发明公开
EP2097955A1 BROADLY TUNABLE SINGLE-MODE QUANTUM CASCADE LASER SOURCES AND SENSORS
有权
宽调谐单模量子级联激光器源和传感器
- 专利标题： BROADLY TUNABLE SINGLE-MODE QUANTUM CASCADE LASER SOURCES AND SENSORS
- 专利标题（中）： 宽调谐单模量子级联激光器源和传感器
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申请号： EP07873659.2申请日： 2007-12-05
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公开(公告)号： EP2097955A1公开(公告)日： 2009-09-09
- 发明人: BELKIN, Mikhail, A. , LEE, Benjamin, G. , AUDET, Ross, M. , MACARTHUR, James, B , DIEHL, Laurent , CAPASSO, Federico , PFLUGL, Christian
- 申请人： President and Fellows of Harvard College
- 申请人地址： 17 Quincy Street Cambridge, MA 02142 US
- 专利权人： President and Fellows of Harvard College
- 当前专利权人： President and Fellows of Harvard College
- 当前专利权人地址： 17 Quincy Street Cambridge, MA 02142 US
- 代理机构： Hofmann, Harald
- 优先权： US611819 20061215
- 国际公布： WO2008127454 20081023
- 主分类号： H01S3/10
- IPC分类号： H01S3/10
摘要：
A broadly tunable single-mode infrared laser source based on semiconductor lasers. The laser source has two parts: an array of closely-spaced DFB QCLs (or other semiconductor lasers) and a controller that can switch each of the individual lasers in the array on and off, set current for each of the lasers and, and control the temperature of the lasers in the array. The device can be used in portable broadband sensors to simultaneously detect a large number of compounds including chemical and biological agents. A microelectronic controller is combined with an array of individually-addressed DFB QCLs with slightly different DFB grating periods fabricated on the same broadband (or multiple wavelengths) QCL material.
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