Increasing the spatial and spectral brightness of laser diode arrays

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	Increasing the spatial and spectral brightness of laser diode arrays
其他题名	Increasing the spatial and spectral brightness of laser diode arrays
	BEACH, RAYMOND, J.; DERI, ROBERT, J.; JOHNSON, MICHAEL, A.; KLINGMANN, JEFFREY, L.; MOLANDER, WILLIAM, A.; ROTTER, MARK, D.; RUNKEL, MICHAEL; SIDERS, CRAIG; WU, SHELDON, S.
	2016-03-31
专利权人	LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
公开日期	2016-03-31
授权国家	美国
专利类型	发明申请
摘要	Techniques for increasing the spatial and spectral brightness of laser arrays such as laser diode arrays are provided. Passive cavity designs are described that produce wavefront phase locking across the face of large arrays. These designs enable both spatial and spectral selectivity in order to coherently link the individual emitters that make up the diode array. Arrays of customized micro-optics correct aberrations of the individual apertures of the arrays while highly spectrally selective partial reflectors overcome the deleterious effects of inhomogeneities in local thermal environments of the individual emitters that are being phase locked together. Using these two technologies, along with intracavity diffractive beam coupling, solves two long standing problems that have prevented effective and robust phase locking of laser diode arrays.
其他摘要	提供了用于增加诸如激光二极管阵列的激光器阵列的空间和光谱亮度的技术。描述了无源腔设计，其在大阵列的表面上产生波前相位锁定。这些设计实现了空间和光谱选择性，以便相干地连接构成二极管阵列的各个发射器。定制的微光学阵列校正阵列的各个孔的像差，而高光谱选择性的部分反射器克服了相位锁定在一起的各个发射器的局部热环境中的不均匀性的有害影响。使用这两种技术，以及腔内衍射光束耦合，解决了两个长期存在的问题，这些问题阻碍了激光二极管阵列的有效和稳健的锁相。
主权项	An apparatus, comprising: an array of laser emitters for emitting a plurality of laser beams; at least one fast-axis collimating lens positioned to collimate the fast axis of said plurality of laser beams to produce first collimated beams; means for collimating the slow axis of said first collimated beams to produce second collimated beams; means for correcting smile error in said second collimated beams to produce corrected beams; a partial reflector operatively located to reflect each corrected beam of said corrected beams back into the respective laser emitter of said laser emitters from which said each corrected beam was emitted; and a diffractive coupler located between said means for correcting smile errors and said partial reflector.
申请日期	2014-09-30
专利号	US20160094016A1
专利状态	失效
申请号	US14/502850
公开（公告）号	US20160094016A1
IPC 分类号	H01S5/40 \| G02B27/14 \| G02B27/30 \| G02B27/42 \| G02B27/46 \| H01S5/00 \| H01S5/065 \| H01S5/068 \| H01S5/68 \| H01S5/65
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/51716
专题	半导体激光器专利数据库
作者单位	LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
推荐引用方式 GB/T 7714	BEACH, RAYMOND, J.,DERI, ROBERT, J.,JOHNSON, MICHAEL, A.,et al. Increasing the spatial and spectral brightness of laser diode arrays. US20160094016A1[P]. 2016-03-31.