Silica nanotaper optics with Bragg-fiber structure

Lin Ma; Takashi Katagiri; Yuji Matsuura

doi:10.1117/12.688728

9 October 2006 Silica nanotaper optics with Bragg-fiber structure

Lin Ma, Takashi Katagiri, Yuji Matsuura

Proceedings Volume 6351, Passive Components and Fiber-based Devices III; 63510Z (2006) https://doi.org/10.1117/12.688728
Event: Asia-Pacific Optical Communications, 2006, Gwangju, South Korea

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.

Citation Download Citation

Lin Ma, Takashi Katagiri, and Yuji Matsuura "Silica nanotaper optics with Bragg-fiber structure", Proc. SPIE 6351, Passive Components and Fiber-based Devices III, 63510Z (9 October 2006); https://doi.org/10.1117/12.688728

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