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	Phased array semiconductor lasers
	STREIFER, WILLIAM
	1987-09-30
著作权人	XEROX CORPORATION
专利号	EP0239352A2
国家	欧洲专利局
文献子类	发明申请
其他题名	Phased array semiconductor lasers
英文摘要	A phased array semiconductor laser (30) favoring emission in the 1st or Nth supermode over other potential supermodes of the laser comprising a plurality of spatially disposed laser elements (32-41) formed relative to an active region to provide optical cavities for light wave generation and propagation under lasing conditions and wherein the optical field of laser elements are coupled into the optical cavities of adjacent laser elements to provide a phase locked condition across the array. The position of the outer laser element (32,41) at each end of the array are spaced closer (D¹) to adjacent laser element compared to the spacing (D) provided between all the other of laser elements (33-40) such that the coupling across the array is enhanced to produce at least one supermode with an intensity envelope which for its most part is substantially uniform and rectangular shaped. The optimized optical coupling coefficient between the outer lasing elements and their adjacent laser elements is √2 K, where K is the optical coupling coefficient between the other laser elements. The optical coupling coefficient of √2 K between these outer lasing elements, however, may be within the range of 80% to 120% of √2 K. The phase of some of the laser elements in the array may be reversed 180°.
公开日期	1987-09-30
申请日期	1987-03-24
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/86880]
专题	半导体激光器专利数据库
作者单位	XEROX CORPORATION
推荐引用方式 GB/T 7714	STREIFER, WILLIAM. Phased array semiconductor lasers. EP0239352A2. 1987-09-30.

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