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	Optical amplifier for quantum cascade laser
	CAPASSO, FEDERICO; CHO, ALFRED YI; GMACHL, CLAIRE F.; SIVCO, DEBORAH LEE; TROCCOLI, MARIANO
	2004-12-28
著作权人	ALCATEL-LUCENT USA INC.
专利号	US6836499
国家	美国
文献子类	授权发明
其他题名	Optical amplifier for quantum cascade laser
英文摘要	Techniques for amplifying light produced by a quantum cascade laser are described. An assembly according to the present invention includes an optical amplifier having an optical input and an optical output. The optical output has an area significantly greater than that of the optical output and the geometry of the amplifier is such that the amplifier widens from the optical input to the optical output. The optical amplifier is formed of a layered waveguide structure which achieves quantum confinement of electrons and photons within the active region. A distributed feedback laser is suitably coupled to the optical amplifier at the optical input of the amplifier. The widening of the amplifier makes available a large number of electrons, so that the amplifier is able to produce many photons resulting from stimulated transitions caused by introduction of light to the optical input of the amplifier, even if the great majority of the transitions occur nonradiatively.
公开日期	2004-12-28
申请日期	2002-05-24
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/47294]
专题	半导体激光器专利数据库
作者单位	ALCATEL-LUCENT USA INC.
推荐引用方式 GB/T 7714	CAPASSO, FEDERICO,CHO, ALFRED YI,GMACHL, CLAIRE F.,et al. Optical amplifier for quantum cascade laser. US6836499. 2004-12-28.

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