Reduction of modal and chromatic material dispersion in a multim

Details Reduction of modal and chromatic material dispersion in a multim Reduction of modal and chromatic material dispersion in a multim

1976-08-03

1978-01-10

Corbin, John K.

350 96GN, 350 96C, G02B 514

Patent

active

040676420

ABSTRACT:
Modal dispersion and chromatic material dispersion in a multimode optical fiber is reduced by feeding the rays of the light beam into the end of the optical fiber the angle of each ray relative to the axis of the fiber varied in accordance with the wavelength of the ray. The shortest ray is fed at a zero angle and the longest wavelength at angle of .phi. max. .phi. max. is defined by the equation ##EQU1##

REFERENCES:
patent: 3909110 (1975-09-01), Marcuse
patent: 4006962 (1977-02-01), Olshansky
L. Jacomme "Modal dispersion in multimode graded-index fibers," Applied Optics, vol. 14, No. 11, Nov. 1975, pp. 2578-2584.
W. C. Chiou "Spectral transmission characteristics and chromatic dispersion . . . " Appl. Optics vol. 14, No. 11, Nov. 1975, pp. 2585-2587.

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