Single-mode mid-IR guidance in a hollow-core photonic crystal fiber

J. D. Shephard, W. N. MacPherson, R. R J Maier, J. D C Jones, D. P. Hand, M. Mohebbi, A. K. George, P. J. Roberts, J. C. Knight

Research output: Contribution to journalArticlepeer-review

165 Citations (Scopus)


We report, for the first time, bandgap guidance above 3 µm in a silica based air-core photonic crystal fiber. The peak of the bandgap is at 3.14µm with a typical attenuation of ~ 2.6 dB m-1. By further optimization of the structure, modeling suggests that a loss below 1 dB m -1 should be achievable, greatly extending the useful operating range of silica-based single-mode fibers. Such fibers have many potential applications in the mid-IR, offering an alternative to fluoride, tellurite or chalcogenide glass based optical fibers for chemical and biological sensing applications. © 2005 Optical Society of America.

Original languageEnglish
Pages (from-to)7139-7144
Number of pages6
JournalOptics Express
Issue number18
Publication statusPublished - 5 Sept 2005


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