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Fault-Tolerant Fiber-Optic Network Using Wave-Division Multiplexing/ Demultiplexing Couplers

IP.com Disclosure Number: IPCOM000034595D
Original Publication Date: 1989-Mar-01
Included in the Prior Art Database: 2005-Jan-27

Publishing Venue

IBM

Related People

Authors:
Gopal, I Ofek, Y [+details]

Abstract

A technique is described whereby a fault-tolerant fiber-optic network, utilizes wave-division multiplexing/demultiplexing couplers to increase the availability of point-to-point wide-area networking. Transmission occurring from one node to another is full-duplex, over a single-mode fiber-optic link. The fault-tolerant fiber-optic network is a redundancy network which uses a single link so that each node consists of two identical switches. The two switches will transmit and receive over the same link through a different wavelength, utilizing wave-division multiplexing/demultiplexing couplers. Each side of the link contains a full-duplex link adapter (LA) where each adapter has a receiving side and a transmitting side. Each node utilizes several LAs.