Abstract

Parallel to the rising of a number of scientific and industrial applications of ultrashort laser pulses, their precise temporal characterization has become a major issue. Recently, the new pulse measurement technique of dispersion-scan (d-scan) was introduced, which is based on measuring the spectrum of a nonlinear signal as a function of varying amounts of known dispersion added to the pulse [1]. A reconstruction algorithm then enables extracting the amplitude and/or the spectral phase of the pulse from the measured two-dimensional (nonlinear spectrum vs. dispersion) trace. The first implementation of the technique used chirped mirrors and a pair of wedges that introduce varying amounts of dispersion depending on how much wedge is inserted or removed into the beam path in a scanning sequence. This implementation is very well suited for very short pulses (i.e., with broad bandwidths and high sensitivity to dispersion) being capable of measuring even single-cycle pulses [2-4]. On the other hand, longer pulses (i.e., with narrower spectra) present lower sensitivity to dispersion and the wedge setup is not enough to perform a complete d-scan, so a more complex (and expensive) calibrated dispersion scanning module is needed, e.g., a prism/grating/grism compressor or an acousto-optical programmable dispersive filter (AOPDF).

© 2017 IEEE

PDF Article
More Like This
Monolithic single-shot dispersion-scan: a new tool for real-time measurement and optimization of femtosecond pulses

Francisco Silva, Íñigo J. Sola, Helder Crespo, Rosa Romero, Miguel Miranda, Cord L. Arnold, Anne L’Huillier, Jose Trull, and Crina Cojocaru
CF_11_3 The European Conference on Lasers and Electro-Optics (CLEO_Europe) 2017

Ultrashort pulse characterisation with the d-scan technique: a single-shot implementation in the few- to single-cycle regime

D. Fabris, W. Holgado, F. Silva, T. Witting, J. W. G. Tisch, and H. Crespo
CF_5_3 The European Conference on Lasers and Electro-Optics (CLEO_Europe) 2015

Ultrashort Pulse Characterization from Dispersion Scans with a Grating Compressor

Miguel Miranda, Francisco Silva, Anne L’Huillier, and Cord L. Arnold
JTu5A.67 CLEO: Applications and Technology (CLEO_AT) 2016

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription