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SUMMARY We have developed InGaAs-based VCSELs operating around 1.1 μm for high-speed optical interconnections. By applying GaAsP barrier layers, temperature characteristics were considerably improved compared to GaAs barrier layers. As a result, 25 Gbps 100 • C error-free operation was achieved. These devices also exhibited high reliability. No degradation(More)
Endogenous gibberellins (GAs) in the young leaves and xylem sap of tea plants (Camellia sinensis L.) were analyzed by GC-MS. The following GAs were identified by comparing their mass spectra and KRIs with those of authentic specimens: GA9 and GA20 in the leaves; GA9, GA12, GA15, GA20, GA44, GA51 and GA53 in the xylem sap.
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