Implementation of a TDM passive optical network for subscriber loop applications

Abstract

An experimental prototype system that has been implemented using a passive optical network architecture is described for subscriber loop applications. The system, known as MACNET, uses time division multiplexing and transmission over a network of single mode optical fibers and couplers to provide narrow-band digital service access to 16 customers. Experience gained from developing the system is outlined. Future transmission options are described including a fixed bit rate customer access approach to allow early network application of this technology.

Multiple Access Techniques for Fiber-Optic Networks

“…The first TDMA-based system developed and field trialed in 1989 is British Telecom's TPON, which stands for Telephony over PON [26]. Another example of a TDMA-PON is the Multiple Access Customer Network (MACNET) that was demonstrated at the prototype level by Telecom Australia and Standard Telephone & Cables, Ltd., in the same year [27]. These two systems supported the basic telephony service and some combinations of narrowband-ISDN basic rate accesses (160 kbps and 1.544/2.048 Mbps).…”

<title>Architectural considerations in the design of WDM-based optical access networks</title>

“…Since much has already been written about the design of PONs for access networks, we refer the reader to the literature for more information about the physical layer design of PONs [FR96,PB95,LS89,MC89,FPS89,WL89]. Instead, we focus in this paper on higher layer architectural considerations in the access network.…”

“…The focus on a passive architecture was motivated by the need for low cost, simple maintenance and powering considerations. A number of architectures were developed and systems were demonstrated [FR96,LS89,MC89,FPS89,WL89]. The assumption was that the PON would be used to provide connectivity between the end user premise and the CO, where signals would be carried over an electronic network.…”

25-GHz Spaced Spectrum-Sliced WDM PON Using 50-GHz AWGs

“…P ASSIVE optical networks (PONs) are economic solutions for broadband access networks [1], [2]. Compared with time-division multiplexed (TDM) PONs, wavelength division multiplexed (WDM) PONs can provide dedicated high capacity services such as multiple high quality videos and large volumes of data to each subscriber [3], [4].…”