Endface assessment

Details Endface assessment Endface assessment

1985-05-29

1986-11-04

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

356154, G01N 2184, G01B 1126

Patent

active

046207899

ABSTRACT:
Features of the endface of a dielectric member are assessed by means of a reflected diffraction pattern.
A plurality of light beams 6, 7 which intersect in a region containing the endface 8 can be used to generate a diffraction pattern 10 which subtends an angle of at least 180.degree. at the endface 8. Such a diffraction pattern 10 contains information about the endface 8 and may be used, in particular, to locate the plane in which the endface 8 lies.
Embodiments of the invention find particular application in the measurement of endface angles of optical fibres.

REFERENCES:
Millar, "A Measurement Technique for Optical Fibre Break Angles", Optical & Quantum Electronics 13, (1981), pp. 125-131.

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