Carrier-induced optical bistability in silicon ring resonators

Qianfan Xu, Michal Lipson
2006 Optics Letters  
We demonstrate optical bistability in a micrometer-sized silicon ring resonator based on the free-carrier dispersion effect in silicon. We measure the transfer function of the resonator showing a hysteresis loop with an input optical power of less than 10 mW. The influence of the thermal optical effect, which is minimized in the experiment by use of nanosecond pulses, is evaluated theoretically. Applications include sequential logic operations for all-optical routing.
doi:10.1364/ol.31.000341 pmid:16480202 fatcat:45hd4wcggzhmdnmu4ypze6gevi