Optical Orbital Angular Momentum Amplifier Based on an Air-Hole Erbium-Doped Fiber

@article{Jung2017OpticalOA,
  title={Optical Orbital Angular Momentum Amplifier Based on an Air-Hole Erbium-Doped Fiber},
  author={Yongmin Jung and Qiongyue Kang and Raghuraman Sidharthan and Daryl Ho and Seongwoo Yoo and P. E. H. Gregg and Siddharth Ramachandran and S. M. Nazmul Alam and David John Richardson},
  journal={Journal of Lightwave Technology},
  year={2017},
  volume={35},
  pages={430-436}
}
We present for the first time broadband operation of an optical orbital angular momentum (OAM) erbium-doped fiber amplifier for lower order OAM modes based on an air-hole erbium-doped fiber designed and fabricated to provide significant mode splitting between the OAM │<italic>l</italic>│ = 1 modes and the adjacent vector modes. Up to 15.7 dB gain is obtained using a cladding pumped amplifier configuration for OAM modes with topological charge │<italic>l</italic>│ = 1 in the operational… CONTINUE READING