Semiconductor Optical Modulators

The introduction of GaAs/AlGaAs double heterostructure lasers marks a new era in the application of compound semiconductor materials to microwave and optical technologies. A variety of semiconductor materials and combinations have been investigated and applied to present commercial uses, with the devices operating at wide frequencies and wavelengths. Semiconductor modulators are typical examples of this technical evolution, and have been developed for commercial use. This book provides a comprehensive account of semiconductor modulators with historical details and experimental reports. Particular attention has been paid to multiple quantum well (MQW) modulators operating at long wavelengths, taking into account the low losses and dispersion in silica fibers occurring at around 1.3 and 1.55 mm.