Femtosoft Technologies

SHG FROG Trace of a Figure-8 erbium fiber laser pulse, after travelling through 20m of fiber

Taken by Pranav Mistry at University of Auckland, New Zealand.

A note on the color table

The square root of the intensity of the FROG traces are plotted, and the color table is set to black for values less than 0.01 of the maximum. This means that the cutoff from red to black is at 0.0001 of the peak of the original FROG trace intensity. This method of plotting allows us to see the details of the trace more readily.

FROG Traces

Experimental Trace Retrieved Trace

The Retrieved Field

Electric Field Spectrum
SHG FROG
Minimum error: 0.0016255
Temporal FWHM: 557.86 fs.
Spectral FWHM: 6.0887 nm.
Time-Bandwidth Products: FWHM 0.43286; RMS 1.1009
Laplacian Time-Bandwidth Products: Temporal 0.54239; Spectral 0.59083

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