@article{improvingperformanceofhigherorder,
  title = {Improving Performance of Higher-Order Codirectional Raman Amplifiers Using Phase-Modulated Signals -- Functional Principle},
  author = {Lutz Rapp},
  year = {2022},
  eprint = {2211.01257},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2211.01257v1},
}