Optoelectronic devices in optical fiber communications

Optoelectronic devices used in optical fiber communications are reviewed. The basic concepts, performance, and research progress of various key devices used in optical transponders, detectors and repeaters, such as laser diodes, optical modulators, photodiodes, and optical amplifiers, are described. An introduction to conventional integrated devices, as well as the new generation integrated technology based on nano-structure optoelectronics, is also given.