Effective single-mode transmission at wavelengths shorter than the cutoff wavelength of an optical fiber

S. Moon, D. Y. Kim

Research output: Contribution to journalArticle

27 Citations (Scopus)


We propose a novel transmission scheme to extend the single-mode operation range of a conventional single-mode fiber (C-SMF) to wavelengths shorter than the cutoff wavelength. It involves the use of a tapered-fiber mode filter (MF) in order to remove the high-order-mode power from the C-SMF and hence, makes the fiber work as a virtually single-mode transmission link. High-order mode suppression of above 10 dB has been achieved at wavelengths of 850 and 980 nm with a fabricated tapered-fiber MF. We have also demonstrated the feasibility of the technique by evaluating the transmission quality with the MF at 850 nm through a 5-km C-SMF having a cutoff wavelength of 1.2 μm.

Original languageEnglish
Pages (from-to)2604-2606
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number12
Publication statusPublished - 2005 Dec 1


All Science Journal Classification (ASJC) codes

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

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