We report a backward-wave spontaneous-Raman multi-gas sensor employing a hollow-core photonic-bandgap-fiber to contain gasses and increase interaction length. Silica Raman noise and detection speed are reduced using a digital spatial filter and a cladding seal.
© 2009 The Optical Society
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(300.0300) Spectroscopy : Spectroscopy
(300.6450) Spectroscopy : Spectroscopy, Raman
(060.5295) Fiber optics and optical communications : Photonic crystal fibers
M. P. Buric, K. P. Chen, J. Falk, and S. D. Woodruff, "Improved Sensitivity Spontaneous Raman Scattering Multi-Gas Sensor," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper CThI6.
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