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arXiv:1011.1954cond-mat.other

Driving LED in a Nanosecond Regime by a Fast Operational Amplifier

Joachim Rose, Stella Bradbury, Isabel Bond, Paul Ogden, Andrew Price, Richard Oliver, Yerbol Farkhatuly Khassen

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Abstract

It is widely believed that the generation of high speed optical signals is not the job for an LED. However this work is done to show that there are techniques which can be used to produce nanosecond square pulses from a diode. Rise and fall times of a typical 10ns long signal were 1-2 ns and the intensity of the emission could be controlled by the supply voltage. The wavelength of the radiation was 472 nm, which is blue in colour, but any longer or even shorter wavelengths can similarly be used. The consistency of the experiment and its theoretical model was analysed by computer simulations using OrCAD and PSPICE.

arXiv comments
9 pages, 10 figures
Journal reference
DOI
Subjects
cond-mat.otherOther Condensed Matter physics.opticsOptics

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  1. Li-Fi Gets Ready to Compete with Wi-Fi 1 comment

    • A note -- if you're linking to arXiv, it's better to link to the abstract (http://arxiv.org/abs/1011.1954) rather than directly to the PDF. From the abstract, one can easily click through to the PDF; not so the reverse. And the abstract allows one to do things like see different…

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