Improved performances of a S-SEED using extremely shallowquantum-wells and asymmetric Fabry-Perot cavity structure |
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Authors: | Young-Wan Choi O-Kyun Kwon El-Hang Lee |
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Affiliation: | Dept. of Res., Electron. & Telecommun. Res. Inst., Taejeon; |
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Abstract: | The authors report significantly improved performances of a symmetric self-electrooptic-effect device (S-SEED), with high on-off contrast ratio (>30:l) and large optical bistability loop widths (ΔP=44%) at an applied bias of Va=0 V, i.e., with no power supply. The S-SEED is made of extremely shallow quantum wells (ESQWs) in an asymmetric Fabry-Perot (AFP) cavity structure. At Va =5 V ΔP increased by up to 95%, preserving the high contrast ratio. The reflectivity changes at Va=0 and 5 V were about 15% and 30%, respectively. These are believed to be the largest values ever reported for such structures |
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