High efficiency 1.53 μm all-fibre pulsed source based on a Q-switched erbium doped fibre ring laser

Inst. de Recherche en Commun. Opt. et Microondes, CNRS, Limoges
Electronics Letters (Impact Factor: 1.04). 08/1997; DOI: 10.1049/el:19970869
Source: IEEE Xplore

ABSTRACT A high peak power all-fibre pulsed source at 1.53 μm, based on
an amplified Q-switched fibre laser is presented. Peak powers higher
than 2 kW and pulsewidths of ~20ns at repetition rates up to 1 kHz are
demonstrated. Pumped with a single compact pump source (MOPA), this
device constitutes a very powerful field pulse generator

  • [Show abstract] [Hide abstract]
    ABSTRACT: We report on a all-fiber actively Q-switched laser based on a Mach-Zehnder interferometer (MZI). One of the arms of the MZI is bonded on a piezoelectric transducer (PZT). The path length difference between those two arms will change when a RF electric signal is applied drives the PZT, allowing control of the Q-factor of the cavity and, thus, performing active Q-switching. Using Er3+/Yb3+ co-doped fiber (EYDF) and a maximum pump power of 712 mW, Q-switch pulses with peak power of 2.2 W and pulse width of 1.2 μs were obtained. Furthermore, our result also shows that, to generate stable Q-switched-pulses, with different pump power, one must select different modulation frequency, this phenomenon is experimentally proved for the first time to our knowledge. The pulse repetition rate of the laser can be adjusted from few Hz up to 25 kHz. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2183–2186, 2007; Published online in Wiley InterScience ( DOI 10.1002/mop.22692
    Microwave and Optical Technology Letters 06/2007; 49(9):2183 - 2186. · 0.59 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: We propose a simple design of a saturable absorber Q-switched all-fiber ring laser. By locating a saturable absorber fiber in the intensity-enhanced section of a ring resonator, the laser is passively Q-switched. A set of location-dependent rate equations is established for Q-switching modeling. The design has been numerically and experimentally demonstrated using Er(3+)-doped fiber at the emission wavelength of 1550 nm. A single-mode Q-switched pulse with pulse energy of 0.37 microJ and pulse duration of 218 ns was achieved with 980-nm pump power near 7 mW.
    Optics Express 03/2009; 17(3):1429-34. · 3.55 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: A novel scheme of an all-solid-state low-threshold passively Q-switched erbium fiber laser with a Co 2 :ZnSe saturable absorber is demonstrated experimentally and simulated numerically.
    Journal of the Optical Society of America B 01/2002; 19(3). · 2.21 Impact Factor