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1. 发明申请

US20120268743A1 LASER CHARACTERIZATION SYSTEM AND PROCESS 失效
标题翻译：激光特性系统与工艺
公开(公告)号：US20120268743A1
公开(公告)日：2012-10-25
申请号：US13303648
申请日：2011-11-23
申请人： Yin Wang , Gerard P. Wysocki , Feng Xie , Chung-En Zah
发明人： Yin Wang , Gerard P. Wysocki , Feng Xie , Chung-En Zah
IPC分类号： G01N21/25 , F21V13/12 , F21V13/10
CPC分类号： H01S5/0042 , B82Y20/00 , G01J1/0403 , G01J1/0407 , G01J1/0414 , G01J3/021 , G01J3/1804 , G01J2001/4247 , G01R31/2635 , H01S5/141 , H01S5/3401
摘要： A system and process for automatically characterizing a plurality of external cavity semiconductor laser chips on a semiconductor laser bar separated from a semiconductor wafer. The system includes a diffraction grating and a steering mirror mounted on a rotary stage for rotating the diffraction grating through a range of diffraction angles. A laser bar positioning stage for automatically aligning each laser chip in a laser bar with the diffraction grating. Reflecting a laser beam emitted from a laser chip in a laser bar with diffraction grating and steering mirror to the laser analyzer. Automatically rotating the diffraction grating through a range of diffraction angles relative to the laser beam and automatically characterizing the laser optical properties such as spectra, power, or spatial modes with the laser analyzer at each diffraction angle.
摘要翻译：一种用于在与半导体晶片分离的半导体激光棒上自动表征多个外腔半导体激光器芯片的系统和工艺。该系统包括安装在旋转台上的衍射光栅和转向镜，用于通过衍射角范围旋转衍射光栅。激光棒定位台，用于将激光棒中的每个激光芯片与衍射光栅自动对准。将激光棒中的激光芯片的衍射光栅和导向反射镜的激光束反射到激光分析仪。通过相对于激光束的衍射角自动旋转衍射光栅，并自动表征激光光学性质，如激光分析仪在每个衍射角度下的光谱，功率或空间模式。

2. 发明授权

US08670109B2 Laser characterization system and process 失效
标题翻译：激光表征系统和工艺
公开(公告)号：US08670109B2
公开(公告)日：2014-03-11
申请号：US13303648
申请日：2011-11-23
申请人： Yin Wang , Gerard P. Wysocki , Feng Xie , Chung-En Zah
发明人： Yin Wang , Gerard P. Wysocki , Feng Xie , Chung-En Zah
IPC分类号： G01N21/00
CPC分类号： H01S5/0042 , B82Y20/00 , G01J1/0403 , G01J1/0407 , G01J1/0414 , G01J3/021 , G01J3/1804 , G01J2001/4247 , G01R31/2635 , H01S5/141 , H01S5/3401
摘要： A system and process for automatically characterizing a plurality of external cavity semiconductor laser chips on a semiconductor laser bar separated from a semiconductor wafer. The system includes a diffraction grating and a steering mirror mounted on a rotary stage for rotating the diffraction grating through a range of diffraction angles. A laser bar positioning stage for automatically aligning each laser chip in a laser bar with the diffraction grating. Reflecting a laser beam emitted from a laser chip in a laser bar with diffraction grating and steering mirror to the laser analyzer. Automatically rotating the diffraction grating through a range of diffraction angles relative to the laser beam and automatically characterizing the laser optical properties such as spectra, power, or spatial modes with the laser analyzer at each diffraction angle.
摘要翻译：一种用于在与半导体晶片分离的半导体激光棒上自动表征多个外腔半导体激光器芯片的系统和工艺。该系统包括安装在旋转台上的衍射光栅和转向镜，用于通过衍射角范围旋转衍射光栅。激光棒定位台，用于将激光棒中的每个激光芯片与衍射光栅自动对准。将激光棒中的激光芯片的衍射光栅和导向反射镜的激光束反射到激光分析仪。通过相对于激光束的衍射角自动旋转衍射光栅，并自动表征激光光学性质，如激光分析仪在每个衍射角度下的光谱，功率或空间模式。

