Optical wavelength-division multiplexing high-speed switching system for B-ISDN

Abstract

An optical wavelength-division multiplexing (WDM) subscriber network architecture and an economical introduction scenario for B-ISDN services are proposed. B-ISDN services are integrated into an optical WDM subscriber network by using a different wavelength for each service. Key technologies for each of the introduction scenario's five stages are described, and some preliminary results obtained with them are presented. These technologies are (1) optical WDM subscriber lines, (2) a multichip space-division switching module, (3) time-and wavelength-division optical distribution, (4) a highthroughput ATM switching module, and (5) a time-division 52-Mb/s switching module with a throughput of 9.6 Gb/s.

Novel all‐optical time‐division multiple‐access technique for multirate data communications

“…For example, a multirate network can support TV and high-definition television ͑HDTV͒ channels for 52 and 156 Mbit/s, respectively. 4 Moreover, the synchronous digital hierarchy ͑SDH͒ has been adopted as an international standard, 5 which is used to multiplex various digital signals with rates at 50, 100, 150, and multiples of 150 Mbit/s. High-speed multirate OTDMA networks can also be employed to interconnect many industrial telemetry systems for real-time control and communications.…”