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 $400{\mathrm{\mu m}}^2$ at 1.08 μm, larger than the $\sim 280{\mathrm{\mu m}}^2$ of conventional step-index fiber ($20/400$). The macrobending loss at 1.08 μm is estimated to be $1\times {10}^{-3}\mathrm{dB}/\mathrm{m}$, 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 ($<1\mathrm{dB}/\mathrm{m}$) and high-order mode ($>100\mathrm{dB}/\mathrm{m}$). The results indicate that multiring delivery fiber fabricated by modified chemical vapor deposition process is a promising candidate for high-power transmission.

© 2013 Optical Society of America

Triangular-core large-mode-area photonic crystal fiber with low bending loss for high power applications

Than Singh Saini, Ajeet Kumar, and Ravindra Kumar Sinha
Appl. Opt. 53(31) 7246-7251 (2014)

Bend-resistant large-mode-area photonic crystal fiber with a triangular-core

Xin Wang, Shuqin Lou, and Wenliang Lu
Appl. Opt. 52(18) 4323-4328 (2013)

Rectangular-core large-mode-area photonic crystal fiber for high power applications: design and analysis

Reena, Than Singh Saini, Ajeet Kumar, Yogita Kalra, and Ravindra Kumar Sinha
Appl. Opt. 55(15) 4095-4100 (2016)

Design and analysis of dual-shape-core large-mode-area optical fiber

Ajeet Kumar and Vipul Rastogi
Appl. Opt. 50(25) E119-E124 (2011)

Single-mode delivery of 250 nm light using a large mode area photonic crystal fiber

N. Yamamoto, L. Tao, and A.P. Yalin
Opt. Express 17(19) 16933-16940 (2009)