The need for broadband access is well appreciated by the telecommunications industry, and many types of broadband-access networks have been built. It is widely accepted that wired optical networks is a most promising solution to the broadband-access problem. This paper focuses on passive optical networks (PONs) because PON is a major technology today. We concentrate on the components of PONs. After brief survey of the principle of PON operation, architectures, topologies, protocols and standards, we turn our attention to the PON physical layer. We analyze the structure and elements of PON components and discuss their technical characteristics.
The exponential gtowth of traffic delivered to an individual customer both for business and personal needs puts tremendous pressure on the telecommunications networks. Because the development of the long-haul and metro networks has advanced rapidly and their capacity much eceeds demand, tremendous pressure now falls in the local networks to provide customers with access to the global telecom infrastructure. Building a broadband access network enabling fast delivery of high-volume traffic is the current task of network operators. A brief review of broadband access networks brings us to the conclusion that only wired optical networks can serve as an immediate and future solution to the "last-mile" problem. After discussin goptical access network classification, we focus mainly on passive optical networks (PON) because PON is a major technology today. From the network standpoint, we discuss the principle of PON operation, architectures, topologies, protocols and standards, design issues, and network management and services. We also discuss the main problems with PON and the use of WDM technology. From the hardware standpoint, we consider both active and passive components. We analyze the structure and elements of these components, including their technical characteristics.
A fiber-optic communications course requires a deep understanding of the physical processes of the components and systems. Unfortunately, many students in engineering technology programs lack the scientific background for such a course. Another challenge is that these students need to be trained as maintenance and control personnel. To resolve these problems, we focus our teaching on the use of corporate technical documentation.
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