Frequency agile microwave photonic notch filter with anomalously-high stopband rejection

Abstract

We report a novel class microwave photonic (MWP) notch filter with a very narrow isolation bandwidth (10 MHz), an ultrahigh stopband rejection (> 60 dB), a wide frequency tuning (1-30 GHz), and flexible bandwidth reconfigurability (10-65 MHz). This record performance is enabled by a new concept of sidebands amplitude and phase controls using an electro-optic modulator and an optical filter. This new concept enables energy efficient operation in active MWP notch filters, and opens up the pathway to enable low-power nanophotonic devices as high performance RF filters.

4 pages, 5 figures

References in corpus (3)

• Comb-Based Radio-Frequency Photonic Filters with Rapid Tunability and High Selectivity
• Tailorable Stimulated Brillouin Scattering in Nanoscale Silicon Waveguides
• Si3N4 ring resonator-based microwave photonic notch filter with an ultrahigh peak rejection

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• Si3N4 ring resonator-based microwave photonic notch filter with an ultrahigh peak rejection
• Nonlinear Integrated Microwave Photonics
• Tunable narrowband microwave photonic filter created by stimulated Brillouin scattering from a Silicon nanowire
• Noise and dynamics in forward Brillouin interactions
• Tunable Photonic Radiofrequency Filter with An Ultra-high Out-Of-Band Rejection
• Brillouin spectroscopy of a hybrid silicon-chalcogenide waveguide with geometrical variations
• Low power, chip-based stimulated Brillouin scattering microwave photonic filter with ultrahigh selectivity