Theoretical investigations of trench-assisted large mode-area, low bend loss and single-mode microstructured core fibers

We propose two different types of bend-insensitive microstructured core fiber (MCF) designs—trench-assisted MCF (TAMCF) and hole-assisted MCF (HAMCF) operating over C-band to achieve large mode-area, low bending loss and single-mode operation. We numerically demonstrate the design principles and con...

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Bibliographic Details
Published in:	Optics communications Vol. 307; pp. 9 - 16
Main Authors:	Behera, B.L., Maity, A., Varshney, S.K., Datta, R.
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 15-10-2013
Subjects:	Bending Core loss Cost engineering Fiber devices Fibers Large mode-area Mathematical analysis Mathematical models Microstructured core fiber Noise levels Optical fibers Large mode-area Microstructured core fiber Fiber devices
Online Access:	Get full text
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Summary:	We propose two different types of bend-insensitive microstructured core fiber (MCF) designs—trench-assisted MCF (TAMCF) and hole-assisted MCF (HAMCF) operating over C-band to achieve large mode-area, low bending loss and single-mode operation. We numerically demonstrate the design principles and constraints on bend-limited large-mode-area microstructured core optical fibers and investigate their modal properties by using fully-vectorial effective index method and finite element method. The TAMCF shows larger effective mode-area >1000μm2 at 1550nm with a bending loss <0.1dB/m, whereas the HAMCF exhibit very low bending loss value −10−5dB/m at the cost of reduced effective mode-area when the fibers are bent into 7.5cm bending radius. However, calculations on differential leakage losses between two designs indicate TAMCF performs better. We have also investigated the effect of bending plane on the bend loss characteristics of proposed fiber designs.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0030-4018 1873-0310
DOI:	10.1016/j.optcom.2013.05.035