Measuring device and measuring method
AssigneeNational Yang Ming Chiao Tung University
InventorsChih-Wei Luo, Yi-Chen Liu, Tien-Tien Yeh
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Abstract
An optical pulse measuring method measuring an optical pulse generated from a pulse light source is provided. The method includes: splitting the optical pulse and then focusing them at a measuring point, so as to generate gas plasma by the autocorrelation of the split optical pulses; receiving the sound signal from the gas plasma and generate a plasma sound signal; and using the plasma sound signal to calculate the characteristics of the optical pulse. A measuring device is also provided.
Claims12
An optical pulse measuring method, measuring an optical pulse generated from a pulsed light source, including:
- splitting the optical pulse and then focusing the split optical pluses at a measuring point, so as to generate gas plasma and autocorrelation with the split optical pulses, wherein an energy density of the split optical pulses is lower than a breakdown threshold of air;
- receiving sound from the gas plasma and generating a plasma sound signal;
- and
- using the plasma sound signal to calculate the characteristics of the optical pulse.
An optical pulse measuring device, measuring an optical pulse generated from a pulsed light source, including:
- an optical module, splitting the optical pulse and then focusing the split optical pluses at a measuring point, so as to generate gas plasma and autocorrelation with the split optical pulses, wherein an energy density of the split optical pulses is lower than a breakdown threshold of air;
- sound receiver receiving sound from the gas plasma;
- and
- processor connecting to the sound receiver;
- wherein the sound receiver converts the sound of the gas plasma into plasma sound signal, and passes the plasma sound signal to the processor;
- the processor calculates the characteristics of the optical pulse according to the plasma sound signal.
Dependencies are inferred from the claim text.