Abstract
Symmetric-self-electrooptic effect device (S-SEED), consisting of two multiple quantum well (MQW) p-i-n diodes connected in series, has been one of the most promising optical bistable devices.[1] Conventional S-SEED based on quantum confined stark effect, however, requires large external reverse bias to induce sufficient electric field difference between two diodes, which inevitably entails complex metal wiring and causes increases in switching energy and ohmic heating.PI Therefore, nonbiased optical bistability (NOB) would be an attractive characteristic for fast switching speed, low switching energy, and lay-out simplification in all-optical parallel switching systems if the NOB is realized with moderate reflectivity change (ΔR), contrast ratio (CR) and bistability loop width (Δ).
© 1995 Optical Society of America
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