Apparatus for measuring cross-sectional distribution of refracti

Details Apparatus for measuring cross-sectional distribution of refracti Apparatus for measuring cross-sectional distribution of refracti

1993-06-30

1994-09-20

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

356128, G01N 2141, G01N 2143

Patent

active

053494318

ABSTRACT:
An optical waveguide portion is provided on one surface of a substrate portion. A luminous flux for measurement is caused to be incident on one end face of the optical waveguide substrate, and only leaking light having passed through the substrate portion is received. The cross-sectional distribution of the refractive index of the optical waveguide portion is measured from changes in the received quantity of light.

REFERENCES:
patent: 5278628 (1994-01-01), Gisin et al.
patent: 5280334 (1994-01-01), Gisin et al.

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