Patent ID: 7952719
Filing Date: 2011-05-31
Classification: A61B,G01B,G01J,G01N

Abstract:
1. A fiber optic probe system capable of performing high wavenumber Raman spectroscopy and optical coherence tomography over an optical fiber, comprising: a double clad optical fiber having a proximal end, a distal probe end and a central longitudinal axis and comprising a core, an inner clad surrounding the core and an outer clad surrounding the inner clad; a laser light source operably coupled or selectively operably coupleable to the proximal end of the double clad fiber to transmit Raman excitation light down at least one of the core and the inner clad of the double clad fiber; an interferometry light source operably coupled or selectively operably coupleable to the proximal end of the double clad fiber to transmit light down the core of the double clad fiber; a Raman spectrometer operably coupled or selectively operably coupleable to the proximal end of the double clad fiber to receive Raman scattered light from a sample via the inner clad of the fiber, said spectrometer configured to measure Raman scattered light in the range of 2,500-4,000 cm an interferometer operably coupled or selectively operably coupleable to the proximal end of the double clad fiber to receive phase-shifted light from a sample via the core of the fiber and combine the phase-shifted light with a reference beam.