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JP2011101003A Laser diode structure with temperature-controlled beam shaping element and method for gas detection by means of laser diode structure 有权
标题翻译：具有温度控制波束形状元件的激光二极管结构和通过激光二极管结构进行气体检测的方法
公开(公告)号：JP2011101003A
公开(公告)日：2011-05-19
申请号：JP2010240601
申请日：2010-10-27
申请人： Leister Process Technologies , ライスタープロセステクノロジーズ
发明人： WILLING BERT , PROTASIO RUI , GAILLARD MATHIEU
IPC分类号： H01S5/022
CPC分类号： G01N21/3504 , G01J3/10 , G01J3/42 , G01J2003/423 , G01N21/39 , G01N2021/399 , G01N2201/0612 , G01N2201/0633 , H01S5/02212 , H01S5/02296 , H01S5/02415 , H01S5/02438 , H01S5/0267 , H01S5/18388
摘要： PROBLEM TO BE SOLVED: To provide a laser diode structure that improves sensitivity of detection of a gas by reducing interference of a laser beam.
SOLUTION: The laser diode structure 1 for use in gas detection includes a hermetically sealed casing 2 having an electric coupling portion 3, a bottom portion 4 and a window 5. A laser diode chip 6 and temperature control portions 9, 12 for the chip are provided in the casing 2. A thermoelectric element 12 serving as a Peltier element as a part of the temperature control portions is coupled to the bottom portion 4 of the casing 2 through a bottom surface 13, and coupled to the laser chip 6 through an upper surface 11. A temperature-controlled beam shaping member 14 which is provided between the diode chip 6 and window 5 and dims the laser beam 7, emitted from an opening of the laser diode chip 6, in parallel before the laser beam 7 passes through the window 5. The beam shaping member 14 in contact with the laser diode chip 6 is preferably in surface-to-surface contact with or bonded to the opening 8 through its boundary surface 16, or formed integrally with the opening 8.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种激光二极管结构，其通过减少激光束的干涉来提高气体检测的灵敏度。解决方案：用于气体检测的激光二极管结构1包括具有电耦合部3，底部4和窗口5的密封壳体2.激光二极管芯片6和温度控制部分9,12，用于芯片设置在壳体2中。用作珀尔帖元件的作为温度控制部分的一部分的热电元件12通过底表面13联接到壳体2的底部4，并且连接到激光芯片6 设置在二极管芯片6和窗口5之间并使激光束7从激光二极管芯片6的开口发射的激光束7在激光束7之前平行地调光的温度控制的光束成形部件14 与激光二极管芯片6接触的光束成形构件14优选地通过其边界表面16与开口8的表面到表面接触或接合到开口8，或者与开口8一体地形成。 P> COPYRIG HT：（C）2011，JPO＆INPIT

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