宇宙太陽光励起レーザーの増幅システム最適化設計

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  • 大澤 健人
    福井大学大学院 工学研究科 電気･電子工学専攻

書誌事項

タイトル別名
  • Optimum Amplifier Design for Space Solar-Pumped Laser

抄録

A laser space solar power system (L-SSPS) supplies solar power in space to the earth by the laser beams at the giga-watt level in total. The amplifier of this system is required to output a large diameter beam and have good thermal resistant. Since an active-mirror amplifier meets these requirements, we calculated the 8-pass amplification of an active-mirror amplifier for continuous optical loss. In space, the laser medium must operate at high temperature. We assumed the temperature of the laser medium was 400 K for achieve higher more than 80% extraction efficiency. We chose the medium thickness was 0.3 cm and the number of slabs were 187, 20.21% laser efficiency was achieved. The optimized laser output strength was 3.1 kW/cm 2 per unit. We analyzed the effect of the optical wave front distortion caused by the pump distribution and determined the optimum overall amplifier design.

収録刊行物

  • レーザー研究

    レーザー研究 49 (1), 67-, 2021

    一般社団法人 レーザー学会

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