14 October 2013 Equiangular spiral photonic crystal fibers with low bending loss
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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.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Md. Asiful Islam, Md. Asiful Islam, M. Shah Alam, M. Shah Alam, } "Equiangular spiral photonic crystal fibers with low bending loss," Optical Engineering 52(10), 100502 (14 October 2013). https://doi.org/10.1117/1.OE.52.10.100502 . Submission:

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