Feature

Recent Developments in GaAs-Based High-Speed Devices

Naresh Chand and Hadis Morkoc

The recent advances in the crystal growth, device concepts, and fabrication of electronic and optical devices in GaAs and other III-V semiconductors have inspired the scientists in several laboratories to work on combining both types of devices into one circuit to create a new, powerful class of highspeed optoelectronic integrated circuits for optical communications and many other high-speed applications like digital optical computers. Such an approach would enable electronic processing of optical signals on a single chip for such operations as filtering, switching, amplifying, and multiplexing.