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Optical Engineering

Segmented cladding fiber fabricated in silica-based glass
Author(s): Babita Hooda; Atasi Pal; Vipul Rastogi; Ranjan Sen; Jimit Gandhi; Jens Kobelke
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Paper Abstract

We report fabrication of a segmented cladding fiber (SCF) in silica-based glass. An SCF with a uniform core of pure silica and cladding of periodically arranged pure silica and fluorine-doped silica in an angular direction has been fabricated by using the stack-and-draw technique. The fabricated fiber has been characterized by capturing its near-field intensity pattern at 633 nm wavelength. The number of modes has been estimated from the captured near-field intensity pattern by using neural network analysis. A four-segment SCF of 30-μm core diameter and 0.43% relative index differences between the high- and low-index segments shows few-mode operation by filtering out higher-order modes of an otherwise highly multimode fiber.

Paper Details

Date Published: 9 July 2015
PDF: 5 pages
Opt. Eng. 54(7) 075103 doi: 10.1117/1.OE.54.7.075103
Published in: Optical Engineering Volume 54, Issue 7
Show Author Affiliations
Babita Hooda, Indian Institute of Technology Roorkee (India)
Atasi Pal, Central Glass and Ceramic Research Institute (India)
Vipul Rastogi, Indian Institute of Technology Roorkee (India)
Ranjan Sen, Central Glass and Ceramic Research Institute (India)
Jimit Gandhi, Indian Institute of Technology Roorkee (India)
Jens Kobelke, Leibniz-Institut für Photonische Technologien e.V. (Germany)

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