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New Design for a Variable Optical Attenuator Based on a Bent Channel Waveguide

Tomljenovic-Hanic, Snjezana; Krolikowski, Wieslaw

Description

We present a new method for bend loss control in a curved channel optical waveguide and employ it in a novel design of a thermo-optic variable optical attenuator. We show that the introduced asymmetric refractive index profile of the wave-guide structure, combined with the optimal placement of the heating electrodes, leads to a significant increase of the dynamic range of the attenuator.

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
URI: http://hdl.handle.net/1885/87160
Source: Applied Physics B: Lasers and Optics
DOI: 10.1007/s00340-003-1235-2

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