Fabrication of corrugated Ge-doped silica fibers
Journal article, 2012

We present a method of fabricating Ge-doped SiO2 fibers with corrugations around their full circumference for a desired length in the longitudinal direction. The procedure comprises three steps: hydrogenation of Ge-doped SiO2 fibers to increase photosensitivity, recording of Bragg gratings with ultraviolet light to achieve modulation of refractive index, and chemical etching. Finite-length, radially corrugated fibers may be used as couplers. Corrugated tapered fibers are used as high energy throughput probes in scanning near-field optical microscopy.

transmission

bragg gratings

tip

hydrogen

light

wave-guides

photosensitivity

probe

refractive-index

field optical microscopy

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Published in

Optics Express

1094-4087 (ISSN) 10944087 (eISSN)

Vol. 20 Issue 13 p. 14508-14513

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Subject Categories (SSIF 2011)

Electrical Engineering, Electronic Engineering, Information Engineering

Identifiers

DOI

10.1364/OE.20.014508

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Latest update

10/30/2018