Concentric-Circle-Grating, Surface-Emitting Semiconductor Laser

同心圆光栅、表面发射半导体激光器

• 批准号: 9422572
• 负责人: Dennis Hall
• 金额: $ 33.49万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-01 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9422572&HistoricalAwards=false
• 关键词: Concentric; Circle; Grating; Surface; Emitting

9422572 Hall The research investigates the design, fabrication, and properties of electrically pumped concentric-circle-grating, surface-emitting (CCGSE) semiconductor lasers. Conventional Fabry-Perot semiconductor lasers emit broadly diverging beams with elliptical cross-sections. An optically pumped A1GaAs/GaAs CCGSE laser has already been demonstrated to emit a spectrally narrow (1nm), low divergence (1o), 10 milliwatt circular beam. CCGSE lasers have the potential for high power operation and superior beam quality. Such a laser would likely find widespread use in optical data storage, communications, medical instrumentation, sensing, inspection, and a variety of other applications. ***

9422572霍尔研究了电泵浦同心圆光栅表面发射半导体激光器的设计、制造和性能。传统的法布里-珀罗半导体激光器发射具有椭圆截面的宽发散光束。一台光泵浦的AlGaAs/GaAsCCGSE激光器已经被证明可以发射光谱窄(1 Nm)、低发散角(10)、10毫瓦的圆形光束。CCGSE激光器具有高功率运转和高光束质量的潜力。这样的激光器可能会在光学数据存储、通信、医疗仪器、传感、检查和各种其他应用中得到广泛使用。***