@misc{indiciae2d03a43e91cd,
  title = {Single-frequency thulium-doped distributed-feedback fiber laser.},
  author = {Søren Agger and Jørn Hedegaard Povlsen and Poul Varming},
  year = {2004},
  doi = {10.1364/ol.29.001503},
  url = {https://pubmed.ncbi.nlm.nih.gov/15259727/},
  note = {Source identifier: 15259727}
}