Four-pass amplifier for the pulsed amplification of a narrow-bandwidth continuous-wave dye laser

Eun Seong Lee, Jae Won Hahn

Research output: Contribution to journalArticle

9 Citations (Scopus)


We demonstrate a new type of four-pass dye laser amplifier that can reduce the possibility of parasitic oscillation between optical components used in the amplifier. Pumping the amplifier with a 5.6-mJ Q-switched doubled Nd-YAG laser output, we obtain high-peak-power pulsed output of an incident cw narrow-bandwidth dye laser beam with a power gain greater than 2 × 106. Subsequent amplification of the pulse with a conventional dye amplifier yields 42% energy efficiency. When a temporally stretched pumping pulse is used, the eventual bandwidth of the final output is measured to be 130 MHz.

Original languageEnglish
Pages (from-to)1836-1838
Number of pages3
JournalOptics Letters
Issue number22
Publication statusPublished - 1996 Nov 15


All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this