Optical Fiber Links for Telecommunications. Part One

摘要

The purpose of the report is to provide a physical understanding of fiber optics communications. The report covers the basics of light guidance in optical fibers from both geometrical and waveguide points of view. This includes attenuation and the effects of pulse broadening on information rate. Light sources, detectors and coupling are also covered with an emphasis on semiconductor devices. Finally, the present state and future prospects of integrated optics are discussed. Communication systems using fiber optics have advantages over conventional systems. These advantages are due mainly to the high bandwidths possible at optical frequencies and to the fact that glass fibers are not electrical conductors. Fiber optics may be the answer to problems of electromagnetic interference, electrical isolation and security. These systems will be useful where high bandwidth, small size, cable flexibility and low weight are needed. (Author)