open access

https://hdl.handle.net/2115/14744

Realization of Single-Moded Broadband Air-Guiding Photonic Bandgap Fibers

英語

photonic crystal fiber

2006-08

IEEE

IEEE Photonics Technology Letters

18(15)

1666-1668

In this letter, we propose a novel type of air-guiding photonic bandgap fiber, which exhibits an effectively single-mode operation with a low confinement loss over a wide wavelength range, extended from 1460 to 1840 nm. For several realistic structural parameters, the wavelength dependence of the dispersion as well as the confinement loss properties are investigated through a full-vector modal solver based on the finite-element method. In particular, we optimize the structure so as to exhibit the following performance: effectively single-mode operation from 1460 to 1840 nm, with corresponding confinement loss of the fundamental air-guided mode of 8.8/spl times/10/sup -5/ dB/km, and enhancement of the confinement loss of the higher order mode of 43 dB/m for ten-ring structure.

学術雑誌論文

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1041-1135