Saitoh, Kunimasa and Tsuchida, Yukihiro and Rosa, Lorenzo and Koshiba, Masanori and Poli, Federica and Cucinotta, Annamaria and Selleri, Stefano and Pal, Mrinmay and Paul, Mukul Chandra and Ghosh, Debashri and Bhadra, Shyamal Kumar (2009) Design of all-solid leakage channel fibers with large mode area and low bending loss. Optics Express , 17 (6). pp. 4913-4919. ISSN 1094-4087

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We investigate a novel design for all-solid large mode area (LMA) leakage channel fibers (LCFs) for high-power Yb-doped fiber lasers and amplifiers, based on a single down-doped-silica rod ring surrounding a seven-cell pure-silica core, aiming for effectively single-mode behavior and low bending loss characteristics. Through detailed numerical simulations based on the finite element method (FEM), we find that the proposed all-solid LMA-LCFs, having a seven-cell core and two different sizes of down-doped rods, can achieve sufficient differential mode loss and much lower bending loss, as compared with a previously-reported LCF with a one-cell core and six large down-doped-silica rods. (C) 2009 Optical Society of America

Item Type: Article
Subjects: Processing Science
Divisions: Fiber Optics and Photonics
Depositing User: Bidhan Chaudhuri
Date Deposited: 01 Mar 2012 11:51
Last Modified: 01 Mar 2012 11:51

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