Swamp Optics features the powerful new class of Frequency-Resolved Optical Gating (FROG) techniques. Our FROG and GRENOUILLE (pronounced gra-'new-ee) devices quickly and accurately measure the complete pulse intensity and phase vs. time and frequency, not just the autocorrelation. And, unlike autocorrelation, they make no assumptions about the pulse shape.

What's more, our devices also measure the pulse spatio-temporal distortions, spatial chirp and pulse-front tilt. And the beam spatial profile and absolute wavelength, too. The result is the most complete characterization of an ultrashort laser pulse available!

Best of all, Swamp Optics' devices require no alignment—ever. Even aligning your beam into the device for the first time is a mere ten-minute experience. Weighing as little as a kg, they're also elegant and compact—some almost fit in your pocket! And, by the way, they're inexpensive, too.

Far better than any autocorrelation, GRENOUILLE visually shows you the pulse intensity and color (instantaneous frequency) vs. time (t) and transverse position (x), beautifully revealing the complete pulse evolution and any spatio-temporal distortions that may be present. Is the pulse chirped in time? Is it chirped in space? Or does it have pulse-front tilt?

The pulse shown above has all of these distortions, and, while a 2D autocorrelation (inset plot) can barely even show the pulse length, GRENOUILLE and the QuickFrog software nicely display all of these effects in 3D and color!