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Optical Engineering

Equiangular spiral photonic crystal fibers with low bending loss
Author(s): Md. Asiful Islam; M. Shah Alam
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Paper Abstract

The leakage losses of a bent equiangular spiral photonic crystal fiber (ES-PCF) have been analyzed in this paper by employing a full-vectorial finite element method. The analysis shows that the confinement and bending losses of ES-PCF are several orders of magnitude less than that of the conventional hexagonal lattice PCF (H-PCF) with similar dimensions. Also, the bending loss increases less rapidly in ES-PCF than in H-PCF for similar bending radii. It has also been found that no mode degeneration between fundamental core mode and first cladding mode occurs in ES-PCF. The reason of higher field confinement in ES-PCF than its hexagonal counterpart is also discussed.

Paper Details

Date Published: 14 October 2013
PDF: 4 pages
Opt. Eng. 52(10) 100502 doi: 10.1117/1.OE.52.10.100502
Published in: Optical Engineering Volume 52, Issue 10
Show Author Affiliations
Md. Asiful Islam, Bangladesh Univ. of Engineering and Technology (Bangladesh)
M. Shah Alam, Bangladesh Univ. of Engineering and Technology (Bangladesh)

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