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	Enhanced efficiency laterally-coupled distributed feedback laser
	WATSON, CHRIS; PIMENOV, KIRILL; TOLSTIKHIN, VALERY, I.; LETAL, GREG; MOORE, RON
著作权人	ONECHIP PHOTONICS INC.
专利号	WO2009055894A1
国家	世界知识产权组织
文献子类	发明申请
其他题名	Enhanced efficiency laterally-coupled distributed feedback laser
英文摘要	The invention describes the method and apparatus for enhanced efficiency in a laterally- coupled distributed feedback (LC-DFB) laser. In a device featuring the effective ridge design, lateral confinement of the guided optical modes is provided by a surface etched grating, which also serves as a DFB element of the laser. Coupling and quantum efficiency of such a LC-DFB laser both improve with an increase of the lateral mode order. In accordance with this invention, a dramatic enhancement of the laser efficiency is achievable by designing it to operate in one of the higher order modes, notably the first order mode, while all the other lateral modes, including the zero order mode, are suppressed through gain-loss discrimination. In the exemplary embodiment of the invention, this enhanced efficiency technique is applied to the design of a single-mode LC-DFB laser suitable for a monolithic integration with other active and passive functional elements of photonic integrated circuits fabricated by using one-step epitaxial growth.
公开日期	2009-05-07
申请日期	2007-10-31
状态	未确认
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/43869]
专题	半导体激光器专利数据库
作者单位	ONECHIP PHOTONICS INC.
推荐引用方式 GB/T 7714	WATSON, CHRIS,PIMENOV, KIRILL,TOLSTIKHIN, VALERY, I.,et al. Enhanced efficiency laterally-coupled distributed feedback laser. WO2009055894A1.

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