Use of long-wavelength devices for analog optical-fiber loops

Abstract

Abstruct-This paper reports on experimental investigations in the use of available long-wavelength (1.3-1.55-pm) devices in wide-band analog optical-fiber loops assumed functioning in a conventional starconfigured switched network. Since for economic reasons analog TV transmission will remain attractive for the foreseeable future, the objective of this work is to extend loop length from 2 km (now feasible) to about 10 km. Distances of up to 10 km are needed to accomme date three or four television channels (each switchable) and narrowband (NB) services.It is shown that with available "experimental" long-wavelength LED's and p-i-n photodiodes distances up to about 10 km are feasible.