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Baiad MD, Gagné M, Madore WJ, et al. Surface plasmon resonance sensor interrogation with a double-clad fiber coupler and cladding modes excited by a tilted fiber Bragg grating. Opt Lett. 2013;38(22):4911-4doi: 10.1364/OL.38.004911.
Baiad, M. D., Gagné, M., Madore, W. J., De Montigny, E., Godbout, N., Boudoux, C., & Kashyap, R. (2013). Surface plasmon resonance sensor interrogation with a double-clad fiber coupler and cladding modes excited by a tilted fiber Bragg grating. Optics letters, 38(22), 4911-4. https://doi.org/10.1364/OL.38.004911
Baiad, Mohamad Diaa, et al. "Surface plasmon resonance sensor interrogation with a double-clad fiber coupler and cladding modes excited by a tilted fiber Bragg grating." Optics letters vol. 38,22 (2013): 4911-4. doi: https://doi.org/10.1364/OL.38.004911
Baiad MD, Gagné M, Madore WJ, De Montigny E, Godbout N, Boudoux C, Kashyap R. Surface plasmon resonance sensor interrogation with a double-clad fiber coupler and cladding modes excited by a tilted fiber Bragg grating. Opt Lett. 2013 Nov 15;38(22):4911-4. doi: 10.1364/OL.38.004911. PMID: 24322164.
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Opt Lett. 2013 Nov 15;38(22):4911-4. doi: 10.1364/OL.38.004911.

Surface plasmon resonance sensor interrogation with a double-clad fiber coupler and cladding modes excited by a tilted fiber Bragg grating.

Optics letters

Mohamad Diaa Baiad, Mathieu Gagné, Wendy-Julie Madore, Etienne De Montigny, Nicolas Godbout, Caroline Boudoux, Raman Kashyap

PMID: 24322164 DOI: 10.1364/OL.38.004911

Abstract

We present a novel optical fiber surface plasmon resonance (SPR) sensor scheme using reflected guided cladding modes captured by a double-clad fiber coupler and excited in a gold-coated fiber with a tilted Bragg grating. This new interrogation approach, based on the reflection spectrum, provides an improvement in the operating range of the device over previous techniques. The device allows detection of SPR in the reflected guided cladding modes and also in the transmitted spectrum, allowing comparison with standard techniques. The sensor has a large operating range from 1.335 to 1.432 RIU, and a sensitivity of 510.5 nm/RIU. The device shows strong dependence on the polarization state of the guided core mode which can be used to turn the SPR on or off.

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