Electronically delay-tuned upconversion cross-correlator for characterization of mid-infrared pulses

Laurent Huot*, Peter Morten Moselund, Peter Tidemand-Lichtenberg, Christian Pedersen

*Corresponding author for this work

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Abstract

In this Letter, a novel method for the characterization of mid-infrared pulses is presented. A cross-correlator system, with no moving parts, combining ultra-broadband pulsed upconversion detection with fast active electronic delay tuning was built to perform time-resolved spectral characterization of 1.6 ns mid-infrared supercontinuum pulses. Full wavelength/time spectrograms were acquired in steps of 20 ps over a range that can, in theory, extend to microseconds in a matter of seconds, with 48 ps temporal resolution and 22 cm(-1) spectral resolution in the 2700-4300 nm range. This work proves the potential for the use of electronic delay tuning instead of mechanical delay tuning for applications such as cross-correlators and laser spectroscopy, where their fast precise tunability and long delay ranges are a strong asset. (C) 2018 Optical Society of America
Original languageEnglish
JournalOptics Letters
Volume43
Issue number12
Pages (from-to)2881-2884
ISSN0146-9592
DOIs
Publication statusPublished - 2018

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