Antiresonant guiding in a poly(methyl-methacrylate) hollow-core optical fiber

Christos Markos, Kristian Nielsen, Ole Bang

Research output: Contribution to journalJournal articleResearchpeer-review


Strong antiresonant reflecting optical waveguiding is demonstrated in a novel poly (methyl-methacrylate) (PMMA) hollow-core fiber. The transmission spectrum of the fiber was characterized using a supercontinuum source and it revealed distinct resonances with resonant dips as strong as ~20 dB in the wavelength range 480-900 nm, where PMMA has low absorption. The total propagation loss of the fiber was measured to have a minimum of ~45 dB m-1 at around 500 nm. The thermal sensitivity of the fiber is 256 ± 16 pm °C-1, defined as the red-shift of the resonances per °C, which is three times higher than the sensitivity of polymer fiber Bragg gratings.
Original languageEnglish
Article number105603
JournalJournal of Optics
Issue number10
Number of pages8
Publication statusPublished - 2015


  • Antiresonant guidance
  • Polymer fiber
  • Hollow-core fiber
  • Fiber sensor


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