Berlin 2014 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 23: Laser development and applications IV
Q 23.3: Vortrag
Dienstag, 18. März 2014, 14:30–14:45, DO26 207
Coherent Thulium/Holmium based all-PM fiber frequency comb source at 2.05 μm supporting both narrowband and broadband pulses at 100 MHz with up to 0.5 W average power and pulse duration down to 135 fs — •Heinar Hoogland1, Alexandre Thai1,2, Daniel Sánchez2, Seth Lucien Cousin2, Michaël Hemmer2, Martin Engelbrecht1, Jens Biegert2,4, and Ronald Holzwarth1,3 — 1Menlo Systems GmbH, Am Klopferspitz 19a, 82152 Martinsried, Germany — 2ICFO-Institut de Ciences Fotoniques, Castelldefels, Barcelona 08860, Spain — 3Max-Planck-Institute of Quantum Optics, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany — 4ICREA - Institucio Catalana de Recerca i Estudis Avançats, 08010 Barcelona, Spain
Numerous applications in the spectral region around 2 μm are rapidly evolving, especially in the fields of spectroscopy and medicine as well as security and defense in the eye-safe laser regime.
We report on an all-PM fiber laser system at 2.05 μm offering coherent broadband and narrowband pulses at 100 MHz repetition rate with a FHWM bandwidth of around 60 nm and 1.5 nm, respectively, and average output powers of up to 0.5 W. The broadband pulses are temporally dechirped to 135 fs by use of a Martinez-style compressor. The multi-stage amplifier based on Thulium/Holmium codoped gainfibers is seeded by a supercontinuum light source spanning from around 1 μm up to 2.4 μm. Relative intensity noise and temperature dependence of the system have been investigated.