Banyan switch

About: Banyan switch is a research topic. Over the lifetime, 242 publications have been published within this topic receiving 3452 citations.

Study for performance of thermo-optic matrix switches with flexible switching units and Banyan networks

Abstract: A large-scale optical matrix switch is generally composed of a permutation of switching units connected by a network of optical signal paths. In this work, a configuration of optical matrix switches with flexible switching units and Banyan networks is proposed. With Banyan networks, silica-based waveguides, and two types of switching units, the insertion loss of the optical matrix switch configuration is extensively studied for serial scales from 2×2 to 64×64. Typically for an 8×8 optical matrix switch, the insertion losses are achieved 3.0 dB for a rearrangeably nonblocking configuration with two-state 2×2 switching units, and 4.7 dB for a strictly nonblocking configuration with three-state 2×2 switching units when the intersection angle is designed as 30 deg. Even at the released intersection angle of 20 deg, the insertion losses of 4.0 and 5.8 dB can be achieved for the rearrangeably nonblocking and strictly nonblocking configurations, respectively. In addition, the blocking property and the scalability of the large-scale matrix optical switches with this regime are analyzed.

Integrated high-speed 1 × 4 digital Y-branch switch array with passive taper fanouts for fibre interconnection

Abstract: An integrated high-speed 1 × 4 switch array on InP-substrate using 8 GHz Y-branch switch elements is described. This switch array is suitable for optical time division multiplexing (OTDM) and demultiplexing data at 10 Gbit/s over a wide optical bandwidth. The channel-channel isolation and insertion loss are 18 and 15 dB, respectively, which may be improved by optimisation of the switch design and fabrication techniques.

The analysis of a phase-delayed optical two-state switch

Abstract: A novel optical waveguide phase-delayed two-state switch that consists of a pair of asynchronous waveguides is presented. The performance of the switch is analyzed in detail. The simple structure of the device may lead to an easy implementation in optical switching, optical interconnects, and sensor applications. >

Optimum switching architectures using D-fiber optical space switches

Abstract: An optical space switch based on D-fibers has been fabricated and its use in switching networks investigated. The characteristics of a switching network depend not only on the nature of the switches used, but also on the architecture utilized. In general, architectural complexity can be used in a trade with switch specification to achieve a given network behavior. Several architectures are reviewed and their consequences on the switch specification evaluated. The principles of a D-fiber space switch are described, and the switching characteristics predicted and measured. The characteristics of the switch, within its optimum architecture, enable a fully transparent network, i.e. totally nonblocking with minimum restriction on optical bandwidth, to be realized. The limits to the size of such a network are calculated using the measured characteristics of a switch fabricated in the laboratory. >

A 0.8- mu m BiCMOS sea-of-gates implementation of the tandem banyan fast packet switch

Abstract: A simple, high-performance architecture for fast packet switching, called the tandem banyan switching fabric, has been proposed. The authors report on the implementation of the routing functionality of this architecture, augmented with self-testing and fault-recovery capabilities, using a high-performance BiCMOS sea-of-gates on a 0.8- mu m technology. >