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    • Keywords


      Fibre lasers; optical microcavities; whispering gallery modes.

    • Abstract


      Well-resolved multimode laser emission was observed for the first time from a freestanding microring cavity based on Rhodamine B dye-doped hollow polymer optical fibre by transverse pumping. Fibres with different diameters such as 180, 460, 640 and 800 𝜇m were fabricated from a dye-doped hollow polymer preform. A blueshift in the mode structure was observed with decrease in fibre diameter leading to wide range tunability of the laser emission.

    • Author Affiliations


      C L Linslal1 Jaison Peter1 S Mathew1 M Kailasnath1

      1. International School of Photonics, Cochin University of Science & Technology, Cochin 682 022, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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