Optical Amplifiers for WDM/DWDM Systems

The current efforts of research and development are aiming at increasing the total capacity of medium and long-haul optical transmission system. At the same time deregulation of telecommunication markets and global success of the internet has driven the demand for higher and higher system capacity. The transmission distance of any fibre-optic communication system is eventually limited by fibre losses. Currently the optical amplifiers are used which directly amplify the transmitter optical signal without conversion to electric forms. It amplifies the signal simultaneously and decreases attenuation.Further this book is also targeted at research development and design engineers from the teams in manufacturing industry academia and telecommunication industries.