Zhang, Z*; Sun, J*; Gardiner, T; Reid, D T* (2011) Broadband conversion in an Yb:KYW-pumped ultrafast optical parametric oscillator with a long nonlinear crystal. Opt. Express, 19 (18). pp. 17127-17132.

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Abstract

We report the generation of 200-nm-bandwidth mid-infrared pulses at 3.5 µm from an optical parametric oscillator incorporating a 25-mm MgO:PPLN crystal and synchronously-pumped by chirped pulses from a fiber-amplified Yb:KYW laser. A long nonlinear crystal permits efficient transfer of the pump bandwidth into the idler pulses, achieves exceptional passive stability and enables pumping using chirped pulses directly from a fiber-amplifier, avoiding the need to use lossy pulse-compression optics.

Item Type:	Article
Keywords:	mid-infrared, optical parametric oscillator, femtosecond laser
Subjects:	Environmental Measurement Environmental Measurement > Atmospheric Science, Emission and Security
Last Modified:	02 Feb 2018 13:14
URI:	http://eprintspublications.npl.co.uk/id/eprint/5218

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