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Investigation of thermal effects in longitudinally diode-pumped Tm,Ho:YLF lasers

  • Xinlu Zhang*
  • , Li Li
  • , Jinhui Cui
  • , Peng Chen
  • *Corresponding author for this work
  • Harbin Engineering University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Under considering energy transfer up-conversion (ETU) and ground state re-absorption (GSA), the rate equations of the Tm,Ho:YLF laser are given. The influence of ETU on fractional thermal loading is calculated for the continuous wave and Q-switched Tm,Ho:YLF lasers and the results show that the fractional thermal loading critically depends on the pump-to-mode size ratio. Furthermore, the fractional thermal loading depends on the pulse repetition frequency for a Q-switched laser. The temperature distributions of a Tm,Ho:YLF crystal under different pump powers have been analyzed. The thermal focal length as a function of pump power is calculated.

Original languageEnglish
Title of host publicationPassive Components and Fiber-based Devices IV
DOIs
StatePublished - 2007
Externally publishedYes
EventPassive Components and Fiber-based Devices IV - Wuhan, China
Duration: 2 Nov 20075 Nov 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6781
ISSN (Print)0277-786X

Conference

ConferencePassive Components and Fiber-based Devices IV
Country/TerritoryChina
CityWuhan
Period2/11/075/11/07

Keywords

  • Energy transfer up-conversion
  • Fractional thermal loading
  • Ho:YLF crystal
  • Rate equation
  • Tm

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