GOALI: Widely Tunable Gasb-Based Diode Lasers for Spectroscopy

GOALI：用于光谱学的宽范围可调谐 Gasb 二极管激光器

• 批准号: 1408126
• 负责人: Leon Shterengas
• 金额: $ 40.93万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-08-15 至 2018-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1408126&HistoricalAwards=false
• 关键词: GOALI; Widely; Tunable; Gasb; Based

GOALI: Widely Tunable GaSb-based Diode Lasers for SpectroscopyThe objective of this program is to address the current industrial need for compact efficient mid-infrared laser sources for spectroscopic applications. Diffraction limited GaSb-based diode lasers with extra-broad gain spectra suitable for direct integration into external cavity state-of-the-art spectroscopic systems developed by industrial collaborators at DayLight Solutions will be designed and developed. The proposed device applications include: gas leak monitoring in refineries and near the pipe lines, methane control inside underground coal mines and others. The new devices can be used for studies of chemical and radiation transfer processes in atmosphere, control of greenhouse gasses, for studies of marine environments and planetary research. There is significant commercial interest in tunable laser sources for spectroscopic applications as envisioned by industrial partner. Novel lasers will be utilized for development of the prototypes of the commercial products. The testing of the fabricated devices will be performed with participation of Stony Brook University students.This work will involve the design of a novel type of diode lasers with triple layer quantum well active region with engineered subband structure. Devices emitting in spectral region from 3.1 to 3.4 microns at room temperature will be sent to the industrial collaborator to perform die-attach tests. The mounted devices will be extensively characterized via optical measurements. Diode lasers with different heterostructure designs for the active region based on triple layer quantum wells having wide optical gain spectra will be fabricated and characterized. Cascade pumping will be utilized to minimize threshold current to achieve room temperature operation in the spectral region from 3 to 4 µm. The proposed efforts will include the design and development of ultra-low-reflection optical coatings optimized for antimonide-based heterostructures. The GaSb-based diode laser technology will be available for spectroscopic applications in home security and commercial sectors.

守门员：用于光谱的基于可调的燃气二极管激光器该程序的目的是满足当前对光谱应用的紧凑型高效中红外激光源的工业需求。衍射有限的基于BASB的二极管激光器具有额外的BROAD增益光谱，适合将工业合作者在Daylight Solutions上开发的外部空腔最先进的光谱系统。提议的设备应用包括：炼油厂和管道附近的气体泄漏监测，地下煤矿内的甲烷控制。新设备可用于研究大气中的化学和辐射转移过程，对温室气体的控制，海洋环境和行星研究的研究。工业合作伙伴设想的光谱应用可调节激光源具有很大的商业兴趣。新型激光器将用于开发商业产品的原型。制造设备的测试将与Stony Brook University学生的参与一起进行。这项工作将涉及设计具有三层量子量子良好活跃区域的新型二极管激光器，并具有工程性的子带结构。在室温下从3.1到3.4微米发射的设备将发送给工业合作者，以执行模具测试。安装的设备将通过光学测量进行广泛表征。基于具有宽光光谱光谱的三层量子孔的活性区域的异质结构设计的二极管激光器将被制造和表征。级联抽水将用于最大程度地减少阈值电流，以从3至4 µm的光谱区域实现室温运行。拟议的努力将包括针对基于抗氧化物的异质结构优化的超低反射光学涂层的设计和开发。基于煤气的二极管激光技术将用于家庭安全和商业领域的光谱应用。