Super wide band light transmitting system

Details Super wide band light transmitting system Super wide band light transmitting system

1979-09-13

1981-08-04

Corbin, John K.

350 9615, 350162SF, 350311, G02B 514

Patent

active

042818931

ABSTRACT:
There is inserted between a light source and an input of an optical fiber a mode filter which changes the phase of light to be propagated continuously or discontinuously so as to convert guided modes of lower azimuthal number into those of higher numbers in a light transmitting system which employs a graded index optical fiber with a valley at the core-cladding boundary. This reduces the mode-delay differences for all modes including those which are close to cut off so that an optical communication system having a very wide bandwidth is obtained.

REFERENCES:
patent: 3643097 (1972-02-01), Ueki et al.
patent: 3891302 (1975-06-01), Dabby et al.
patent: 4176911 (1979-12-01), Marcatili et al.
patent: 4229067 (1980-10-01), Love
Gloge, "Weakly Guiding Fibers," Applied Optics, vol. 10, No. 10, Oct. 1971, pp. 2252-2258.
Okamoto et al., "Analysis of Wave Propagation in Optical Fibers . . . ," IEEE Trans. on M'Wave Th. & Tech., vol. MTT-24, No. 7, Jul. 1976, pp. 416-421.
Yamada et al., "Guided Waves Along an Optical Fiber . . . ," J.O.S.A., vol. 67, No. 1, Jan. 1977, pp. 96-103.
Snitzer, "Cylindrical Dielectric Waveguide Modes," J.O.S.A., vol. 51, No. 5, May 1961, pp. 491-498.

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