Optical fiber probe for an interferometric measuring device...

Details Optical fiber probe for an interferometric measuring device... Optical fiber probe for an interferometric measuring device...

2007-10-11

2011-12-13

Connolly, Patrick J (Department: 2877)

Optics: measuring and testing

By light interference

Using fiber or waveguide interferometer

C356S477000

Reexamination Certificate

active

08077323

ABSTRACT:
An optical fiber probe for an interferometric measuring device having a mechanical receptacle into which an optical fiber is inserted, having a fiber end piece which projects over the mechanical receptacle and contains optical components for guiding a measuring beam onto a measuring object, and having a reflection zone situated in the fiber for partial reflection of a light beam guided in the fiber. The reflection zone is situated in the fiber end piece. A method for manufacturing such an optical fiber probe. The fiber is separated at a predefined point, a partially reflecting coating is applied to at least one of the separation sites, and the two fiber parts are subsequently reconnected. The optical fiber probes may thus be manufactured with a long fiber end piece, which makes it possible to interferometrically measure deep cavities having a small diameter.

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