Enhanced Raman Amplification in Hybrid Photonic Crystal Based Waveguide Structure by Using Optofluidic Materials

Abstract

In  this  paper,  we  propose  a  hybrid  photonic  crystal  Raman  amplifier  structure  which  in  this  structure  using
engineered nanoholes filled with optofluidic material in the signal and pump paths, we reduce pump and signal
group velocity to improve the structure and achieve larger Raman gain and bandwidth. Geometrical parameters
are changed to obtain enhanced Raman amplification with a greater gain and broader bandwidth. The Maxwell
equations are solved using finite difference time domain method considering two photon absorption, free carrier
absorption, kerr effect and self phase modulation (SPM) effects. Finally, by injecting 3 pumps with appropriate
wavelength and power into the Raman amplifier structure with amplification length of 350 µm, we increased the
Raman gain to 10.06 dB and Raman bandwidth to 5.72 nm.

Keywords

References

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History

  • Receive Date: 14 August 2017
  • Revise Date: 25 February 2019
  • Accept Date: 19 September 2018

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