Accueil > RECHERCHE > Matériaux et optique > Equipe OML > Activités de recherche > Axis 2 : Novel fiber laser sources

Axis 2 : Novel fiber laser sources

Research within this theme concerns the development of new laser sources and optical measurement techniques. Our main objectives are to study the spatio-temporal and spectroscopic properties of novel fiber lasers in high power regime, to reach wavelength domains that are still little explored.
Over the past five years, our research has mainly focused on the study of Nd-doped fiber amplifiers and lasers for high power emission around 900 nm, in continuous or pulsed regime (ns, ps, fs), as well as on the non-linear frequency conversion in blue around 450 nm and in the deep-UV around 225 nm. In the frame of the ANR NEODUV and PICODUV projects, novel picosecond laser systems based on very large mode area Nd-doped PM fiber are currently being developped, with the objective of scaling the output power to several tens of watts.
In 2017, a new research activity was initiated on the development of Raman fiber lasers around 1650 nm as part of the Fast-Mir and NovaMat projects. The objective is to develop high-brightness laser sources between 1620 nm and 1700 nm, i.e. at wavelengths that are not covered by the usual emission bands of rare earth ions. These Raman laser sources allow resonant pumping of Thulium-doped materials in massive forms or in thin layers for an emission around 1.9 µm.

Main research activities of Axis 2 :

Projects :

  • PICODUV : « Neodymium-doped blue/UV picosecond pulsed fiber laser for material inspection and structuring »
    Région Normandie – Programme RIN Tremplin (2021-2024)
  • NEODUV : « Neodymium doped fiber lasers for blue / DUV high power emission »
    ANR PRCE (2020-2024)
  • NOVAMAT : « New Mid-IR laser sources based on fluoride matérials »
    Région Normandie – Programme RIN Tremplin (2019-2022)
  • DUNFILM : « Deep UV Nd doped Fibre Laser for Material processing »
    Labex EMC3 (2018-2019)
  • Fast-Mir : « High performance Thulium and Holmium doped crystals for mid-IR ultrafast lasers »
    Labex EMC3 (2015-2018)

Recent publications :

  1. K. Le Corre, T. Robin, A. Barnini, L. Kervella, P. Guitton, B. Cadier, G. Santarelli, H. Gilles, S. Girard, and M. Laroche, "Linearly-polarized pulsed Nd-doped fiber MOPA at 905 nm and frequency conversion to deep-UV at 226 nm," Opt. Express 29, 4240-4248 (2021)
    doi :
  2. R. Thouroude, A. Tyazhev, A. Hideur, P. Loiko, P. Camy, J.L. Doualan, H. Gilles, and M. Laroche, "Widely tunable in-band-pumped Tm:CaF2 laser," Opt. Lett. 45, 4511-4514 (2020)
    doi :

High-power Nd-doped fiber laser sources near 900 nm

The main objective is the power scaling of Nd-doped fiber lasers in continuous and pulsed regime. The major problem to achieve high laser efficiency on the 4F3/2-4I9/2 transition of Nd3+ is (...)

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Non-linear frequency conversion in the blue and deep-UV

The main objectives of this research theme are to generate CW and pulsed laser sources in the blue and deep-UV spectral domain. We demonstrated the first frequency-doubled neodymium-doped fiber (...)

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Raman fiber lasers around 1650 nm

A research topic on high-power fiber lasers was initiated in 2017 in the framework of the Fast-Mir project funded by the EMC3 labex. This new topic focuses on the study of Raman fiber lasers in (...)

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Resonant pumping near 1680 nm of Tm-doped materials

In the frame of the developpement of Raman fiber laser sources with diffraction-limited beam quality, a wavelength close to 1680 nm was used for the optical pumping of crystalline laser materials (...)

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Short-pulse Nd-doped fiber laser systems

This work was first conducted as part of SOLAIR project in collaboration with CORIA (Rouen). A passively mode-locked neodymium-doped oscillator operating at 930 nm was studied and developed (...)

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