Suppression of amplified spontaneous emission from a four-pass dye laser amplifier

Jae Won Hahn, Yong Shim Yoo

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


We demonstrate a new design for a four-pass dye laser amplifier that can be used to reduce amplified spontaneous emission (ASE) in the amplifier output beam. Compared with the results obtained from normal operation of the four-pass dye laser amplifier without a frequency-selective device, by using a diffraction grating in the amplifier we can reduce the ASE ratio by a factor in excess of 10 and increase output energy by ∼4%. The obtained ASE ratio of the four-pass amplifier system is <1.5%.

Original languageEnglish
Pages (from-to)4867-4870
Number of pages4
JournalApplied Optics
Issue number21
Publication statusPublished - 1998 Jul 20

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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