent: 3863063 (1975-01-01), Indig et al.
patent: 3891302 (1975-06-01), Dabby et al.
Optics Letters, Jan. 1982, vol. 7, No. 1, pp. 37-39, "Flow-Optic Integrated Whatever Filters", J. Lapierre et al.
Hill et al., "Photosensitivity in Optical Fiber Waveguides"; Appl. Phys. Lett.; vol. 32, No. 10; May 1978; pp. 647-9.

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