Evanescent-wave Sensing with Multiple Sampling Channels along a Single Optical Fiber
AbstractWe demonstrate that the evanescent-wave sensing platform with one sampling channel may be expanded to at least a 12-channel system. These channels are implemented as a series of 2-mm long exposed segments of the fiber core sidewall along a single optical fiber. Using the cladded fiber segments as channel separations, we achieve a condition of zero inter-channel crosstalk, which is fundamental to the system operation, for both 4- and 12-channel systems. Theoretical interpretation of the mechanism of zero inter-channel crosstalk is examined in detail.
Full Text: PDF
- C. R. Taitt, T. P. Anderson, and F. S. Ligler, "Evanescent wave fluorescence biosensors", Biosens. Bioelectron., 20, 2470 (2005). CrossRef
- R. Narayanaswamy and O. S. Wolfbeis, Optical Sensors: Industrial Environmental and Diagnostic Applications, Wolfbeis, O. S., Ed.; Springer: Germany, 2004.
- J. Ma and W. J. Bock, "Reshaping a sample fluid droplet: toward combined performance enhancement of an evanescent-wave fiber-optic fluorometer", Opt. Lett., 32, 8 (2007). CrossRef
- H. Chen, J. Ma, J. Chen, and W. J. Bock, "Significant retrieval of lost evanescent power by tuning modes close-to-cutoff with a gel-coated taper", Opt. Lett., 36, 2092 (2011). CrossRef
- J. Ma, Y. Chiniforooshan, J. Chen, W. J. Bock, W. Hao, and Z. Y. Wang, "Recapturing lost evanescent power by tuning end face total internal reflection capable tunneling modes at a roughened fiber end face", Opt. Lett., 36, 3581 (2011). CrossRef
- D. Gloge, "Weakly Guiding Fibers", Appl. Opt., 10, 2252 (1971). CrossRef
How to Cite
J. Ma and W. J. Bock, “Evanescent-wave Sensing with Multiple Sampling Channels along a Single Optical Fiber”, Photon.Lett.PL, vol. 5, no. 4, pp. pp. 164–166, Dec. 2013.