Cr4+: YAG as Passive Q-Switch and Brewster Plate in a Pulsed Nd: YAG Laser

Y. Shimony, Z. Burshtein, Y. Kalisky

Research output: Contribution to journalArticlepeer-review

189 Scopus citations


We demonstrate the performance of a Nd: YAG laser, passively Q-switched with a Cr 4+ : YAG plate, which plays the double role of a passive Q-switch and a Brewster plate. The Brewster plate configuration contributes an intracavity loss of approximately 3.2 × 10-3 cm-1 along the cavity length. Losses contributed by the active Cr4+ ions in the plate relate to their excited state absorption. A freshly measured transmission saturation curve of Cr4+ : YAG suggests a ground state absorption cross section σgs = (8.7 ± 0.8) × 10-19 cm2, and an excited state absorption cross section σes = (2.2 ± 0.2) × 10-19 cm2 of the Cr4+ ions at λ = 1064 nm.

Original languageEnglish
Pages (from-to)1738-1741
Number of pages4
JournalIEEE Journal of Quantum Electronics
Issue number10
StatePublished - 1 Jan 1995
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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