Materials, Photonic Devices, and Sensors

Highly tunable microwave and millimeter wave filtering using photonic technology

[+] Author Affiliations
Joe Seregelyi

Health Canada, 269 Laurier Avenue, Ottawa, K1A 0K9, Canada

Ping Lu, Stephen J. Mihailov

National Research Council of Canada, 100 Sussex Drive, Ottawa, K1A 0R6, Canada

Stéphane Paquet

TeraXion Inc., 2716 Rue Einstein, Québec, G1P 4S8, Canada

Dritan Celo

Huawei Canada, 303 Terry Fox Drive, Kanata, K2K 3J1, Canada

Opt. Eng. 54(5), 057102 (May 07, 2015). doi:10.1117/1.OE.54.5.057102
History: Received February 8, 2015; Accepted April 7, 2015
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Abstract.  The design for a photonic microwave filter tunable in both bandwidth and operating frequency is proposed and experimentally demonstrated. The circuit is based on a single sideband modulator used in conjunction with two or more transmission fiber Bragg gratings (FBGs) cascaded in series. It is demonstrated that the optical filtering characteristics of the FBGs are instrumental in defining the shape of the microwave filter, and the numerical modeling was used to optimize these characteristics. A multiphase-shift transmission FBG design is used to increase the dynamic range of the filter, control the filter ripple, and maximize the slope of the filter skirts. Initial measurements confirmed the design theory and demonstrated a working microwave filter with a bandwidth tunable from approximately 2 to 3.5 GHz and an 18 GHz operating frequency tuning range. Further work is required to refine the FBG manufacturing process and reduce the impact of fabrication errors.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Joe Seregelyi ; Ping Lu ; Stéphane Paquet ; Dritan Celo and Stephen J. Mihailov
"Highly tunable microwave and millimeter wave filtering using photonic technology", Opt. Eng. 54(5), 057102 (May 07, 2015). ; http://dx.doi.org/10.1117/1.OE.54.5.057102


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