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	Methods, systems, and apparatus for high energy optical-pulse amplification at high average power
	ZAPATA, LUIS E.; KAERTNER, FRANZ X.
	2013-11-14
著作权人	MASSACHUSETTS INSTITUTE OF TECHNOLOGY
专利号	US20130301117A1
国家	美国
文献子类	发明申请
其他题名	Methods, systems, and apparatus for high energy optical-pulse amplification at high average power
英文摘要	An inventive composite optical gain medium capable includes a thin-disk gain layer bonded to an index-matched cap. The gain medium's surface is shaped like a paraboloid frustum or other truncated surface of revolution. The gain medium may be cryogenically cooled and optically pumped to provide optical gain for a pulsed laser beam. Photons emitted spontaneously in the gain layer reflect off or refract through the curved surface and out of the gain medium, reducing amplified spontaneous emission (ASE). This reduces limits on stored energy and gain imposed by ASE, enabling higher average powers (e.g., 100-10,000 Watts). Operating at cryogenic temperatures reduces thermal distortion caused by thermo-mechanical surface deformations and thermo-optic index variations in the gain medium. This facilitates the use of the gain medium in an image-relayed, multi-pass architecture for smoothed extraction and further increases in peak pulse energy (e.g., to 1-100 Joules).
公开日期	2013-11-14
申请日期	2013-03-14
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/54422]
专题	半导体激光器专利数据库
作者单位	MASSACHUSETTS INSTITUTE OF TECHNOLOGY
推荐引用方式 GB/T 7714	ZAPATA, LUIS E.,KAERTNER, FRANZ X.. Methods, systems, and apparatus for high energy optical-pulse amplification at high average power. US20130301117A1. 2013-11-14.

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