Referenced Items are not available for this document.
We investigate the bending characteristics of leakage channel fibers (LCFs) to achieve large mode area (LMA) and effectively single-mode operation with a practically allowable bending radius for compact Yb-doped fiber applications. Through numerical simulations, carried by the full-vectorial finite-element method, we present the limitations on the effective area of LCFs under bent condition and compare their limits with that of conventional step-index LMA fibers. Due to a better controllability of the low numerical aperture and a large value of the differential bending loss (~20 dB/m) between the fundamental and higher order modes in LCFs, the LMA of ~500 μm2 (core diameter of ~36 μm) at 1064 nm can be achieved when the optimized LCF is bent into a 10 cm bending radius.
Published in:
Lightwave Technology, Journal of
(Volume:29
,
Issue:
17
)
Date of Publication: Sept.1, 2011
- Page(s):
- 2609 - 2615
- ISSN :
- 0733-8724
- INSPEC Accession Number:
- 12205899
- Digital Object Identifier :
- 10.1109/JLT.2011.2161603
- Date of Publication :
- 14 July 2011
- Date of Current Version :
- 18 August 2011
- Issue Date :
- Sept.1, 2011
- Sponsored by :
- IEEE Aerospace and Electronic Systems Society
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