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Proceedings Paper

Half-Duplex Fiber-Optic Data Transmission With A Semiconductor Junction Transceiver
Author(s): J. J. Geddes; P. E. Petersen; D. Chen
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Paper Abstract

Much of the data transfer in computer and process control systems takes place by half duplex data transmission. Conventional approaches to implementation of half duplex fiber optic links use a separate fiber for each transmission direction or a single fiber for both directions and a Y branch. If an LED is used as a semiconductor junction transceiver (SJT) for both emission and detection of optical signals, half duplex data transmission links can be implemented with a single fiber and a single optoelectronic device at each end of the fiber. Investigation of the suitability of reverse biased LED's for use as detectors shows that responsivities higher than 1/5 that of a PIN diode can be achieved. Although the reverse biased capacitance of the LED is larger than the PIN diode, rise times as short as 3 nanoseconds have been measured for LED's used in the detector mode. Comparison of Burrus, edge emitting and large area surface emitting diodes shows that the Burrus and large area surface emitting diodes offer the best detector performance. Experimental results for a half duplex transceiver using an SJT will be presented.

Paper Details

Date Published: 21 December 1978
PDF: 6 pages
Proc. SPIE 0150, Laser and Fiber Optics Communications, (21 December 1978); doi: 10.1117/12.956713
Show Author Affiliations
J. J. Geddes, Honeywell Corporate Material Sciences Center (United States)
P. E. Petersen, Honeywell Corporate Material Sciences Center (United States)
D. Chen, Honeywell Corporate Material Sciences Center (United States)

Published in SPIE Proceedings Vol. 0150:
Laser and Fiber Optics Communications
Monte Ross, Editor(s)

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