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Proceedings Paper

Self-protecting nonlinear compression in a solid fiber for long-term stable ultrafast lasers at 2 µm wavelength
Author(s): Fabian Stutzki; Christian Gaida; Martin Gebhardt; Cesar Jauregui; Jens Limpert; Andreas Tünnermann; Ioachim Pupeza
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Paper Abstract

Ultrashort-pulse laser systems are an enabling technology for numerous applications. The stability of such systems is especially crucial for frequency metrology and high precision spectroscopy. Thulium-based fiber lasers are an ideal starting point as a reliable and yet powerful source for the nonlinear conversion towards the mid-IR region. Recently, we have demonstrated that nonlinear self-compression in a fused silica solid-core fiber allows for few-cycle pulse duration with up to 24 MW peak power using a high-repetition rate thulium-based fiber laser system operating at around 2 μm wavelength [1]. This experiment operates near the self-focusing limit of about 24 MW for circular polarization, which increases the requirements for the system stability due to the risk of a fiber damage. Here, we present a self-protecting nonlinear compression regime allowing for long-term operation and high output-pulse stability with very similar output performance.

Paper Details

Date Published: 22 February 2017
PDF: 4 pages
Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100830D (22 February 2017); doi: 10.1117/12.2252662
Show Author Affiliations
Fabian Stutzki, Friedrich-Schiller-Univ. Jena (Germany)
Christian Gaida, Friedrich-Schiller-Univ. Jena (Germany)
Martin Gebhardt, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz-Institute Jena (Germany)
Cesar Jauregui, Friedrich-Schiller-Univ. Jena (Germany)
Jens Limpert, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz-Institute Jena (Germany)
Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)
Andreas Tünnermann, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz-Institute Jena (Germany)
Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)
Ioachim Pupeza, Max-Planck-Institute of Quantum Optics (Germany)
Luwig Maximilians Univ. Müchen (Germany)


Published in SPIE Proceedings Vol. 10083:
Fiber Lasers XIV: Technology and Systems
Craig A. Robin; Ingmar Hartl, Editor(s)

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