Cr4+ doped garnets: Novel laser materials and non-linear saturable absorbers

Y. Kalisky, A. Ben-Amar Baranga, Y. Shimony, M. R. Kokta

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


The use and the spectral properties of Cr4+-doped garnets as passive Q-switches for 1.06 μm laser for both pulsed and CW operating modes is addressed. A comparative research into the use of Cr4+-doped YAG, YSGG and LuAG (Lu3Al5O12) as saturable absorbers for the 1.06 μm emission of Nd:YAG laser has been conducted. Q-switched pulses with temporal duration ranging from 52 to 23 ns (FWHM) were observed for the different garnets under investigation. Cross-sections for ground state and excited state absorptions were evaluated by fitting our saturation data to Frantz-Nodvik equation. A complete analysis of the saturation transmission curves will be presented. The laser performance of Cr4+:YAG and Cr4+:LuAG (Lu3Al5O12) lasing in the mid-IR (1.35-1.55 μm) pumped by the 1064 nm of Nd:YAG will also be reported.

Original languageEnglish
Pages (from-to)129-134
Number of pages6
JournalOptical Materials
Issue number1-2
StatePublished - 1 Jan 1997
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Computer Science
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering


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