Fiber optic interface for laser spectroscopic Raman probes

Details Fiber optic interface for laser spectroscopic Raman probes Fiber optic interface for laser spectroscopic Raman probes

1997-07-28

1999-06-08

Palmer, Phan

Optical waveguides

Optical waveguide sensor

385133, 385121, 385 31, G02B 600

Patent

active

059110171

ABSTRACT:
A fiber optic interface for laser spectroscopic Raman probes incorporating a housing with a window enclosure. The fiber optic interface minimizes stray light interference from window back reflections and provides high photonic efficiency through refractive manipulation of emission and reception fields. The illumination fiber is surrounded by collection fibers. The fiber bundle formed by the illumination fiber and the collection fibers is formed into a conical shape, which creates a refractive surface on the illumination fiber and each of the collection fibers. The refraction at the end faces steers the illumination and collection patterns toward the axis of the illumination fiber. This results in the reflected portion of the illumination light being reflected toward the illumination fiber, and in the collection pattern being coincident with the illumination pattern.

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