Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1987-12-21
1989-08-08
McGraw, Vincent P.
Optics: measuring and testing
For optical fiber or waveguide inspection
356359, G01N 2188, G01B 1127
Patent
active
048547018
ABSTRACT:
The invention relates to an arrangement of inspecting light waveguide end faces by observing the interference pattern formed by means of measuring light in the airgap between a plane transparent plate and the end face of a light waveguide abutting on said plate. A less elaborate measuring device requiring less space is obtained in that the measuring light is led towards the end faces to be observed, via the light waveguides (1, 2, 23, 24).
REFERENCES:
patent: 4474469 (1984-10-01), Abe
patent: 4558950 (1985-12-01), Ulrich et al.
patent: 4652123 (1987-03-01), Neumann
patent: 4660972 (1987-04-01), Rossberg et al.
Gordon et al., "Fiber-Break Testing by Interferometry: a Comparison of Two Breaking Methods", Applied Optics, vol. 16, #4, Apr. 1977, pp. 818-819.
Blazek Vladimir
Noll Joachim J.
Schmitt Hans-Jurgen
Bartlett Ernestine C.
McGraw Vincent P.
U.S. Philips Corp.
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