supported by the National Natural Science Foundation of China(Grant Nos.61222501 and 61335004);the Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No.20111103110019)
The maximum power conversion efficiencies of the top-emitting,oxide-confined,two-dimensional integrated 2×2 and4×4 vertical-cavity surface-emitting laser(VCSEL) arrays with the oxide-apertures of 6 μm,16 μm,19 ...