Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • CLEO/Europe and IQEC 2007 Conference Digest
  • (Optica Publishing Group, 2007),
  • paper CP1_1

Few-optical-cycle pulses in the near-IR from a non-collinear optical parametric amplifier

Not Accessible

Your library or personal account may give you access

Abstract

Femtosecond Optical Parametric Amplifiers (OPAs) pumped by the fundamental frequency (FF) or the second harmonic (SH) of Ti:sapphire not only provide broad frequency tunability but also enable to dramatically shorten the pulsewidths because of their broad gain bandwidths [1]. The phase-matching bandwidth in an OPA becomes large when the group velocities of signal and idler are matched; this can be obtained in the Non-collinear OPA (NOPA) by making the signal group velocity equal to the projection of the group velocity of the idler along the signal direction. The well- known SH-pumped visible NOPA based on β-barium borate (BBO) [2] generates pulses down to 4 fs and is a workhorse of time-resolved spectroscopy. However in the near-IR, for both SH and FF pumps, the group velocity of the idler in BBO is smaller than that of the signal; therefore the NOPA concept does not work with BBO. In this paper we show that for periodically poled stoichiometric lithium tantalate (PPSLT) and several other crystals (LiIO3, KNbO3, LiNbO3) the group velocity of the idler in a FF-pumped OPA is higher than that of the signal, allowing for ultrabroadband non-collinear amplification in the near-IR. We present a near-IR NOPA based on PPSLT pumped at 785 nm by an amplified Ti:sapphire laser. The NOPA generates ultrabroad spectra spanning from 1.1 to 1.7 μm; preliminary pulse compression experiments on a limited spectral portion produced nearly transform-limited 16-fs pulses.

© 2007 IEEE

PDF Article
More Like This
Few-optical-cycle pulses in the near- and mid-infrared by optical parametric amplifiers

D. Brida, C. Manzoni, G. Cirmi, M. Marangoni, S. Bonora, P. Villoresi, G. Cerullo, and S. De Silvestri
CF9_1 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2009

Tunable few-optical-cycle visible pulses with passive carrier-envelope phase stabilization from an optical parametric amplifier

C. Manzoni, D. Polli, G. Cirmi, D. Brida, S. De Silvestri, and G. Cerullo
CF5_3 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2007

Carrier-Envelope-Phase Stable Few-Optical-Cycle Pulses from Optical Parametric Amplifiers

D. Brida, C. Manzoni, D. Polli, and G. Cerullo
AMD1 Advanced Solid-State Photonics (ASSL) 2011

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved