All-optical polarization switching is demonstrated in a resonant photonic band-gap structure consisting of Bragg-spaced quantum wells (BSQWs). The switch takes advantage of the large spin-dependent optical nonlinearities and the ultrafast recovery present in BSQWs to produce large throughputs (greater than 40%), high contrast ratios (greater than 40 dB), and large optical bandwidths (∼0.6 THz), where both switching time and sample recovery time are control-pulse-width limited.
|Original language||English (US)|
|Journal||Applied Physics Letters|
|State||Published - Sep 5 2005|
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)