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Proceedings Paper

Low Operating Current (LOC) LEDs And Their Applications To Subscriber Loop Networks
Author(s): L. W. Ulbricht; D. M. Fye; M. J. Teare; R. B. Lauer
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Paper Abstract

Fiber optics is slowly, but steadily, moving into the telephone loop plant environment. Initially the key to movement of fiber optics into the telephone loop plant is cost and reliability. Trends toward low cost and high reliability appear in the declining prices of single-mode fiber and in an emerging interest in light emitting diodes as the optical source in short-distance single-mode fiber links. The attractiveness of an LED used with single-mode fiber is based on its potentially low cost, its potentially high reliability, and the reduced transmitter complexity it makes possible. By using present LED technology, it is possible to design single-mode lightwave systems that can transmit data at the DS3 rate over more than 10 km and over more than 20 km at the DS1 rate. It is expected that with future improvements in LED technology, it may be possible to achieve transmission spans of over 5 km at 565 Mb/s and of over 10 km at 140 Mb/s. Such system flexibility addresses nearly every emerging requirement for transport in the telephone loop plant.

Paper Details

Date Published: 1 January 1987
PDF: 7 pages
Proc. SPIE 0841, Fiber Optic Networks and Coherent Technology in Fiber Optic Systems II, (1 January 1987); doi: 10.1117/12.967568
Show Author Affiliations
L. W. Ulbricht, GTE Laboratories Incorporated (United States)
D. M. Fye, GTE Laboratories Incorporated (United States)
M. J. Teare, GTE Laboratories Incorporated (United States)
R. B. Lauer, GTE Laboratories Incorporated (United States)

Published in SPIE Proceedings Vol. 0841:
Fiber Optic Networks and Coherent Technology in Fiber Optic Systems II
John D. Chipman; Harish R. Sunak, Editor(s)

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