宇宙エネルギー利用を目的とした太陽光直接励起固体レーザーの開発

Autor: Saiki, Taku, Motokoshi, Shinji, Uchida, Shigeaki, Imasaki, Kazuo, Nakatsuka, Masahiro, Niino, Masayuki, Mori, Masahiro
Jazyk: japonština
Rok vydání: 2005
Předmět:
Zdroj: 第24回宇宙エネルギーシンポジウム 平成16年度 = The Twenty-fourth Space Energy Symposium March 7, 2005. :135-139
Popis: Space solar power station needs an energetic-effective lasers as an energy transfer device from partially coherent solar light to coherent laser light. A concept of active-mirror amplifier with transparent Nd/Cr:YAG ceramics is proposed under consideration how to convert a wide spectrum of sun-light to monochromatic laser light. New ceramic material pumped by an arc-metal-halide lamp has been implemented experimentally as a fundamental prototype for the space solar power station. CW laser light generated in a 1,064 nm Nd:YAG master laser oscillator was amplified so that a spatial mode of laser output has been improved to a quasi-single mode. The maximum output laser power obtained was up to 3 W with an input lamp power of 9 W resulting in an optical-optical conversion efficiency of 33 percent that was close to the theoretical prediction of 40 percent with keeping spatial beam quality.
資料番号: AA0049121018
Databáze: OpenAIRE