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High average power and single-cycle pulses from a mid-IR optical parametric chirped pulse amplifier

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Tani,  Francesco
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Frosz,  Michael H.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;
Fibre Fabrication and Glass Studio, Technology Development and Service Units, Max Planck Institute for the Science of Light, Max Planck Society;

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Koettig,  Felix
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Ermolov,  Alexey
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Russell,  Philip St J.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Elu, U., Baudisch, M., Pires, H., Tani, F., Frosz, M. H., Koettig, F., et al. (2017). High average power and single-cycle pulses from a mid-IR optical parametric chirped pulse amplifier. OPTICA, 4(9), 1024-1029. doi:10.1364/OPTICA.4.001024.


Cite as: https://hdl.handle.net/21.11116/0000-0000-8340-3
Abstract
In attosecond and strong-field physics, the acquisition of data in an acceptable time demands the combination of high peak power with high average power. We report a 21 W mid-IR optical parametric chirped pulse amplifier (OPCPA) that generates 131 mu J and 97 fs (sub-9-cycle) pulses at a 160 kHz repetition rate and at a center wavelength of 3.25 mu m. Pulse-to-pulse stability of the carrier envelope phase (CEP)-stable output is excellent with a 0.33% rms over 288 million pulses (30 min) and compression close to a single optical cycle was achieved through soliton self-compression inside a gas-filled mid-IR antiresonant-guiding photonic crystal fiber. Without any additional compression device, stable generation of 14.5 fs (1.35-optical-cycle) pulses was achieved at an average power of 9.6 W. The resulting peak power of 3.9 GW in combination with the near-single-cycle duration and intrinsic CEP stability makes our OPCPA a key-enabling technology for the next generation of extreme photonics, strong-field attosecond research, and coherent x-ray science. (C) 2017 Optical Society of America