Light-emitting diodes as measurement devices for femtosecond laser pulses.
We present results showing that, when it is used as a photodetector, a light-emitting diode (LED) has a power-dependent response that can be used for sensitive detection and characterization of picosecond and femtosecond laser pulses. A characterization of a typical LED is presented at 800 nm, and we demonstrate how this effect can be used to construct an extremely compact novel autocorrelator based on a Wollaston prism.
Reid
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Padgett
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McGowan
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Sleat
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Sibbett
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