Method For Single-Shot Measurement Of Picosecond Laser Pulse-Lengths Without Electronic Time Dispersion

George A. Kyrala

doi:10.1117/12.942230

4 February 1988 Method For Single-Shot Measurement Of Picosecond Laser Pulse-Lengths Without Electronic Time Dispersion

George A. Kyrala

Proceedings Volume 0832, High Speed Photography, Videography, and Photonics V; (1988) https://doi.org/10.1117/12.942230
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

A two-source shear pattern recording is proposed as a method for single-shot measurement of the pulse shape from nearly monochromatic sources whose pulse lengths are shorter than their coherence times. The basis of this method relies on the assertion that if two identical electromagnetic pulses are recombined with a time delay greater than the sum of their pulse widths, the recordable spatial pattern has no fringes in it. At an arbitrary delay, translated into an actual spatial recording position, the recorded modulated intensity will sample the corresponding laser intensity at that delay time, but with a modulation due to the coherence function of the electromagnetic pulse. Two arrangements are proposed for recording the pattern. The principles, the design parameters, and the methodologies of these arrangements will be presented. Resolutions of the configurations and their limitations will be given as well.

Citation Download Citation

George A. Kyrala "Method For Single-Shot Measurement Of Picosecond Laser Pulse-Lengths Without Electronic Time Dispersion", Proc. SPIE 0832, High Speed Photography, Videography, and Photonics V, (4 February 1988); https://doi.org/10.1117/12.942230

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