Evanescent-wave Sensing with Multiple Sampling Channels along a Single Optical Fiber


  • Jianjun Ma
  • Wojtek J. Bock




We 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.

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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.