Showing papers on "Optical Transport Network published in 1981"
TL;DR: The fiber optic communication technology is maturing rapidly and it offers enor-mous advantages over unguided atmospheric optical propagation systems, however, there is a variety of applications for which fiber systems are impractical and for which atmospheric optical systems may be preferred.
Abstract: Fiber optic communication generally comes to mind first when one thinks or speaks of optical communication. In fact, the two terms are often used synonymously. Indeed, the fiber optic communication technology is maturing rapidly and it offers enor-mous advantages over unguided atmospheric optical propagation systems. However, there is a variety of applications for which fiber systems are impractical and for which atmospheric optical systems may be preferred. For example, short-haul, over-the-horizon links in areas where cable real estate rights are unobtain-able, or where an optical broadcast mode is desired, or for space-to-earth optical links.
1 citations
TL;DR: In this paper, the components for fiber-optic links are discussed and general trends in fiber optical communication research and corresponding activities in component development are outlined, namely: higher performance and lower component cost for modern systems, transition to longer wavelength systems, more complex systems including optical signal processing.
Abstract: The paper deals with the components for fibre-optic links. In the first part, general trends in fibre optical communication research and corresponding activities in component development are outlined, namely: - higher performance and lower component cost for modern systems, - transition to longer wavelength systems, - more complex systems including optical signal processing. In the second part, the performance of injection lasers as sources for optical systems is discussed in more detail. In this connection stripe-geometry lasers with gain-guiding and index-guiding are compared with respect to such parameters as spectral behaviour, noise properties and sensitivity to optical feedback.