Tunable laser, a method for making, and a method for operating such a laser

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	Tunable laser, a method for making, and a method for operating such a laser
其他题名	Tunable laser, a method for making, and a method for operating such a laser
	BISMUTO, ALFREDO; WOLF, JOHANNA; MUELLER, ANTOINE; FAIST, JEROME
	2015-12-08
专利权人	ALPES LASERS SA
公开日期	2015-12-08
授权国家	美国
专利类型	授权发明
摘要	Semiconductor lasers, in particular Quantum Cascade Lasers (QCLs) are tuable especially in the mid-IR spectral range, e.g. in wavelengths of about 3-14 μm, by precisely controlling the laser's temperature in the vicinity of the active region. The present invention introduces a novel design for locally heating the active region, thereby allowing fast heating and thus tuning a laser. It is generally applicable for lasers across the field, e.g. to QCLs with multi-color emitters or to Vertical-Cavity Single-Emitter Lasers (VCSELs) or to Distributed Feedback (DFB) lasers. Essentially, the invention consists of structurally integrating a heating resistor as part of the laser, placed close to the component to be temperature-controlled, i.e. the active region or the grating, etc., and feeding this resistor with a variable electrical current in order to locally control the thermal dissipation. In multi-emitter lasers, a resistor can be associated with each emitter section to tune the temperature of each section and thus its emitted wavelength. Similarly, in multisection DBR lasers, with a resistor associated with each grating, the latter can be tuned and thus the associated wavelength of the optical cavity. The invention also includes a novel manufacturing process, especially for buried heterostructure lasers.
其他摘要	半导体激光器，特别是量子级联激光器（QCL）尤其在中红外光谱范围内是可调谐的，例如，通过精确控制激光器在有源区附近的温度，在约3-14μm的波长范围内。本发明介绍了一种用于局部加热有源区的新颖设计，从而允许快速加热并因此调谐激光器。它通常适用于整个场地的激光，例如使用多色发射器或垂直腔单发射器激光器（VCSEL）或分布式反馈（DFB）激光器的QCL。本质上，本发明包括在结构上集成加热电阻器作为激光器的一部分，靠近待温度控制的部件，即有源区域或光栅等，并且按顺序为该电阻器提供可变电流。本地控制散热。在多发射器激光器中，电阻器可以与每个发射器部分相关联，以调节每个部分的温度，从而调节其发射波长。类似地，在多节DBR激光器中，具有与每个光栅相关联的电阻器，后者可以被调谐，因此可以调谐光学腔的相关波长。本发明还包括一种新颖的制造工艺，特别是用于掩埋异质结构激光器。
申请日期	2014-09-09
专利号	US9209600
专利状态	授权
申请号	US14/480812
公开（公告）号	US9209600
IPC 分类号	H01S3/04 \| H01S5/042 \| H01S5/06 \| H01S5/227 \| H01S5/183 \| H01S5/026 \| H01S5/0683 \| H01S5/22 \| H01S5/40 \| H01S5/34 \| H01S5/024 \| H01S5/0625 \| H01S5/32
专利代理人	-
代理机构	RENNER, OTTO, BIOSSELLE & SKLAR, LLP
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/48863
专题	半导体激光器专利数据库
作者单位	ALPES LASERS SA
推荐引用方式 GB/T 7714	BISMUTO, ALFREDO,WOLF, JOHANNA,MUELLER, ANTOINE,et al. Tunable laser, a method for making, and a method for operating such a laser. US9209600[P]. 2015-12-08.

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