High brightness coherent multi-junction diode lasers

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	High brightness coherent multi-junction diode lasers
其他题名	High brightness coherent multi-junction diode lasers
	CHEN, ZHIGANG; KANSKAR, MANOJ
	2017-10-12
专利权人	NLIGHT, INC.
公开日期	2017-10-12
授权国家	世界知识产权组织
专利类型	发明申请
摘要	Laser diodes ((210), (230)) formed on a common substrate (236) with layers ((212), (228)) of suitable thickness and refractive indices produce output beams that are coherently coupled. A phase mask can be situated to produce phase differences in one or more of the output beams to produce a common wavefront phase. The phase-corrected beams propagate with reduced angular divergence than conventional lasers that are not coherently coupled, and the coherently coupled laser diodes can provide higher beam brightness, enhanced beam parameter product, and superior power coupled into doped fibers in fiber lasers.
其他摘要	形成在具有合适厚度和折射率的层（（212），（228））的公共衬底（236）上的激光二极管（（210），（230））产生相干耦合的输出光束。可以设置相位掩模以在一个或多个输出光束中产生相位差，以产生共同的波前相位。相位校正光束以不同于非相干耦合的传统激光器的角度发散角传播，并且相干耦合激光二极管可以提供更高的光束亮度，增强的光束参数积和在光纤激光器中耦合到掺杂光纤中的优异功率。
主权项	A multi-emitter laser diode, comprising: a first active region associated with a lasing wavelength situated between an inner waveguide layer and an outer waveguide layer; a second active region associated with the lasing wavelength situated between an inner waveguide layer and an outer waveguide layer, wherein the inner waveguide layer of the first active region and the inner waveguide layer of the second active region are situated between the first active region and the second active region, and the first active region and the second active region are situated so that an optical beam propagating in the first active region is optically coupled to the second active region.
申请日期	2017-04-04
专利号	WO2017176791A1
专利状态	未确认
申请号	PCT/US2017/025990
公开（公告）号	WO2017176791A1
IPC 分类号	H01S5/40
专利代理人	JONES, MICHAEL, D.
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/57568
专题	半导体激光器专利数据库
作者单位	NLIGHT, INC.
推荐引用方式 GB/T 7714	CHEN, ZHIGANG,KANSKAR, MANOJ. High brightness coherent multi-junction diode lasers. WO2017176791A1[P]. 2017-10-12.