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Formation mechanism of optical bistability in end-pumped quasi-three-level Tm, Ho:YLF lasers

  • Xinlu Zhang*
  • , Li Li
  • , Yang Zheng
  • , Yuezhu Wang
  • *Corresponding author for this work
  • Harbin Engineering University
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

We report on optical bistability and its formation mechanism in an end-pumped quasi-three-level 2 μm Tm,Ho:YLF laser with only a bulk laser crystal. We have experimentally observed that the characteristic output versus input curve is not linear and shows bistability when the laser crystal is singly end pumped by a 792 nm laser diode. The width of the bistable region is 1.6 W and the jump power at the turning point is 82.5 mW. However, the laser shows linear output when the laser crystal is dual end pumped. The formation mechanism of optical bistability is explained by solving coupled rate equations in which energy transfer up-conversion and ground-state reabsorption are considered.

Original languageEnglish
Pages (from-to)2434-2439
Number of pages6
JournalJournal of the Optical Society of America B: Optical Physics
Volume26
Issue number12
DOIs
StatePublished - 1 Dec 2009
Externally publishedYes

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