LED Driver And Pin Diode Receiver ICs For Digital Fiber Optic Communications

Ben R. Eimer; John J. Geddes; J.Robert Biard

doi:10.1117/12.956714

21 December 1978 LED Driver And Pin Diode Receiver ICs For Digital Fiber Optic Communications

Ben R. Eimer, John J. Geddes, J.Robert Biard

Proceedings Volume 0150, Laser and Fiber Optics Communications; (1978) https://doi.org/10.1117/12.956714
Event: 22nd Annual Technical Symposium, 1978, San Diego, United States

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.

Citation Download Citation

Ben R. Eimer, John J. Geddes, and J.Robert Biard "LED Driver And Pin Diode Receiver ICs For Digital Fiber Optic Communications", Proc. SPIE 0150, Laser and Fiber Optics Communications, (21 December 1978); https://doi.org/10.1117/12.956714

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