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Proceedings Paper

LED Driver And Pin Diode Receiver ICs For Digital Fiber Optic Communications
Author(s): Ben R. Eimer; John J. Geddes; J.Robert Biard
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Paper Abstract

LED driver and PIN diode receiver ICs have been developed for application in fiber optic communication systems. The LED driver provides a drive current adjustable from 25 to 150 mA in 25 mA incre-ments. The current is stabilized against changes in supply voltage and changes in the LED voltage drop due to temperature variations by an internal regulator. When coupled with a suitable PIN diode, the receiver amplifies signals as small as 250 nanoamps to TTL logic levels. The receiver IC includes automatic gain control circuitry that enables it to operate over a 36 db range of optical input signal. Both ICs operate with a single 5-volt supply. These ICs can be used with state-of-the-art fiber optic components to construct fiber optic communications links operating at data rates greater than 10 Mb/s with Manchester encoded data or 20 Mb/s with NRZ data.

Paper Details

Date Published: 21 December 1978
PDF: 6 pages
Proc. SPIE 0150, Laser and Fiber Optics Communications, (21 December 1978); doi: 10.1117/12.956714
Show Author Affiliations
Ben R. Eimer, Honeywell Inc. (United States)
John J. Geddes, Honeywell Inc. (United States)
J.Robert Biard, Spectronics Inc. (United States)


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

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