Low noise Raman analyzer system

Details Low noise Raman analyzer system Low noise Raman analyzer system

1998-03-11

1999-10-05

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With raman type light scattering

G01J 344, G01N 2165

Patent

active

059633190

ABSTRACT:
An instrument that analyzes chemical properties of a specimen using optical sensing provides a laser source with an optical fiber channel that carries light from the source to a probe. The probe has a receiving optical fiber and has an emitting optical fiber that carries Raman-scattered light from the specimen. The emitting optical fiber has a metal buffer layer. A spectral detector receives light from the receiving optical fiber in the probe. A filter module includes a filter that transmits the wavelength of the laser source but blocks wavelengths longer than the source between the source and the emitting optical fiber or the probe. The filter module is coupled to the probe by a linking optical fiber.

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"Riber Raman background study and its application in setting up optical fiber Raman probes", by Jiaying Ma and Ying-Sing Li, Applied Optics, May 20, 1996, vol. 35, No. 15, pp. 2527-2533.

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