This paper presents system considerations for optical packet-switched networks using a wavelength recognizing switch (WRS) device for all-optical control and routing. Networks with the WRS device are capable of truly all-optical routing; the packet header is processed in the optical domain. This unique feature allows the self-routing of optical packets in a flexible and dynamically reconfigurable way, but introduces new challenges for the network architect. Our novel architecture combines the use of the WRS with arrayed waveguide devices in a powerful addressing mode. In this paper we explore some of the system issues, including crosstalk, noise performance, cascadability. We present experimental data on a broad-area WRS device we fabricated and assess the feasibility of an integrated version of the device.
Bogdan Hoanca, Serge Dubovitsky, Daniel Xiaoxing Zhu, Alexander A. Sawchuk, William H. Steier, Life Fellow, and P. D. Dapkus, "All-Optical Routing Using Wavelength Recognizing Switches," J. Lightwave Technol. 16, 2243- (1998)