Development of high-power copper vapor laser system

Hironobu Kimura; Nobutada Aoki; Noriyasu Kobayashi; Chikara Konagai; Eiji Seki; Motohisa Abe; Hideo Mori

doi:10.1117/12.375152

11 January 2000 Development of high-power copper vapor laser system

Hironobu Kimura, Nobutada Aoki, Noriyasu Kobayashi, Chikara Konagai, Eiji Seki, Motohisa Abe, Hideo Mori

Proceedings Volume 3886, High-Power Lasers in Energy Engineering; (2000) https://doi.org/10.1117/12.375152
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

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.

Citation Download Citation

Hironobu Kimura, Nobutada Aoki, Noriyasu Kobayashi, Chikara Konagai, Eiji Seki, Motohisa Abe, and Hideo Mori "Development of high-power copper vapor laser system", Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); https://doi.org/10.1117/12.375152

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