New design for a variable optical attenuator based on a bent channel waveguide

S. Tomljenovic-Hanic; W. Krolikowski

doi:10.1007/s00340-003-1235-2

New design for a variable optical attenuator based on a bent channel waveguide

S. Tomljenovic-Hanic^*
, W. Krolikowski

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	19-23
Number of pages	5
Journal	Applied Physics B: Lasers and Optics
Volume	77
Issue number	1
DOIs	https://doi.org/10.1007/s00340-003-1235-2
Publication status	Published - Aug 2003

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abstract = "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.",

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AB - 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.

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New design for a variable optical attenuator based on a bent channel waveguide

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