Abstract
Technological progress and increasing user demands are providing a strong impetus for developing high-speed communications networks capable of delivering large payloads under strict delay constraints. STARNET, a broadband optical wavelength-division-multiplexing (WDM) network intended to provide a wide variety of network services, was designed at the Optical Communication Research Laboratory of Stanford University.1 Over a single physical passive-star-topology network, STARNET offers all users both a moderate-speed (125-Mbit/s) packet-switched subnetwork and a reconfigurable high-speed circuit-switched subnetwork. These goals are achieved by using coherent detection and a combined amplitude-shift-keying/phase-shift-keying (ASK/PSK) modulation format. Reference 1 provides the principle of operation of STARNET; Ref. 2 provides experimental results of the combined modulation technique.
© 1994 Optical Society of America
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