High-speed all-optical switching in ion-implanted silicon-on-insulator microring resonators

作者：Foerst Michael; Niehusmann Jan; Ploetzing Tobias; Bolten Jens; Wahlbrink Thorsten; Moormann Christian; Kurz Heinrich

来源：Optics Letters, 2007, 32(14): 2046-2048.

DOI：10.1364/OL.32.002046

We demonstrate high-speed all-optical switching via vertical excitation of an electron-hole plasma in an oxygen-ion implanted silicon-on-insulator microring resonator. Based on the plasma dispersion effect the spectral response of the device is rapidly modulated by photoinjection and subsequent: recombination of charge carriers at artificially introduced fast recombination centers. At an implantation dose of 1 x 10(12) cm(-2) the carrier lifetime is reduced to 55 ps, which facilitates optical switching of signal light in the 1.55 mu m wavelength range at modulation speeds larger than 5 Gbits/s.

• 出版日期2007-7-15