Abstract

We describe a second-harmonic-generation frequency-resolved optical gating measurement device optimized for the characterization of few-cycle pulses in the mid-IR spectral range. The system has a temporal range of $100\mathrm{ps}$ with resolution of $0.12\mathrm{fs}$, and it is capable of measuring pulses as short as $1.5\text{\hspace{0.17em} cycles}\left(15\text{\hspace{0.17em} fs}\right)$ at $3\mu \mathrm{m}$. Through interchangeable beam splitters and detectors it covers a wavelength range from $800\mathrm{nm}\text{to}5\mu \mathrm{m}$ with up to $0.5{\mathrm{cm}}^{-1}$ resolution. We demonstrate measurement of a richly featured $3.2\mu \mathrm{m}$ pulse with $9.6\text{\hspace{0.17em} cycle}$ duration, recovering the main pulse of $96\mathrm{fs}$, as well as low-intensity post-pulses with picosecond offset. We also characterize a $100\mathrm{fs}$ pulse after dispersion through a $1\mathrm{cm}$ sapphire plate, comparing the measured phase difference with the calculated one.

© 2010 Optical Society of America

High-sensitivity ultrashort mid-infrared pulse characterization by modified interferometric field autocorrelation

Ming-Sung Chao, Hsiang-Nan Cheng, Bo-Jyun Fong, Zhi-Ming Hsieh, Wei-Wei Hsiang, and Shang-Da Yang
Opt. Lett. 40(6) 902-905 (2015)

Generation and complete characterization of intense mid-infrared ultrashort pulses

Cathie Ventalon, James M. Fraser, Jean-Pierre Likforman, D. M. Villeneuve, P. B. Corkum, and Manuel Joffre
J. Opt. Soc. Am. B 23(2) 332-340 (2006)

Two-optical-cycle pulses in the mid-infrared from an optical parametric amplifier

D. Brida, M. Marangoni, C. Manzoni, S. De Silvestri, and G. Cerullo
Opt. Lett. 33(24) 2901-2903 (2008)

Self-referenced spectral interferometry for ultrashort infrared pulse characterization

A. Trisorio, S. Grabielle, M. Divall, N. Forget, and C. P. Hauri
Opt. Lett. 37(14) 2892-2894 (2012)

Characterization of mid-infrared femtosecond pulses [Invited]

Kevin F. Lee, Kevin J. Kubarych, Adeline Bonvalet, and Manuel Joffre
J. Opt. Soc. Am. B 25(6) A54-A62 (2008)