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Proceedings Paper

High-performance pulsed HF chemical lasers
Author(s): Tetsumi Sumiyoshi; Shu-ichi Ashidate; Fumihiko Kannari; Minoru Obara
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Paper Abstract

We demonstrated a high energy delivery of a pulsed wavelength-selected HF chemical laser by fluoride glass fibers (core/cladding equals 450/500 micrometers ). 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/l can be obtained with a gas mixture consisting of F2/H2/He equals 10/4/786 (Torr) by successfully suppressing the ASE.

Paper Details

Date Published: 4 May 1993
PDF: 8 pages
Proc. SPIE 1810, 9th International Symposium on Gas Flow and Chemical Lasers, (4 May 1993); doi: 10.1117/12.144643
Show Author Affiliations
Tetsumi Sumiyoshi, Keio Univ. (Japan)
Shu-ichi Ashidate, Keio Univ. (Japan)
Fumihiko Kannari, Keio Univ. (Japan)
Minoru Obara, Keio Univ. (Japan)

Published in SPIE Proceedings Vol. 1810:
9th International Symposium on Gas Flow and Chemical Lasers
Costas Fotakis; Costas Kalpouzos; Theodore G. Papazoglou, Editor(s)

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