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Proceedings Paper

Development of high-power copper vapor laser system
Author(s): Hironobu Kimura; Nobutada Aoki; Noriyasu Kobayashi; Chikara Konagai; Eiji Seki; Motohisa Abe; Hideo Mori
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Paper Abstract

A high power copper vapor laser (CVL) system in master oscillator power amplifier configuration has been developed for laser isotope separation program in Japan. Maximum output power of 650 W has been successfully achieved with 9- cm diameter and 350 cm discharge length amplifier. Also MOPA output power of 2.4 kW has been demonstrated in small master oscillator with 4 cm bore and 4 stage power amplifier with 9 cm bore configuration. The authors developed a thermal calculation code to maintain an optimum copper vapor density throughout a large volume and a new thermal insulation structure design method has been proposed to combine two different heat insulators to make longitudinal temperature distribution of the laser tube as flat as possible. A CVL discharge circuit has been improved by applying an excellent magnetic switch which prove a approximately 90 kV-4000 A pulse to a CVL at 4.4 kHz repetition rate. This paper reports such CVL design methods together with the performance of the designed high power CVL system.

Paper Details

Date Published: 11 January 2000
PDF: 12 pages
Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); doi: 10.1117/12.375152
Show Author Affiliations
Hironobu Kimura, Toshiba Corp. (Japan)
Nobutada Aoki, Toshiba Corp. (Japan)
Noriyasu Kobayashi, Toshiba Corp. (Japan)
Chikara Konagai, Toshiba Corp. (Japan)
Eiji Seki, Toshiba Corp. (Japan)
Motohisa Abe, Toshiba Corp. (Japan)
Hideo Mori, Laser Atomic Separation Engineering Research Association of Japan (Japan)

Published in SPIE Proceedings Vol. 3886:
High-Power Lasers in Energy Engineering
Kunioki Mima; Gerald L. Kulcinski; William J. Hogan, Editor(s)

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