High performance pulsed HF chemical lasers

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

Research output: Contribution to journalConference article

Abstract

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
Volume1810
DOIs
Publication statusPublished - 1992 Jan 1
Event9th International Symposium on Gas Flow and Chemical Lasers 1992 - Heraklion, Greece
Duration: 1992 Sep 211992 Sep 25

Fingerprint

Chemical Laser
Chemical lasers
HF lasers
chemical lasers
Pulsed Laser
Pulsed lasers
High Performance
harmonics
Gas Mixture
Energy
Fluorides
Gas mixtures
Glass fibers
aeroservoelasticity
High Energy
Fiber
Oscillation
Wavelength
glass fibers
gas mixtures

ASJC Scopus subject areas

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

Cite this

High performance pulsed HF chemical lasers. / Sumiyoshi, Tetsumi; Ashidate, Shu Ichi; Kannari, Fumihiko; Obara, Minoru.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 1810, 01.01.1992, p. 240-247.

Research output: Contribution to journalConference article

Sumiyoshi, Tetsumi ; Ashidate, Shu Ichi ; Kannari, Fumihiko ; Obara, Minoru. / High performance pulsed HF chemical lasers. In: Proceedings of SPIE - The International Society for Optical Engineering. 1992 ; Vol. 1810. pp. 240-247.
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