OPTICAL-FIBER NETWORK STRUCTURE

NTT is promoting the construction of an optical fiber network as an ac cess network that can provide a variety of narrowband to broadband ser vices both flexibly and economically. This paper describes the current deployment policy for this optical fiber network as the first step to wards Fiber-To-The-Home (FTTH). The network employs a flexible and hig hly reliable optical fiber/optical fiber cable distribution configurat ion, and requires an advanced and flexible operating system to maintai n and operate it. The operating system consists of various component s ystems and can change its own configuration. This paper describes the current state of development in optical fiber network element technolo gy and operation technology.