Agradecimentos: The authors thank M. Soltani and B. Guha for productive discussions. This work was supported in part by the Defense Advanced Research Projects Agency (DARPA) under the Zeno-based OptoElectronics program, the Army Research Development and Engineering Command (ARMYRDECOM) Award No. W911NF-11-1-0435 supervised by Dr. Jag Shah, and the National Science Foundation under Grant No. 1143893 and was performed in part at the Cornell NanoScale Facility, a member of the National Nanotechnology Infrastructure Network, which is supported by the NSF. Lian-Wee Luo acknowledges a fellowship from Agency of Science, Technology and Research (A*STAR), Singapore Ver menos

Abstract: We demonstrate power insensitive silicon microring resonators without the need for active feedback control. The passive control of the resonance is achieved by utilizing the compensation of two counteracting processes, free carrier dispersion blueshift and thermo-optic redshift. In the fabricated devices, the resonant wavelength shifts less than one resonance linewidth for dropped power up to 335 mu W, more than fivefold improvement in cavity energy handling capability compared to regular microrings Ver menos