In the future information society, various kinds of services will be required in offices,
factories, homes, and communities. Fiber optic broad-band systems will play the most …

Nippon Telegraph and Telephone Corporation (NTT) has two primary aims regarding the
installation of optical fiber cables for subscriber networks as the access network: to provide …

Over the last ten years, numerous innovations in the field of fiber-optic technology have
resulted in the introduction of trunk transmission systems. In the near future, the prices of …

Two approaches to fiber-optic subscriber loop system development in Japan are described.
In the first. Approach I, NTT aims at introducing inexpensive fiber-optic subscriber loop …

Japanese local-loop networks are addressed with a special focus on ISDN and fiberoptic
systems deployment. Basic telecommunication services and local network evolution in …

The authors present a new approach for a future integrated subscriber network. Single-
mode fibers will be applied to subscriber lines as well as to the trunk system, the …

Future subscriber loops will provide various services including broad-band video. Fiber optic
technology is the key for introducing these services. The Electrical Communication …

Background In order to address the many issues raised by the BUTN, it will be useful for
background purposes to consider: a) the current stateof theart of fiber optic technology; b) …

Fiber optics has played an important role in communication networks, particularly in repeater
systems, and is expected to play a continuing role in subscriber networks to offer various …

Fiber optic media are rapidly penetrating the telecommunications network. They are used as
undersea and terrestial trunk lines, central-office loops, optical data links, and will eventually …