A 2 ?m, gain-switched Tm-doped fiber laser and amplifier system with output average power of 9 W at 50 kHz

Jacek Swiderski, Maria Michalska, Wieslaw Pichola, Jacek Kwiatkowski, Lukasz Galecki


We demonstrate a gain-switched thulium-doped fiber laser and amplifier system (TDFL&A) operating at a wavelength of 1994.7 nm. A pulsed fiber Master Oscillator Power Amplifier (MOPA) at 1.55 ?m was used to gain-switch the Tm fiber laser via in-band pumping. In the next step, the gain-switched pulses were amplified in a cladding-pumped Tm-doped fiber amplifier pumped by up to 30 W at 793 nm. For the pulse repetition frequency (PRF) of 100 kHz, the laser system delivered the maximum average output power as high as 9.03 W with a slope efficiency of 36.4%. For the PRF of 50 kHz, stable 25-ns pulses with energy of 0.18 mJ corresponding to a peak-power of 6.8 kW were achieved. The performance of the laser system is described.

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  1. N. J. Scott, C. M. Cilip, N. M. Fried, "Thulium Fiber Laser Ablation of Urinary Stones Through Small-Core Optical Fibers", IEEE J. Sel. Top. Quantum Electron. 15, 435 (2009). CrossRef
  2. M. Baudelet, C. C. C. Willis, L. Shah, M. Richardson, "Laser-induced breakdown spectroscopy of copper with a 2 ?m thulium fiber laser", Opt. Express 18, 7905 (2010). CrossRef
  3. G. J. Koch, J. Y Beyon, B. W. Barnes, M. Petros, J. Yu, F. Amzajerdian, M. J. Kavaya, U. N. Singh, "Novel nonlinear adaptive Doppler-shift estimation technique for the coherent Doppler validation lidar", Opt. Eng. 46, 116201 (2007). CrossRef
  4. P. Sprangle, A. Ting, J. Penano, R. Fischer, B. Hafizi, "Incoherent Combining and Atmospheric Propagation of High-Power Fiber Lasers for Directed-Energy Applications", IEEE J. Quantum Electron. 45, 138 (2009). CrossRef
  5. D. Creeden et al., "Mid-infrared ZnGeP2 parametric oscillator directly pumped by a pulsed 2??m Tm-doped fiber laser", Opt. Lett. 33, 315 (2008). CrossRef
  6. J. Swiderski, M. Michalska, "Mid-infrared supercontinuum generation in a single-mode thulium-doped fiber amplifier", Laser Phys. Lett. 10, 035105 (2013). CrossRef
  7. A. S. Kurkov et al., "Supercontinuum generation in thulium-doped fibres", Quantum Electron. 42, 778 (2012). CrossRef
  8. T. Ehrenreich, R. Leveille, I. Majid, K. Tankala, "1-kW, all-glass Tm:Fiber laser," in Proc. Fiber Laser VII: Technol. Syst. Applicat., 1-15 (2010).
  9. M. Eckerle, C. Kieleck, J. Swiderski, S. D. Jackson, G. Maze, M. Eichhorn, "Actively Q-switched and mode-locked Tm3+-doped silicate 2?m fiber laser for supercontinuum generation in fluoride fiber" Opt. Lett. 37, 512-514 (2012). CrossRef
  10. F. Stutzki, F. Jansen, C. Jauregui, J. Limpert, A. Tunnermann, "2.4 mJ, 33 W Q-switched Tm-doped fiber laser with near diffraction-limited beam quality", Opt. Lett. 38, 97 (2013). CrossRef
  11. G. Sobon, J. Sotor, I. Pasternak, A. Krajewska, W. Strupinski, K. M. Abramski, "Thulium-doped all-fiber laser mode-locked by CVD-graphene/PMMA saturable absorber", Opt. Express 21, 12797 (2013). CrossRef
  12. N. Simakov, A. Hemming, S. Bennetts, J. Haub, "Efficient, polarised, gain-switched operation of a Tm-doped fibre laser", Opt. Express 19, 14949 (2011). CrossRef
  13. M. Eichhorn, "Development of a high-pulse-energy Q-switched Tm-doped double-clad fluoride fiber laser and its application to the pumping of mid-IR lasers", Opt. Lett. 32, 1056 (2007). CrossRef
  14. A. F. El-Sherif, T. King, "High-peak-power operation of a Q-switched Tm3+-doped silica fiber laser operating near 2 ?m", Opt. Lett. 28, 22 (2003). CrossRef
  15. J. Swiderski, A. Zajac, P. Konieczny, M. Skorczakowski, "Numerical model of a Q-switched double-clad fiber laser", Opt. Express 12, 3554 (2004). CrossRef
  16. Y. Tang, F. Li, J. Xu, "High Peak-Power Gain-Switched Tm ^{3+} -Doped Fiber Laser", IEEE Phot. Tech. Lett. 23, 893 (2011). CrossRef
  17. M. Jiang, P. Tayebati, "Stable 10ns , kilowatt peak-power pulse generation from a gain-switched Tm-doped fiber laser", Opt. Lett. 32, 1797 (2007). CrossRef
  18. J. Swiderski, M. Maciejewska, J. Kwiatkowski, M. Mamajek, "An all-fiber, resonantly pumped, gain-switched, 2 ?m Tm-doped silica fiber laser", Laser Phys. Lett. 10, 015107 (2013). CrossRef
  19. Y. Tang, L. Xu, Y. Yang, J. Xu, "High-power gain-switched Tm3+-doped fiber laser", Opt. Express 18, 22964 (2010). CrossRef

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Photonics Letters of Poland - A Publication of the Photonics Society of Poland
Published in cooperation with SPIE

ISSN: 2080-2242