@misc{indiciae427f9d81d24b,
  title = {Efficient Single-Frequency Thulium Doped Fiber Laser Near 2-micrometers},
  author = {Geng, Jihong and Wu, Jianfeng and Jiang, Shibin and Yu, Jirong},
  year = {2007},
  url = {https://ntrs.nasa.gov/citations/20080006596},
  note = {Source identifier: 20080006596}
}