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.
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LINSLAL, C.L., PETER, J., MATHEW, S. et al. Multimode laser emission from dye-doped hollow polymer optical fibre. Pramana - J Phys 82, 233–236 (2014). https://doi.org/10.1007/s12043-013-0669-2
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DOI: https://doi.org/10.1007/s12043-013-0669-2