@conference{778831,
  author = {William Swann and Nathan Newbury},
  title = {Narrow linewidth 1.5 υm sources and the thermal limit},
  year = {2007},
  month = {2007-07-23 00:07:00},
  publisher = {Proc. Dig., LEOS Summer Topical on Optical Frequency & Time Measurement and Generation, Portland, OR, US},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32642},
  language = {en},
}