Photonic Ring Resonator Research Articles

Photonic microwave filtering using coherently coupled integrated ring resonators

Filtering of microwave signals using coupled photonic ring resonators fabricated in the silica waveguide technology is described. Integrated thermo-optic phase shifters allow for control of the optical phase and the passband shape. Tuning of the microwave passband via optical wavelength and phase is demonstrated. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 21: 90–93, 1999.