• DOI:10.1364/OL.35.003210
• Corpus ID: 13457999

Efficient, high-power, ytterbium-fiber-laser-pumped picosecond optical parametric oscillator.

@article{Kokabee2010EfficientHY,
  title={Efficient, high-power, ytterbium-fiber-laser-pumped picosecond optical parametric oscillator.},
  author={Omid Kokabee and Adolfo Esteban-Mart{\'i}n and Majid Ebrahim-Zadeh},
  journal={Optics letters},
  year={2010},
  volume={35 19},
  pages={
          3210-2
        }
}

• O. Kokabee, A. Esteban-Martín, M. Ebrahim-Zadeh
• Published 1 October 2010
• Physics
• Optics letters

We report a high-power picosecond optical parametric oscillator (OPO) synchronously pumped by a Yb fiber laser at 1.064 μm, providing 11.7 W of total average power in the near to mid-IR at 73% extraction efficiency. The OPO, based on a 50 mm MgO:PPLN crystal, is pumped by 20.8 ps pulses at 81.1 MHz and can simultaneously deliver 7.1 W of signal at 1.56 μm and 4.6 W of idler at 3.33 μm for 16 W of pump power. The oscillator has a threshold of 740 mW, with maximum signal power of 7.4 W at 1.47 μm and idler power of 4.9 W at 3.08 μm at slope efficiencies of 51% and 31%, respectively. Wavelength coverage across 1.43-1.63 μm (signal) and 4.16-3.06 μm (idler) is obtained, with a total power of ~11 W and an extraction efficiency of ~68%, with pump depletion of ~78% maintained over most of the tuning range. The signal and idler output have a single-mode spatial profile and a peak-to-peak power stability of ±1.8% and ±2.9% over 1 h at the highest power, respectively. A signal pulse duration of 17.3 ps with a clean single-peak spectrum results in a time-bandwidth product of ~1.72, more than four times below the input pump pulses.