Raman sensing of fuel gases using a reflective coating capillary optical fiber

M. P. Buric; K. Chen; J. Falk; R. Velez; S. Woodruff

doi:10.1117/12.818746

27 April 2009 Raman sensing of fuel gases using a reflective coating capillary optical fiber

M. P. Buric, K. Chen, J. Falk, R. Velez, S. Woodruff

Proceedings Volume 7316, Fiber Optic Sensors and Applications VI; 731608 (2009) https://doi.org/10.1117/12.818746
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

Hollow core fiber optics enable gas phase Raman spectroscopy with relatively low power laser excitation sources. A Raman sensor for gaseous fuel analysis is demonstrated using silver coated capillary optical fiber as the sample cell and as the signal collection optic. Using laser powers with as little as a few milliwatts excitation power, the majority species of natural gas and syngas are readily detected, as well as oxygen and nitrogen in a single sensor system. Exchange rates in the capillary optical fiber are high enough to enable optical analysis in sub-second response time for real time sensing and control. Because this one sensor system simultaneously detects and resolves all the component species, real time feedback to the combustion control system of fuel content and properties is enabled.

Citation Download Citation

M. P. Buric, K. Chen, J. Falk, R. Velez, and S. Woodruff "Raman sensing of fuel gases using a reflective coating capillary optical fiber", Proc. SPIE 7316, Fiber Optic Sensors and Applications VI, 731608 (27 April 2009); https://doi.org/10.1117/12.818746

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