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Microfiber and Microcoil Resonators and Resonant Sensors

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Book cover Photonic Microresonator Research and Applications

Part of the book series: Springer Series in Optical Sciences ((SSOS,volume 156))

Abstract

The manufacture of tapers from optical fibers provides the possibility to get long, uniform, and robust micrometer- or nanometer-size wires. Optical microfibers are fabricated by adiabatically stretching conventional optical fibers and thus preserve the original optical fiber dimensions at their input/output pigtails, allowing ready splicing to standard fibers. Since microfibers have a size comparable to the wavelength of the light propagating in it, a considerable fraction of power can be located in the evanescent field, outside the microfiber physical boundary. When a microfiber is coiled, the mode propagating in it interferes with itself to give a resonator. In this chapter the latest results on the manufacture of optical microfiber resonators are presented. Optical microfibers can be used to fabricate single-loop and multiple-loop (coil) resonators with extremely high Q factors. High Q resonators can be used for refractometric biosensors and because of their design they provide an exceptionally high sensitivity.

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Acknowledgments

Gilberto Brambilla gratefully acknowledges the Royal Society (London, UK) for his research fellowship. The authors thank EPSRC (UK research council) for financial support.

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Authors and Affiliations

  1. Department of Materials Science and Engineering and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, Jiangsu, 210093, People’s Republic of China

    Fei Xu

  2. Optoelectronics Research Centre, University of Southampton, Southampton, Hampshire, UK

    Gilberto Brambilla

Authors
  1. Fei Xu
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  2. Gilberto Brambilla
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Correspondence to Fei Xu .

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Editors and Affiliations

  1. , School of Electrical and, National Technical University, Athens, 157 80, Greece

    Ioannis Chremmos

  2. Dept. Electrical & Computer Engineering, Concordia University, Maisonneuve Blvd. West, EV005.126 1455, Montreal, H3G 1M8, Canada

    Otto Schwelb

  3. , School of Electrical and, National Technical University, Athens, 157 80, Greece

    Nikolaos Uzunoglu

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Xu, F., Brambilla, G. (2010). Microfiber and Microcoil Resonators and Resonant Sensors. In: Chremmos, I., Schwelb, O., Uzunoglu, N. (eds) Photonic Microresonator Research and Applications. Springer Series in Optical Sciences, vol 156. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-1744-7_12

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