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Asynchronous cross correlation autocalibration using a split-beam time-reference
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DOI：10.1007/s00340-025-08591-z.png)
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Abstract
En 中文
The characterisation technique of asynchronous cross-correlation that uses a known auxiliary reference laser to measure the duration of unknown ultrashort test laser pulses has been improved by adding a delayed copy of the reference laser pulse, creating a known time reference for autocalibration. The calibrated delay is formed by partially inserting a thin opti-cal plate into the reference beam. This modified technique, which provides significantly higher precision than the standard asynchronous cross-correlation technique, was used to measure the duration of ultrafast pulses in the ultraviolet region at a wavelength unsuited to the use of common autocorrelation techniques. The split-beam principle can also be extended to include spectral characterisation of ultrashort pulses.
Keywords:
MULTIPHOTON INTRAPULSE INTERFERENCE
PHASE CHARACTERIZATION
LASER-PULSES
GENERATION
AMPLITUDE
Journal
A
IF:
2
Papers:
114
Citations:
0