Patent
1976-09-07
1978-08-15
Corbin, John K.
350 9630, 350 9634, G02B 514
Patent
active
041068475
ABSTRACT:
An optical fiber waveguide is disclosed wherein the cladding surrounds a fiber core having a noncircularly symmetric cross section. Equations are presented which dictate the value of the index of refraction that must be provided at each spatial point within the fiber core in order to construct a fiber waveguide having minimum modal dispersion. An especially useful optical fiber waveguide is disclosed with an elliptical fiber core thereby providing a fiber which can be more efficiently coupled to a light emitting source having an elongated source area such as in a heterojunction laser or an edge-emitting light emitting diode.
REFERENCES:
patent: 3904268 (1975-09-01), Keck et al.
patent: 4057320 (1977-11-01), Marcatili
Miller, "Light Propagation in Generalized Lens-Like Media," Bell Syst. Tech. Journal, Nov. 1965, pp. 2017-2064.
Arnaud, "Pulse Broadening in Multimode Optical Fibers," Bell Syst. Tech. Journal, Sep. 1975, pp. 1179-1205.
Arnaud, Beam and Fiber Optics, Section 5.19, pp. 418-428, Academic Press, Inc., New York, Feb. 1976.
Arnaud et al., "Pulse Broadening in Multimode Optical Fibers with Large n
. . ., " Elect. Letters, Apr. 1, 1976, pp. 167-169.
Bell Telephone Laboratories Incorporated
Corbin John K.
Dubosky Daniel D.
Lee John D.
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