High performance pulsed HF chemical lasers

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

doi:10.1117/12.144643

High performance pulsed HF chemical lasers

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

Research output: Contribution to journal › Conference article › peer-review

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 language	English
Pages (from-to)	240-247
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1810
DOIs	https://doi.org/10.1117/12.144643
Publication status	Published - 1992
Externally published	Yes
Event	9th International Symposium on Gas Flow and Chemical Lasers 1992 - Heraklion, Greece Duration: 1992 Sept 21 → 1992 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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10.1117/12.144643

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title = "High performance pulsed HF chemical lasers",

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.",

author = "Tetsumi Sumiyoshi and Ashidate, {Shu Ichi} and Fumihiko Kannari and Minoru Obara",

note = "Funding Information: This work was supported by the Nippon Sheet Glass Foundation for Materials Science. Publisher Copyright: {\textcopyright} 1992 Proceedings of SPIE - The International Society for Optical Engineering. All rights reserved.; 9th International Symposium on Gas Flow and Chemical Lasers 1992 ; Conference date: 21-09-1992 Through 25-09-1992",

year = "1992",

doi = "10.1117/12.144643",

language = "English",

volume = "1810",

pages = "240--247",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

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TY - JOUR

T1 - High performance pulsed HF chemical lasers

AU - Sumiyoshi, Tetsumi

AU - Ashidate, Shu Ichi

AU - Kannari, Fumihiko

AU - Obara, Minoru

N1 - Funding Information: This work was supported by the Nippon Sheet Glass Foundation for Materials Science. Publisher Copyright: © 1992 Proceedings of SPIE - The International Society for Optical Engineering. All rights reserved.

PY - 1992

Y1 - 1992

N2 - 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.

AB - 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.

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DO - 10.1117/12.144643

M3 - Conference article

AN - SCOPUS:85075585343

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VL - 1810

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EP - 247

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - 9th International Symposium on Gas Flow and Chemical Lasers 1992

Y2 - 21 September 1992 through 25 September 1992

ER -

High performance pulsed HF chemical lasers

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