Power and brightness scaling in fiber coupled diode lasers using diodes with optimized beam dimensions

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	Power and brightness scaling in fiber coupled diode lasers using diodes with optimized beam dimensions
其他题名	Power and brightness scaling in fiber coupled diode lasers using diodes with optimized beam dimensions
	CHEN, ZHIGANG; HEMENWAY, DAVID, MARTIN; KANSKAR, MANOJ
	2018-07-19
专利权人	NLIGHT, INC.
公开日期	2018-07-19
授权国家	世界知识产权组织
专利类型	发明申请
摘要	A number of beams that can be coupled into an optical fiber can be increased using emitted beams having greater divergence, thus providing increased beam power. Alternatively, with a fixed number of emitters, total optical power can be maintained with fewer beams in an output beam with a smaller numerical aperture.
其他摘要	可以使用具有更大发散的发射光束来增加可以耦合到光纤中的多个光束，从而提供增加的光束功率。或者，对于固定数量的发射器，可以在具有较小数值孔径的输出光束中用较少的光束维持总光功率。
主权项	An apparatus, comprising: a set of laser diodes with a predetermined spacing with respect to a stacking axis, each laser diode having an emission region defining a fast axis and a slow axis that produces an emitted beam having a fast axis beam full width of less than 62 μπι or a fast axis full width beam divergence of at least 48 degrees, wherein fast axes of each of the laser diodes are mutually parallel and are parallel to the stacking axis and slow axes of each of the laser diodes are mutually parallel and orthogonal to the stacking axis; fast axis collimators (FACs) associated with each of the laser diodes, each of the fast axis collimators having common focal length, wherein emission regions of each of the laser diodes are coupled to a respective fast axis collimator so as to produce respective beams that are collimated along the fast axes; an afocal telescope situated to receive the fast axis collimated beams from the fast axis collimators and produce a fast axis beam spacing based on the predetermined spacing and a magnification M associated with the afocal telescope; an objective lens situated to receive the fast axis collimated beams from the afocal telescope; and an optical fiber having a core situated to receive the fast axis collimated beams from the objective lens.
申请日期	2018-01-10
专利号	WO2018132498A1
专利状态	未确认
申请号	PCT/US2018/013201
公开（公告）号	WO2018132498A1
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/181661/57684
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,HEMENWAY, DAVID, MARTIN,KANSKAR, MANOJ. Power and brightness scaling in fiber coupled diode lasers using diodes with optimized beam dimensions. WO2018132498A1[P]. 2018-07-19.