Novel Technique for Implementing Incoherent Microwave Photonic Filters With Negative Coefficients Using Phase Modulation and Single Sideband Selection

We propose a novel configuration to implement microwave photonic filters featuring positive and negative coefficients which is based on the use of a single phase modulator to modulate an array of optical sources followed by a filtering stage to choose the optical carrier and higher or lower radio-fr...

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Bibliographic Details
Published in:IEEE photonics technology letters 2006-09, Vol.18 (18), p.1943-1945
Main Authors: Mora, J., Capmany, J., Loayssa, A., Pastor, D.
Format: Article
Language:English
Subjects:
Arrays
Feasibility
Filtering
Filters
Filtration
Microwave antenna arrays
Microwave filters
Microwave photonics
Microwave theory and techniques
Modulators
Notch filters
Optical arrays
Optical filters
Optical modulation
Phase modulation
Phased arrays
Radio frequency
Single sideband
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Summary:We propose a novel configuration to implement microwave photonic filters featuring positive and negative coefficients which is based on the use of a single phase modulator to modulate an array of optical sources followed by a filtering stage to choose the optical carrier and higher or lower radio-frequency sideband depending on the sign of the desired coefficient. Experimental results are presented which prove the feasibility of this concept for a two tap notch filter. Filter tunability is also demonstrated
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2006.879950