Evolution of Gigabit Lightwave Transmission Systems

Abstract

Lightwave transmission systems have rapidly become the technology of choice for the transport needs of an increasingly information‐driven society. Always pioneers in this relatively young but technologically explosive media, AT&T is moving forward rapidly with the deployment of lightwave technology with ever‐increasing transmission speeds to satisfy the continually growing quality and bandwidth expectations of the competitive information‐services marketplace. After briefly tracing the historical evolution of AT&T lightwave products, this article focuses on development and deployment plans for the next several years as the technology takes a giant step into the gigabit arena, a capability almost undreamed of a decade ago. The article concludes with a look at a transition wave‐division‐multiplexing strategy and some predictions for the lightwave technology environment of the early 1990s.

AT&T Network Architecture Evolution

“…(Rogalski discusses the facility network plans in his paperon lightwave transmission systems. 3) Access. AT&T will provide a full-featured ISDN capability to serve both large and small customer locations.…”

In-service Single-mode Fiber Monitoring System with Wavelength Division Multiplexing

“…Recently, a very large capacity long-haul transmission system achieving gigabit-per-second capacity with repeater spacings of up to 70km at 1.55 μπι, was developed to make broadband services [1,2]. Recently, a very large capacity long-haul transmission system achieving gigabit-per-second capacity with repeater spacings of up to 70km at 1.55 μπι, was developed to make broadband services [1,2].…”