T. Kawazoe et al., HIGHLY REPETITIVE PICOSECOND POLARIZATION SWITCHING IN TYPE-II ALGAASALAS MULTIPLE-QUANTUM-WELL STRUCTURES/, JPN J A P 2, 32(12A), 1993, pp. 120001756-120001759
We have demonstrated highly repetitive picosecond polarization optical
switching operation of type-II quantum well structures at room temper
ature. The switching mechanism is due to the fast GAMMA-X interlayer s
cattering of electrons and the fast spin relaxation of holes. Accordin
g to our experimental results, the switching time is less than 1 ps, t
he switching power is as low as 3 nJ/cM2, and the switching repetition
rate is more than 80 GHz. Moreover we point out the possibility of co
ntinuous optical switching operation for future applications.