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Yb3+-doped YVO4 crystal for efficient Kerr-lens mode locking in solid-state lasers

  • A A Lagatsky
  • , A R Sarmani
  • , C T A Brown
  • , W Sibbett
  • , V E Kisel
  • , A G Selivanov
  • , I A Denisov
  • , A E Troshin
  • , K V Yumashev
  • , N V Kuleshov
  • , V N Matrosov
  • , T A Matrosova
  • , M I Kupchenko

Research output: Contribution to journalArticlepeer-review

Abstract

We report the first demonstration, to our knowledge, of soft-aperture Kerr-lens mode locking in a diode-pumped femtosecond Yb3+ :YVO4 laser. Near-transform-limited pulses as short as 61 fs are generated around a center wavelength of 1050 nm with an output power of 54 mW and a pulse repetition frequency of 104.5 MHz. This is, to our knowledge, the shortest pulse generated directly from an Yb laser having a crystalline host material. The femtosecond operation has a mode-locking threshold at an absorbed pump power of 190 mW. The nonlinear refractive indexes of the Yb3+:YVO4 crystal have been measured to be 19 X 10(-16) cm(2)/W and 15 x 10(-16) cm(2)/W for the (T and pi polarizations, respectively, at 1080 nm. (c) 2005 Optical Society of America.

Original languageEnglish
Pages (from-to)3234-3236
Number of pages3
JournalOptics Letters
Volume30
Publication statusPublished - 1 Dec 2005

Keywords

  • Z-SCAN MEASUREMENTS
  • TI-SAPPHIRE LASER
  • PULSE GENERATION
  • HIGHLY-EFFICIENT
  • FEMTOSECOND
  • YB3+-YVO4
  • OPERATION

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