Wavelength stabilization of laser diodes by temperature control

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	Wavelength stabilization of laser diodes by temperature control
其他题名	Wavelength stabilization of laser diodes by temperature control
	PIERER, JORG; JAMES, RONY JOSE; MOHRDIEK, STEFAN; DYKAAR, DOUGLAS R.; DOMM, JOHN
	2019-07-25
专利权人	NORTH INC.
公开日期	2019-07-25
授权国家	美国
专利类型	发明申请
摘要	Systems, devices, and methods for providing optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. The optical engines of the present disclosure may integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. Wavelength stabilization for the laser diodes is achieved by controlling the temperature of the lasers to always be in a particular range of operating specifications which provides wavelength stabilization that meets particular performance criteria. The lasers themselves may be used for temperature control by selectively switching them on to maintain their temperature within a specified range. Alternatively, compact resistive heaters may be positioned proximate the laser diodes to control the temperature of the laser diodes during operation. WHUDs that employ such optical engines and laser projectors are also described. Additionally, optical systems for collimating and shifting light beams are described.
其他摘要	描述了用于提供非常适合用于可佩戴抬头显示器（WHUD）的光学引擎和激光投影仪的系统，设备和方法。本公开的光学引擎可以在单个气密或部分气密密封的封装封装内集成多个激光二极管（例如，3个激光二极管，4个激光二极管）。通过将激光器的温度控制在特定的操作规范范围内来实现激光二极管的波长稳定，这提供了满足特定性能标准的波长稳定性。激光器本身可以通过选择性地将它们接通以将它们的温度保持在特定范围内来用于温度控制。或者，可以将紧凑的电阻加热器定位在激光二极管附近，以在操作期间控制激光二极管的温度。还描述了采用这种光学引擎和激光投影仪的WHUD。另外，描述了用于准直和移动光束的光学系统。
申请日期	2019-01-23
专利号	US20190229495A1
专利状态	申请中
申请号	US16/254912
公开（公告）号	US20190229495A1
IPC 分类号	H01S5/068 \| G02B27/01 \| H01S5/022 \| H01S5/00 \| H01S5/40 \| H01S5/024 \| G02B26/10
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/181661/89925
专题	半导体激光器专利数据库
作者单位	NORTH INC.
推荐引用方式 GB/T 7714	PIERER, JORG,JAMES, RONY JOSE,MOHRDIEK, STEFAN,et al. Wavelength stabilization of laser diodes by temperature control. US20190229495A1[P]. 2019-07-25.