Integrated quantum well self electro-optic effect device: 2 x 2 array of optically-bistable switches.

We demonstrate 2 x 2 arrays of optically-bistable devices with very uniform optical characteristics. They are fabricated from an integrated Self Electro-optic Effect Device (SEED) structure consisting of a quantum well p-i-n diode grown in series with a load photodiode. Operating power can be optically controlled with a separate beam between ~ 40 pW and > 470 muW with associated switching times of ~ 10s and 2 mus.