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

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    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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