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A microring multimode laser using hollow polymer optical fibre

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Abstract

We report the observation of multimode laser operation at wavelengths corresponding to whispering-gallery modes from a freestanding microring cavity based on rhodamine B dye-doped PMMA hollow optical fibre. Cylindrical microcavities with diameters 155, 340 and 615 µm were fabricated from a dye-doped hollow polymer optical fibre preform. An average mode spacing of 0.17 nm was observed for the 340 µm cavity. This shows that the laser mode intensity distribution is concentrated on the outer edge of the cavity.

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Authors and Affiliations

  1. International School of Photonics, Cochin University of Science and Technology, Kochi, 682 022, India

    M. Kailasnath, V. P. N. Nampoori & P. Radhakrishnan

Authors
  1. M. Kailasnath
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  2. V. P. N. Nampoori
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  3. P. Radhakrishnan
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Correspondence to M. Kailasnath.

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Kailasnath, M., Nampoori, V.P.N. & Radhakrishnan, P. A microring multimode laser using hollow polymer optical fibre. Pramana - J Phys 75, 923–927 (2010). https://doi.org/10.1007/s12043-010-0176-7

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  • DOI: https://doi.org/10.1007/s12043-010-0176-7

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