Large Pitch Photonic Quasi-Crystal Fiber Amplifier

  title={Large Pitch Photonic Quasi-Crystal Fiber Amplifier},
  author={S. Sivabalan and J. P. Raina},
  journal={IEEE Photonics Journal},
We design an ytterbium-doped large pitch photonic quasi-crystal fiber (PQF) for amplifying high-energy ultrashort laser pulses. The proposed fiber exhibits unique properties such as very large mode area (4660 μm2), less attenuation (0.42 dB/km), high overlapping factor (0.55 for the fundamental mode), and low bending loss. These properties help amplify with high-average power ultrashort pulses with less distortion and high efficiency. To meet these requirements, we design a fiber with optimum… CONTINUE READING