Sub-150 fs all-fiber polarization maintaining tunable laser in the mid-infrared

P. Morin; S. Boivinet; J.-P. Yehouessi; T. Berberian; F. Druon; S. Vidal; G. Machinet; F. Guichard; Y. Zaouter; J. Boullet

doi:10.1117/12.2543740

21 February 2020 Sub-150 fs all-fiber polarization maintaining tunable laser in the mid-infrared

P. Morin, S. Boivinet, J.-P. Yehouessi, T. Berberian, F. Druon, S. Vidal, G. Machinet, F. Guichard, Y. Zaouter, J. Boullet

Author Affiliations +

Proceedings Volume 11260, Fiber Lasers XVII: Technology and Systems; 112601M (2020) https://doi.org/10.1117/12.2543740
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

Nowadays, the request for femtosecond lasers operating between 1.7 μm and 2 μm is continuously growing for many applications. Mode-locked Holmium- or Thulium-doped fiber lasers based on Saturable Absorber Mirror (SAM) are typically the first approach to generate pulses in this spectral range but this technique suffers from a lack of tunability. Indeed, the operating wavelength is fixed by the SAM and the gain fiber. Another way to reach the 2 μm-spectral range consists to exploit the nonlinear phenomena appearing in optical fibers and in particular the Soliton-Self Frequency Shift (SSFS) effect from an Erbium-fiber laser. Several systems based on this phenomenon allowed the generation of ultrashort pulses at different wavelengths and in different type of fibers (step-index, PCF, …). In this paper, we report on the design of a compact and robust all-Polarization-Maintaining (PM) fiber system entirely based on commercial PM components. This system allows to generate a single femtosecond pulse continuously tunable from 1700 nm to 2050 nm. We also demonstrate that the sub-150 fs pulses are transform-limited over all the spectral range and thanks to an optimized rate conversion close to 50 %, the pulse energy and the peak power can reach the nJclass and the kW-class respectively, which represents a gain of a factor 2 compared to the previous works.

Conference Presentation

Citation Download Citation

P. Morin, S. Boivinet, J.-P. Yehouessi, T. Berberian, F. Druon, S. Vidal, G. Machinet, F. Guichard, Y. Zaouter, and J. Boullet "Sub-150 fs all-fiber polarization maintaining tunable laser in the mid-infrared", Proc. SPIE 11260, Fiber Lasers XVII: Technology and Systems, 112601M (21 February 2020); https://doi.org/10.1117/12.2543740

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