High-performance pulsed HF chemical lasers

Tetsumi Sumiyoshi; Shu-ichi Ashidate; Fumihiko Kannari; Minoru Obara

doi:10.1117/12.144643

4 May 1993 High-performance pulsed HF chemical lasers

Tetsumi Sumiyoshi, Shu-ichi Ashidate, Fumihiko Kannari, Minoru Obara

Proceedings Volume 1810, 9th International Symposium on Gas Flow and Chemical Lasers; (1993) https://doi.org/10.1117/12.144643
Event: Ninth International Symposium on Gas Flow and Chemical Lasers, 1992, Heraklion, Greece

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.

Citation Download Citation

Tetsumi Sumiyoshi, Shu-ichi Ashidate, Fumihiko Kannari, and Minoru Obara "High-performance pulsed HF chemical lasers", Proc. SPIE 1810, 9th International Symposium on Gas Flow and Chemical Lasers, (4 May 1993); https://doi.org/10.1117/12.144643

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