Highly efficient, ultra-broadband mid infrared generation driven by a Tm-doped fiber laser system

Tobias Heuermann; Ziyao Wang; Mathias Lenski; Jens Limpert

doi:10.1117/12.3005406

12 March 2024 Highly efficient, ultra-broadband mid infrared generation driven by a Tm-doped fiber laser system

Tobias Heuermann, Ziyao Wang, Mathias Lenski, Jens Limpert

Proceedings Volume 12865, Fiber Lasers XXI: Technology and Systems; 128650W (2024) https://doi.org/10.1117/12.3005406
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

We present on the nonlinear downconversion of a post-compressed Tm-doped fiber laser system via intrapulse difference frequency generation. In a preliminary experiment, with sampled 15 fs driving pulses and a 3 mm Gallium Selenide crystal, we achieved an octave spanning spectrum (5-16 μm) with a conversion efficiency of 3.6%. Utilizing the full 100 W driving laser power, we believe that this approach can pave the way towards W-class emission in the molecular fingerprint region enabling unprecedented sensitivity and precision in future spectroscopic applications.

Citation Download Citation

Tobias Heuermann, Ziyao Wang, Mathias Lenski, and Jens Limpert "Highly efficient, ultra-broadband mid infrared generation driven by a Tm-doped fiber laser system", Proc. SPIE 12865, Fiber Lasers XXI: Technology and Systems, 128650W (12 March 2024); https://doi.org/10.1117/12.3005406

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