Methods for fine-tuning the wavelength response of single-mode optical-fibre taper filters

9 April 1987

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 23 (8) , 410-411
https://doi.org/10.1049/el:19870298

Abstract

The effect of twisting and longitudinal strain on the wavelength response of taper coaxial coupler filters is examined. Both effects permit the fine-tuning of the wavelength response of the single fibre filters, but we demonstrate that a combination of twist and strain is preferred, as it is possible to eliminate residual birefringence present during the fabrication of such filters.

Keywords

WAVELENGTH RESPONSE
TWISTING
COAXIAL COUPLER FILTERS
SINGLE-MODE OPTICAL-FIBRE TAPER FILTERS
FINE-TUNING
LONGITUDINAL STRAIN
RESIDUAL BIREFRINGENCE

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