Patent ID: 7539363
Filing Date: 2009-05-26
Classification: G01N,G02B

Abstract:
1. A fiber optic probe for detecting the presence or absence of one or more substances within a medium, said fiber optic probe comprising: at least one illuminating optical fiber for guiding excitation light from a light source to be launched from an end face of said at least one illuminating optical fiber; at least one film for emitting film-emitted light when illuminated by said excitation light, said film-emitted light having a central wavelength that is different than a central wavelength of said excitation light; and at least one receiving optical fiber for receiving and guiding said film-emitted light, said at least one receiving optical fiber being a photonic crystal fiber, an end portion of said at least one receiving optical fiber being a solid segment of glass. wherein said end portion of said at least one receiving optical fiber is tapered.