Ultrafast optoelectronics

High-speed optoelectronics is a rapidly advancing area driven by the need for higher-speed fiber-optic transmission systems. This area is reviewed, with attention given to high-speed semiconductor lasers, mode-locked semiconductor lasers, and high-speed photodetectors. It is concluded that the prospects look good for expanded use of the large bandwidth capability of optical fiber. This expansion is driven by the increased demands of wideband video and data transmission. It is projected that, with the reduction of transport limitations in semiconductor lasers, bandwidths of semiconductor lasers will soon exceed 30 GHz and operation at 40 Gb/s is possible. Advances in high speed electronics should allow the goal of 40-Gb/s transmission to be realized over the next five years.<>