An experimental technique for single-shot generation of the sonogram of an ultrashort laser pulse is demonstrated. The method is based on the time gating of a spectrally decomposed test signal, transferring its spectral phase into a spatial phase, and the spatial filtering of the signal to produce a sonogram. The technique is evaluated experimentally, producing sonograms for linearly and nonlinearly chirped femtosecond laser pulses. The single-shot technique permits reconstruction of ultrashort pulse complex amplitude profiles and is useful for showing the signal in real time.
© 2002 Optical Society of America
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.0320) Ultrafast optics : Ultrafast optics
(320.7100) Ultrafast optics : Ultrafast measurements
Dmitriy Panasenko, Pang-Chen Sun, Nikola Alic, and Yeshaiahu Fainman, "Single-Shot Generation of a Sonogram by Time Gating of a Spectrally Decomposed Ultrashort Laser Pulse," Appl. Opt. 41, 5185-5190 (2002)