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Proceedings Paper

Silica nanotaper optics with Bragg-fiber structure
Author(s): Lin Ma; Takashi Katagiri; Yuji Matsuura
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Paper Abstract

We demonstrate the possibility of confining light in a submicron silica core by introducing a Bragg multilayer cladding. 1 μm-core Bragg tapers with mode field diameters about 1.1 μm for 850 nm wavelength are successfully fabricated by a sputtering technique combining with tapering method using a traveling burner. Simulation of the mode intensity profiles for both our devices and air cladding silica fibers are made by a beam propagation method. Bragg fiber tapers show stronger confinement than silica glass tapers. The ultra-small core Bragg taper device will be a good candidate as the mode coupler for nano-optical devices.

Paper Details

Date Published: 9 October 2006
PDF: 7 pages
Proc. SPIE 6351, Passive Components and Fiber-based Devices III, 63510Z (9 October 2006); doi: 10.1117/12.688728
Show Author Affiliations
Lin Ma, Tohoku Univ. (Japan)
Takashi Katagiri, RIKEN (Japan)
Yuji Matsuura, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 6351:
Passive Components and Fiber-based Devices III
Sang Bae Lee; Yan Sun; Kun Qiu; Simon C. Fleming; Ian H. White, Editor(s)

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