Optically tunable filter based on meshed CDS-polymer MIM capacitor

ABSTRACT A new optically tunable low‐pass filter (LPF) is presented with a cutoff frequency ranging from 13.71 GHz to 14.79 GHz. Tunability is achieved based on a novel metal insulator metal (MIM) capacitor having a photorefractive insulator that shows 13% change in capacitance. The LPF has been fab...

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Bibliographic Details
Published in:Microwave and optical technology letters 2016-08, Vol.58 (8), p.1926-1929
Main Authors: Gonzalez, J. M., Delhote, N., Baillargeat, D., McGarry, S. P., Roy, L.
Format: Article
Language:English
Subjects:
Capacitance
Capacitors
Electromagnetism
Engineering Sciences
Insulators
Low pass filters
lowpass filter
Materials
Microwaves
MIM capacitor
optical tunable filter
Optics
Photonic
Photorefractivity
Tunable filters
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Summary:ABSTRACT A new optically tunable low‐pass filter (LPF) is presented with a cutoff frequency ranging from 13.71 GHz to 14.79 GHz. Tunability is achieved based on a novel metal insulator metal (MIM) capacitor having a photorefractive insulator that shows 13% change in capacitance. The LPF has been fabricated and measured, and a simple lumped element model extracted to analyze its behavior. The improved meshed MIM capacitor employed in the LPF marks a practical demonstration of an optically tuned filter. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1926–1929, 2016
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.29939