We demonstrate a novel spectral-shearing interferometry setup for characterizing the temporal amplitude and phase of ultrashort optical pulses over an extremely wide wavelength region. By the mixing of two strongly chirped auxiliary pulses with the pulse to be characterized, two spectrally sheared replicas are generated, and their spectral interference is evaluated. We fully characterize 10-fs pulses in the visible region by sum-frequency mixing and 19-fs pulses in the ultraviolet region by difference-frequency mixing. The scheme is self-referencing and highly sensitive. The zero-additional-phase scheme does not alter the unknown pulses and yields the pulse shape at the interaction point of a spectroscopic experiment.
© 2004 Optical Society of AmericaFull Article | PDF Article
Timothy M. Shuman, Matthew E. Anderson, Jake Bromage, Chris Iaconis, Leon Waxer, and Ian A. Walmsley
Opt. Express 5(6) 134-143 (1999)
Selcuk Akturk, Mark Kimmel, Patrick O’Shea, and Rick Trebino
Opt. Express 11(1) 68-78 (2003)
Ellen M. Kosik, Aleksander S. Radunsky, Ian A. Walmsley, and Christophe Dorrer
Opt. Lett. 30(3) 326-328 (2005)