High performance pulsed HF chemical lasers

Tetsumi Sumiyoshi, Shu Ichi Ashidate, Fumihiko Kannari, Minoru Obara

Research output: Contribution to journalConference articlepeer-review


We demonstrated a high energy delivery of a pulsed wavelength-selected HF chemical laser by fluoride glass fibers (core/cladding=450/500 μm). The optical energy of 19 mJ in a 540 ns pulse was successfully delivered with a peak intensity of 22 MW/cm2 at the exit core surface. We have also theoretically investigated the operational characteristics of the pulsed chain first vibrational overtone HF chemical laser using a computer code. The model used can describe simultaneously both the fundamental and overtone oscillations. The higher overtone output energy of 2.73 J/1 can be obtained with a gas mixture consisting of F2/H2/He=10/4/786 (Torr) by successfully suppressing the ASE.

Original languageEnglish
Pages (from-to)240-247
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1992
Externally publishedYes
Event9th International Symposium on Gas Flow and Chemical Lasers 1992 - Heraklion, Greece
Duration: 1992 Sept 211992 Sept 25

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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