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	Gain-coupled distributed feedback semiconductor laser including first-order and second-order gratings
	MAKINO, TOSHIHIKO
	2012-02-21
著作权人	APPLIED OPTOELECTRONICS, INC.
专利号	US8121170
国家	美国
文献子类	授权发明
其他题名	Gain-coupled distributed feedback semiconductor laser including first-order and second-order gratings
英文摘要	A gain-coupled distributed feedback (DFB) semiconductor laser includes a grating formed by grooves through at least a part of an active region of a laser cavity. The DFB laser may be configured with a substantially pure gain-coupled grating and may be configured to provide facet power asymmetry. The grating may include at least a first-order grating section and a second-order grating section. A lasing wavelength may be obtained at the Bragg wavelength of the second-order grating section by substantially eliminating index coupling in the grating. The first-order grating section may act as a reflector for the lasing wavelength, thereby producing asymmetric power distribution in the laser cavity.
公开日期	2012-02-21
申请日期	2008-05-13
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/47615]
专题	半导体激光器专利数据库
作者单位	APPLIED OPTOELECTRONICS, INC.
推荐引用方式 GB/T 7714	MAKINO, TOSHIHIKO. Gain-coupled distributed feedback semiconductor laser including first-order and second-order gratings. US8121170. 2012-02-21.

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