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High power frequency comb delivered by a Tm-doped fiber laser
Author(s): Evgeny Shestaev; Christian Gaida; Tobias Heuermann; Martin Gebhardt; Thomas P. Butler; Daniel Gerz; Nikolai Lilienfein; Phillipp Sulzer; Marc Fischer; Ronald Holzwarth; Alfred Leitenstorfer; Ioachim Pupeza; Jens Limpert
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Paper Abstract

Frequency combs are an enabling technology for metrology and spectroscopic applications in fundamental and life sciences. While frequency combs in the 1 μm regime, produced from Yb-based systems have already exceeded the 100 W – level, high power coverage of the interesting mid-infrared wavelength range remains yet to be demonstrated. Tm- and Ho-doped laser systems have recently shown operation at high average power levels in the 2 μm wavelength regime. However, frequency combs in this wavelength range have not exceeded the 5 W-average power level. In this work, we present a high power frequency comb, delivered by a Tm-doped chirped-pulse amplifier with subsequent nonlinear pulse compression. With an integrated phase noise of <320 mrad, low relative intensity noise of <0.5% and an average power of 60 W at 100 MHz repetition rate (and <30 fs FWHM pulse duration), this system demonstrates high stability and broad spectral coverage at an unrivalled average power level in this wavelength regime. Therefore, this laser will enable metrology and spectroscopy with unprecedented sensitivity and acquisition time. It is our ongoing effort to extend the spectral coverage of this system through the utilization of parametric frequency conversion into the mid-IR, thus ultimately enabling high power fingerprint spectroscopy in the entire molecular fingerprint region (2 – 20 μm).

Paper Details

Date Published: 7 March 2019
PDF: 6 pages
Proc. SPIE 10897, Fiber Lasers XVI: Technology and Systems, 108970I (7 March 2019); doi: 10.1117/12.2510529
Show Author Affiliations
Evgeny Shestaev, Friedrich-Schiller-Univ. Jena (Germany)
Christian Gaida, Friedrich-Schiller-Univ. Jena (Germany)
Tobias Heuermann, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz Institute Jena (Germany)
Martin Gebhardt, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz Institute Jena (Germany)
Thomas P. Butler, Max-Planck-Institut für Quantenoptik (Germany)
Daniel Gerz, Ludwig-Maximilians-Univ. München (Germany)
Nikolai Lilienfein, Max-Planck-Institut für Quantenoptik (Germany)
Ludwig-Maximilians-Univ. München (Germany)
Phillipp Sulzer, Univ. Konstanz (Germany)
Marc Fischer, Menlo Systems GmbH (Germany)
Ronald Holzwarth, Max-Planck-Institut für Quantenoptik (Germany)
Menlo Systems GmbH (Germany)
Alfred Leitenstorfer, Univ. Konstanz (Germany)
Ioachim Pupeza, Max-Planck-Institut für Quantenoptik (Germany)
Jens Limpert, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz Institute Jena (Germany)
Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)

Published in SPIE Proceedings Vol. 10897:
Fiber Lasers XVI: Technology and Systems
Adrian L. Carter; Liang Dong, Editor(s)

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