3. 发明申请

US20130221223A1 SURFACE EMITTING MULTIWAVELENGTH DISTRIBUTED-FEEDBACK CONCENTRIC RING LASERS 审中-公开
标题翻译：表面发射多波长分布式反馈浓度环激光
公开(公告)号：US20130221223A1
公开(公告)日：2013-08-29
申请号：US13772694
申请日：2013-02-21
申请人： Catherine Genevieve Caneau , Feng Xie , Chung-En Zah
发明人： Catherine Genevieve Caneau , Feng Xie , Chung-En Zah
IPC分类号： H01S5/32 , G01N21/59
摘要： Multi-surface emitting mid-IR multiwavelength distributed-feedback quantum cascade ring lasers laid out in a concentric circle are disclosed. The lasers utilize quantum cascade core designs to produce optical gain in the mid-infrared region and may generate several wavelengths simultaneously or sequentially. Methods of making along with methods of using such devices are also disclosed.
摘要翻译：公开了布置在同心圆中的多表面发射中IR多波长分布反馈量子级联环形激光器。激光器利用量子级联核心设计来在中红外区域产生光学增益，并且可以同时或顺序地产生几个波长。还公开了使用这种装置的方法的方法。

4. 发明申请

US20120236890A1 P-TYPE ISOLATION REGIONS ADJACENT TO SEMICONDUCTOR LASER FACETS 有权
标题翻译： P型隔离区域与半导体激光表面相邻
公开(公告)号：US20120236890A1
公开(公告)日：2012-09-20
申请号：US13050058
申请日：2011-03-17
申请人： Catherine G. Caneau , Feng Xie , Chung-En Zah
发明人： Catherine G. Caneau , Feng Xie , Chung-En Zah
IPC分类号： H01S5/343 , H01L33/00 , H01S5/34
CPC分类号： H01S5/3402 , B82Y20/00 , H01S5/06256 , H01S5/1017 , H01S5/168 , H01S5/2224 , H01S5/2231
摘要： A quantum cascade laser and its method of fabrication are provided. The quantum cascade laser comprises one or more p-type electrical isolation regions and a plurality of electrically isolated laser sections extending along a waveguide axis of the laser. An active waveguide core is sandwiched between upper and lower n-type cladding layers and the active core and the upper and lower n-type cladding layers extend through the electrically isolated laser sections of the quantum cascade laser. A portion of the upper n-type cladding layer comprises sufficient p-type dopant to have become p-type and to have become an electrical isolation region, which extends across at least a part of the thickness upper n-type cladding layer along a projection separating the sections of the quantum cascade laser. Laser structures are also contemplated where isolation regions are solely provided at the window facet sections of the laser to provide vertical isolation in the facet sections, to reduce the current into the facet regions of the laser, and help minimize potentially harmful facet heating.
摘要翻译：提供了量子级联激光器及其制造方法。量子级联激光器包括沿着激光器的波导轴线延伸的一个或多个p型电隔离区域和多个电隔离的激光器部分。有源波导芯夹在上，下n型覆层之间，有源芯和上，下n型覆层延伸穿过量子级联激光器的电隔离激光器部分。上部n型包覆层的一部分包括足够的p型掺杂剂以成为p型并且已经成为电绝缘区域，其沿厚度的上部n型包覆层的至少一部分沿突出部分离量子级联激光器的部分。还设想了激光结构，其中仅在激光器的窗口部分处提供隔离区域以在小平面部分中提供垂直隔离，以减少进入激光器的小面区域的电流，并且帮助最小化潜在的有害面积加热。

5. 发明申请

US20120236889A1 P-TYPE ISOLATION BETWEEN QCL REGIONS 有权
标题翻译： QCL地区之间的P型隔离
公开(公告)号：US20120236889A1
公开(公告)日：2012-09-20
申请号：US13050026
申请日：2011-03-17
申请人： Catherine G. Caneau , Feng Xie , Chung-En Zah
发明人： Catherine G. Caneau , Feng Xie , Chung-En Zah
IPC分类号： H01S5/34 , H01L33/00 , H01S5/343
CPC分类号： H01S5/06256 , B82Y20/00 , H01S5/1017 , H01S5/168 , H01S5/2224 , H01S5/2231 , H01S5/3402
摘要： A quantum cascade laser and its method of fabrication are provided. The quantum cascade laser comprises one or more p-type electrical isolation regions and a plurality of electrically isolated laser sections extending along a waveguide axis of the laser. An active waveguide core is sandwiched between upper and lower n-type cladding layers and the active core and the upper and lower n-type cladding layers extend through the electrically isolated laser sections of the quantum cascade laser. A portion of the upper n-type cladding layer comprises sufficient p-type dopant to have become p-type and to have become an electrical isolation region, which extends across at least a part of the thickness upper n-type cladding layer along a projection separating the sections of the quantum cascade laser.
摘要翻译：提供了量子级联激光器及其制造方法。量子级联激光器包括沿着激光器的波导轴线延伸的一个或多个p型电隔离区域和多个电隔离的激光器部分。有源波导芯夹在上，下n型覆层之间，有源芯和上，下n型覆层延伸穿过量子级联激光器的电隔离激光器部分。上部n型包覆层的一部分包括足够的p型掺杂剂以成为p型并且已经成为电绝缘区域，其沿厚度的上部n型包覆层的至少一部分沿突出部分离量子级联激光器的部分。

