Multicomponent optical waveguide having index gradient

Details Multicomponent optical waveguide having index gradient Multicomponent optical waveguide having index gradient

G - Physics

02

B

117/85, 88/97.2

G02B 5/14 (1980.01)

Patent

CA 1126549

ABSTRACT OF THE INVENTION An optical waveguide for a communication system includes a graded index core formed from at least three glass-forming compounds with a profile having at least two .alpha.-type index profile terms. The core has a refractive index which is nc at the center of the core and which varies as a function of the radial distance r from the center of the core substantially as: Image where .alpha.i is defined by: Image ....N where N ? 2, Image , no is the refractive index of saia compounds at r = a, Nc = nc - .lambda.dnc/d.lambda. where .lambda. is the wavelength of the light source, and the quantities .DELTA.i are parameters which can be varied provided the condition Image is satisfied.

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