The general output characteristics of high quality factor microring resonators with modulated coupling strengths are derived. The results are applied to the case of a microring integrated with a Mach–Zehnder interferometer coupler to investigate the amplitude, linearity, distortion, and chirp of the output. These modulators can be designed to give low-distortion, high extinction ratio, chirp-free outputs at modulation rates only limited by the maximum modulation rate of the coupler or the free spectral range frequency of the resonator.
© 2009 IEEE
Wesley D. Sacher and Joyce K. S. Poon, "Characteristics of Microring Resonators With Waveguide-Resonator Coupling Modulation," J. Lightwave Technol. 27, 3800-3811 (2009)