✦ LIBER ✦

Contents: Laser Phys. Lett. 4/2008

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 399 KB
Volume: 5
Category: Article
ISSN: 1612-2011
DOI: 10.1002/lapl.200890003

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✦ Synopsis

The figure shows the set up and measured signal for the Spatially-Encoded Arrangement for SPIDER (SEA-SPIDER). The test pulse (red) is mixed with two chirped ancillary pulses in a nonlinear crystal. The angle between the ancilla pulses leads to upconversion of the test pulse into two replicas propagating in slightly different directions. When these pulses interfere in a spectrometer, this gives tilt fringes in the spatially-resolved dimension of a two-dimensional spectral interferogram. From this information, it is possible to characterize not only the temporal shape of an optical pulse, but also any space-time coupling in the beam. It is especially suited to the characterization of complex ultrabroadband pulses, since it requires no replication of the test pulse, and works at the sampling limit for the spectrum. (Cover picture:

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