Title:
OPTICAL WAVEGUIDE TUBE
Document Type and Number:
Japanese Patent JPS5339141
Kind Code:
A
Abstract:
Low-loss optical waveguide with small dispension for optical fibre transmission has sheathing and core. The sheathing has a first refractive index (n2). The core with the outside radius (b) has a second refractive index which is variable in a radial direction. The refractive index of the core reduces from a first value (n1) on the core axis in a parabolic curve to a second value (np) at a radius (a) to the outside radius (b) in a non-parabolic curve to the third value (n2). This reduction in the non-parabolic curve is more pronounced than in the parabolic curve. The whole refractive index profile is given by equations.
Inventors:
ROBAATO ORUSHIYANSUKI
Application Number:
JP11116177A
Publication Date:
April 10, 1978
Filing Date:
September 14, 1977
Export Citation:
Assignee:
CORNING GLASS WORKS
International Classes:
H04B10/25; G01M11/00; G02B6/028; G02B6/036; H04B10/00; H04B10/2581; (IPC1-7): G02B5/14; H01P3/00; H04B9/00
Domestic Patent References:
| JPS52132847A | 1977-11-07 |