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Performance of a liquid-nitrogen-cooled CW Tm, Ho:YLF laser

  • Yuezhu Wang
  • , Xinlu Zhang*
  • , Baoquan Yao
  • , Liqiang Dong
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

A liquid-nitrogen-cooled Tm, Ho:YLF laser is constructed with a 10-mm-long Tm(6%) and Ho(0.5%) co-doped yttrium lithium fluoride crystal pumped by a laser diode operating at 792 nm. The laser output power is improved by cooling the Tm, Ho:YLF crystal from 300 to 77 K. When the crystal is kept at 77 K, the laser threshold pump power is 230 mW, the slope efficiency is 27.4%, and the maximum optical-to-optical efficiency is 19.9%. At the same time, the relation between the input power and the output power at different temperatures is obtained.

Original languageEnglish
Pages (from-to)281-282
Number of pages2
JournalChinese Optics Letters
Volume1
Issue number5
StatePublished - May 2003

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