Ultra-wideband coherent optical LANs
Springer-Verlag, 1993 - Computers - 97 pages
This book is the result of the work of an interdisciplinary group of European researchers who have attempted to give birth to a new fibre communication network concept by exploiting the potential benefits of optical coherent transmission for local area networks (LANs). The project targeted the development of the necessary building blocks to show experimentally the performance and the flexibility built into the proposed concept of a multi-channel ultra-wideband network. The system concept developed within the project associates optical frequency division multiplexing with a suitable network architecture andmanagement techniques to allow very high flexibility and efficiency in handling simultaneous transmission over the network (on each optical frequency) of multiple virtual channels each operating with information rates ranging from a fraction of a Mb/s up to more than 160 Mb/s. Specialised applications requiring more than the capacity provided by a single optical channel were to be dealt with by parallel transmission over more than one channel. Another important objective of the system was tomake the network open to any future evolution by self-reconfiguration without hardware changes. The book consists of a collection of technicalreports and is intended as a support for professionals who wish to take advantage of design experience gained in an industrial environment.It is not intended to be an academic text and a background knowledge of the main concepts of digital communications is assumed.
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UCOL Optical Architecture
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Access Control active phase modulation applications architecture ATM Adaptation Layer ATM cell ATM switch Automatic Gain Control bandwidth basic bit rate boards capacity clock recovery comb line communication components connection demodulator detection detector developed device distributed DPSK DPSK demodulator EDFA erbium external cavity fibre filter frame frequency comb front-end functions gain Gb/s implementation input insertion loss interconnection interface L_ME laser diode layer linewidth Management Entity master laser Mb/s measurements mode multichannel N_ME noise operating optical amplifier optical channels oscillator output power packet parameters passive phase modulation penalty performance photodiodes polarisation polarization diversity power budget preamplifier protocol pump Queue realized receiver sensitivity reference comb requirements S_ME scheme shown in Fig signal slots spectral splitters station synchronization TDMA TE/TM techniques TGDS traffic transmitter tunable tuning UAUs UCOL UCOL network wavelength workstation