Tunable Microwave Single-Bandpass Photonic Filter Based on Amplified Mems-Based Gires-Tournois Interferometer
Kotb, Hussein; Sabry, Yasser M.; Abdallah, Mohab S.; Sayed, Marwan O.M.; Omran, Haitham;
Abstract
We demonstrate a compact microelectromechanical systems based tunable single bandpass microwave photonic filter (MPF). A MEMS gold-platted micro-mirror facing cleaved optical fiber forms a tunable miniature Gires-Tournois interferometer (GTI). The micro-mirror was fabricated by Deep Reactive Ion Etching (DRIE) on silicon on insulator (SOI) wafer. A semiconductor optical amplifier (SOA) is employed simultaneously as a source of a broad optical spectrum and as an optical amplifier. A chirped-fiber Bragg grating is used as a dispersive delay line to provide a time delay to each wavelength slice. The simulation and experimental results are in good agreement showing a linear variation of the MPF center frequency with the separation between the micro-mirror and the fiber facet. The measured tuning range and tuning resolution are 1.3 to 2.5 GHz and 5.85 MHz/μm, respectively. The measured value of the stopband attenuation is more than 20 dB. The maximum value of the 3-dB bandwidth is 258 MHz.
Other data
Title | Tunable Microwave Single-Bandpass Photonic Filter Based on Amplified Mems-Based Gires-Tournois Interferometer | Authors | Kotb, Hussein ; Sabry, Yasser M.; Abdallah, Mohab S.; Sayed, Marwan O.M.; Omran, Haitham | Keywords | and Semiconductor optical amplifier | Chirped fiber Bragg grating | Electro-optical modulator | Gires-Tournois interferometer | MEMS | Microwave photonics filter | Issue Date | 8-Sep-2020 | Journal | National Radio Science Conference, NRSC, Proceedings | ISBN | 9781728168197 | DOI | 10.1109/NRSC49500.2020.9235092 | Scopus ID | 2-s2.0-85096226439 |
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