S. Z. Zou

Publications (2)7.21 Total impact

• Article: High peak power green light generation using ytterbium fiber amplifier and lithium triborate crystal

  Z. Y. Dong, S. Z. Zou, H. J. Yu, Z. H. Han, Y. G. Liu, L. Sun, W. Hou, X. C. Lin, J. M. Li
  [show abstract] [hide abstract]
  ABSTRACT: We reported on a master-oscillator fiber power amplifier (MOPA) system and a second-harmonic generation (SHG) system. Actively Q-switched Nd:YVO4 laser was used as a seed source of light pluses. The MOPA system produced as much as 76 kW of peak power at wavelength of 1064 nm, with 35 kHz repetition rate and 20 ns pulse duration. With a lithium triborate (LBO) crystal at type II phase matching, a maximum 16 kW of peak power had been demonstrated. The fiber nonlinear effects such as stimulate Brillouin scattering (SBS) and stimulate Raman scattering (SRS) and the SHG conversion efficiency were investigated.
  Laser Physics 05/2012; 21(10):1804-1807. · 3.61 Impact Factor
• Article: High power, high energy nanosecond pulsed fiber amplifier with a 20-μm-core fiber

  Z. Y. Dong, S. Z. Zou, Z. H. Han, H. J. Yu, L. Sun, W. Hou, X. C. Lin, J. M. Li
  [show abstract] [hide abstract]
  ABSTRACT: We report on a master-oscillator fiber power amplifier (MOPA) system with a core diameter of only 20 μm and 6-m-long Yb3+-doped large mode area (LMA) double-clad fiber. Actively Q-switched Nd:YVO4 laser is used as a seed source of light pluses. The system works at the repetition rate from 40 to 100 kHz. Up to 77 W of amplified radiation with the pulse duration of 17.8 ns at the wavelength of 1064 nm and repetition rate of 40 kHz are generated, corresponding to pulse energy of 1.9 mJ and the slope efficiency of 73.5%. In reported literatures, the 77 W is the highest average power with a 20-μm-core LMA fiber to our knowledge. The stimulate Brillouin scattering (SBS) is observed and investigated.
  Laser Physics 04/2012; 21(3):536-539. · 3.61 Impact Factor