Generation of ultra-narrow sensing filters using cross polarisation in a linear SOI photonic crystal waveguide

John Canning; Martin Kristensen; Nina Skivesan; Cicero Martelli; Amelie Tetu; Lars Frandsen; J. Chevallier

doi:10.1117/12.785783

16 May 2008 Generation of ultra-narrow sensing filters using cross polarisation in a linear SOI photonic crystal waveguide

John Canning, Martin Kristensen, Nina Skivesan, Cicero Martelli, Amelie Tetu, Lars Frandsen, J. Chevallier

Author Affiliations +

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70041M (2008) https://doi.org/10.1117/12.785783
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

A narrow band (3dB bandwidth <2nm) transmission notch filter based on polarisation conversion within a photonic crystal waveguide is demonstrated. Signal contrast between quasi- TE and TM eigenstates reaching 40dB is achieved. Further, multiple resonant wavelength coupling between the two eigenstates is also observed. These offer a novel alternative approach to sensing and biodiagnostics compared to previous use of the band edge of a photonic crystal waveguide.

Citation Download Citation

John Canning, Martin Kristensen, Nina Skivesan, Cicero Martelli, Amelie Tetu, Lars Frandsen, and J. Chevallier "Generation of ultra-narrow sensing filters using cross polarisation in a linear SOI photonic crystal waveguide", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70041M (16 May 2008); https://doi.org/10.1117/12.785783

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