6. 发明授权

US09917421B2 P-type isolation regions adjacent to semiconductor laser facets 有权
公开(公告)号：US09917421B2
公开(公告)日：2018-03-13
申请号：US13050058
申请日：2011-03-17
申请人： Catherine G. Caneau , Feng Xie , Chung-En Zah
发明人： Catherine G. Caneau , Feng Xie , Chung-En Zah
IPC分类号： H01S5/34 , B82Y20/00 , H01S5/0625 , H01S5/16 , H01S5/10 , H01S5/22 , H01S5/223
CPC分类号： H01S5/3402 , B82Y20/00 , H01S5/06256 , H01S5/1017 , H01S5/168 , H01S5/2224 , H01S5/2231
摘要： A quantum cascade laser and its method of fabrication are provided. The quantum cascade laser comprises one or more p-type electrical isolation regions and a plurality of electrically isolated laser sections extending along a waveguide axis of the laser. An active waveguide core is sandwiched between upper and lower n-type cladding layers and the active core and the upper and lower n-type cladding layers extend through the electrically isolated laser sections of the quantum cascade laser. A portion of the upper n-type cladding layer comprises sufficient p-type dopant to have become p-type and to have become an electrical isolation region, which extends across at least a part of the thickness upper n-type cladding layer along a projection separating the sections of the quantum cascade laser. Laser structures are also contemplated where isolation regions are solely provided at the window facet sections of the laser to provide vertical isolation in the facet sections, to reduce the current into the facet regions of the laser, and help minimize potentially harmful facet heating.

7. 发明申请

US20130136148A1 Quantum Cascade Laser Design With Stepped Well Active Region 有权
标题翻译：量子级联激光设计与步进井活跃区域
公开(公告)号：US20130136148A1
公开(公告)日：2013-05-30
申请号：US13661559
申请日：2012-10-26
申请人： Catherine Genevieve Caneau , Feng Xie , Chung-En Zah
发明人： Catherine Genevieve Caneau , Feng Xie , Chung-En Zah
IPC分类号： H01S5/34
CPC分类号： H01S5/3402 , B82Y20/00 , H01S5/3403 , H01S5/3407
摘要： Included are embodiments of a quantum cascade laser structure. Some embodiments include a plurality of quantum wells and a plurality of barriers, at least a portion of which define an active region. In some embodiments, a photon is emitted in the active region when an electron transitions from an upper laser state in the active region to a lower laser state in the active region. Additionally, a final quantum well in the plurality of quantum wells may define the active region, where the final quantum well extends below an adjacent quantum well in the active region. Similarly, the final quantum well may include a thickness that is less than a thickness of the adjacent quantum well in the active region.
摘要翻译：包括量子级联激光器结构的实施例。一些实施例包括多个量子阱和多个阻挡层，其至少一部分限定有源区域。在一些实施例中，当电子从有源区中的上激光状态跃迁到有源区中的较低激光状态时，在有源区中发射光子。另外，多个量子阱中的最终量子阱可以限定有源区，其中最终量子阱在有源区内相邻量子阱的下方延伸。类似地，最终量子阱可以包括小于活性区域中相邻量子阱的厚度的厚度。

