AIP Digital Archive
Electrical Engineering, Measurement and Control Technology
We have developed a low-cost rapid-scanning autocorrelator which enables us to monitor picosecond optical pulses up to almost 100 ps. To achieve wide-scan range, each arm of a Michelson-type interferometer is scanned 180° out of phase by using audio speakers, and also only one-half of a full autocorrelation waveform of the pulses is observed. The present apparatus is usefully used to measure about 80-ps pulses generated from a cw mode-locked Nd:YAG laser.
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