Multichannel fiber gratings with tailored dispersion profiles for RF filtering

A wide-band continuously tunable microwave photonic filter based on a novel multichannel chirped fiber Bragg grating is demonstrated. The four-tap filter demonstrates continuous tuning from 4.5 to 14 GHz through the use of uniquely incrementing dispersion profiles written within each channel of the...

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Bibliographic Details
Published in:IEEE photonics technology letters 2005-10, Vol.17 (10), p.2173-2175
Main Authors: Hunter, D.B., Englund, M.A., Edvell, G.
Format: Article
Language:English
Subjects:
Bandwidth
Chirp
Diffraction gratings
Dispersions
Fiber Bragg gratings
Fiber gratings
Fibers
Filtering
Microwave filters
Microwave photonics
Multichannel
Optical filters
Optical signal processing
Optical tuning
photonic microwave filters
Radio frequency
transversal filters
Tuning
Wavelengths
Wideband
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Description
Summary:A wide-band continuously tunable microwave photonic filter based on a novel multichannel chirped fiber Bragg grating is demonstrated. The four-tap filter demonstrates continuous tuning from 4.5 to 14 GHz through the use of uniquely incrementing dispersion profiles written within each channel of the grating. This allows for a simplified tuning method based on the collective wavelength tuning of a single multiwavelength optical source over a narrow wavelength range.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2005.853521