Brillouin gain spectrum characterization in perfluorinated graded-index polymer optical fiber with 62.5-μm core diameter

Yosuke Mizuno, Takaaki Ishigure, Kentaro Nakamura

Research output: Contribution to journalArticle

34 Citations (Scopus)


We characterize the Brillouin gain spectra (BGS) in perfluorinated graded-index polymer optical fibers (PFGI-POFs) with 62.5-μm core diameter. First, we show that the Stokes power is extremely high compared to that of a standard PFGI-POF with 120-μm core, and discuss the Brillouin threshold power. Then, we demonstrate that the PFGI-POF length has little influence on the BGS when the length is longer than 50 m. We also predict that, at 1.55-μm wavelength, it is difficult to reduce the Brillouin threshold power of PFGI-POFs below that of long silica single-mode fibers even if their core diameter is sufficiently reduced to satisfy the single-mode condition. Finally, we confirm the Brillouin linewidth narrowing effect.

Original languageEnglish
Article number6031903
Pages (from-to)1863-1865
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number24
Publication statusPublished - 2011 Nov 30



  • Brillouin gain spectrum
  • Brillouin linewidth
  • Brillouin scattering
  • nonlinear optics
  • polymer optical fiber (POF)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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