Effect of the miniband width on the characteristics of a surface-normal reflective optical modulator at 1.3μm using the Wannier-Stark effect

摘要

A surface-normal reflective optical modulator for 1.3 μm wavelength was investigated using the Wannier-Stark effect of an InP/InGaAsP superlattice. Electroabsorption properties of two devices with different miniband widths were compared. A larger extinction ratio was obtained from the modulator with the larger miniband width. The extinction ratio of 3.3 dB was achieved at 28 V. # 1997 American Institute of Physics. S0003-6951 (97)01534-9