Multiring large-mode-area delivery fiber for high power.
Appl Opt
; 52(31): 7407-10, 2013 Nov 01.
Article
em En
| MEDLINE
| ID: mdl-24216638
ABSTRACT
The study presents a novel design of multiring delivery fiber with large mode area for high power. Using a FiberCAD method, we investigated a fiber whose core is surrounded by alternative low- and high-index rings. Based on our calculation, the effective area is 400 µm2 at 1.08 µm, larger than the ~280 µm2 of conventional step-index fiber (20/400). The macrobending loss at 1.08 µm is estimated to be 1×10(-3) dB/m, approximately one-third that of conventional step-index fiber (20/400). The single-mode operation can be achieved by the macrobending loss contrast between the fundamental mode (<1 dB/m) and high-order mode (>100 dB/m). The results indicate that multiring delivery fiber fabricated by modified chemical vapor deposition process is a promising candidate for high-power transmission.
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MEDLINE
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En
Ano de publicação:
2013
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Article