8. 发明申请

US20130114628A1 MULTI-WAVELENGTH DBR LASER 审中-公开
标题翻译：多波长DBR激光
公开(公告)号：US20130114628A1
公开(公告)日：2013-05-09
申请号：US13570719
申请日：2012-08-09
申请人： Catherine Genevieve Caneau , Feng Xie , Chung-En Zah
发明人： Catherine Genevieve Caneau , Feng Xie , Chung-En Zah
IPC分类号： H01S5/125
CPC分类号： B82Y20/00 , H01S5/0612 , H01S5/06256 , H01S5/1215 , H01S5/3401 , H01S5/3402
摘要： A multi-wavelength distributed Bragg reflector (DBR) laser diode is provided including front and rear DBR sections and a plurality of dedicated tuning signal control nodes. The front DBR section includes a plurality of front wavelength selective grating sections defining a plurality of distinct grating periodicities λ1*, λ2* . . . corresponding to distinct Bragg wavelengths λS1*, λS2* . . . . The rear DBR section comprises a plurality of rear wavelength selective grating sections defining a plurality of distinct grating periodicities λ1, λ2 . . . corresponding to distinct Bragg wavelengths λS1, λS2 . . . . The tuning signal control nodes are associated with corresponding front wavelength selective grating sections, rear wavelength selective grating sections, or both, such that tuning signals applied to one or more of the dedicated tuning signal control nodes spectrally aligns select Bragg wavelengths λS1*, λS2* . . . of the front DBR section with a selected distinct Bragg wavelengths λS1, λS2 . . . of the rear DBR section.
摘要翻译：提供了多波长分布布拉格反射器（DBR）激光二极管，其包括前后DBR部分和多个专用调谐信号控制节点。前DBR部分包括限定多个不同光栅周期性λ1*，λ2*的多个前波长选择光栅部分。。。对应于不同的布拉格波长λS1*，λS2*。。。。后DBR部分包括限定多个不同的光栅周期性λ1，λ2的多个后波长选择光栅部分。。。对应于不同的布拉格波长λS1，λS2。。。。调谐信号控制节点与对应的前波长选择光栅部分，后波长选择光栅部分或两者相关联，使得施加到一个或多个专用调谐信号控制节点的调谐信号使选择布拉格波长λS1*，λS2* 。。。具有选定的不同布拉格波长λS1，λS2的前DBR部分。。。的后DBR部分。

9. 发明申请

US20110072886A1 Gas Sensor Based On Photoacoustic Detection 审中-公开
标题翻译：基于光声检测的气体传感器
公开(公告)号：US20110072886A1
公开(公告)日：2011-03-31
申请号：US12570606
申请日：2009-09-30
申请人： Catherine Genevieve Caneau , Anping Liu , Scott Christopher Pollard , Feng Xie , Chung-En Zah
发明人： Catherine Genevieve Caneau , Anping Liu , Scott Christopher Pollard , Feng Xie , Chung-En Zah
IPC分类号： G01N21/00
CPC分类号： G01N21/1702 , G01N2021/1704
摘要： A photoacoustic gas detector and photoacoustic gas detection method are disclosed. The detector includes a laser source, an acoustic resonator, and at least one tuning fork positioned along a longitudinal length of the resonator. The detector is capable of performing fast measurements of the concentration of one or more target gases over a broad temperature range.
摘要翻译：公开了一种光声气体检测器和光声气体检测方法。检测器包括激光源，声谐振器和沿着谐振器的纵向长度定位的至少一个音叉。检测器能够在宽的温度范围内快速测量一种或多种目标气体的浓度。

10. 发明授权

US08514902B2 P-type isolation between QCL regions 有权
标题翻译： QCL区域之间的P型隔离
公开(公告)号：US08514902B2
公开(公告)日：2013-08-20
申请号：US13050026
申请日：2011-03-17
申请人： Catherine G. Caneau , Feng Xie , Chung-En Zah
发明人： Catherine G. Caneau , Feng Xie , Chung-En Zah
IPC分类号： H01S5/00 , H01L21/00
CPC分类号： H01S5/06256 , B82Y20/00 , H01S5/1017 , H01S5/168 , H01S5/2224 , H01S5/2231 , H01S5/3402
摘要： A quantum cascade laser and its method of fabrication are provided. The quantum cascade laser comprises one or more p-type electrical isolation regions and a plurality of electrically isolated laser sections extending along a waveguide axis of the laser. An active waveguide core is sandwiched between upper and lower n-type cladding layers and the active core and the upper and lower n-type cladding layers extend through the electrically isolated laser sections of the quantum cascade laser. A portion of the upper n-type cladding layer comprises sufficient p-type dopant to have become p-type and to have become an electrical isolation region, which extends across at least a part of the thickness upper n-type cladding layer along a projection separating the sections of the quantum cascade laser.
摘要翻译：提供了量子级联激光器及其制造方法。量子级联激光器包括沿着激光器的波导轴线延伸的一个或多个p型电隔离区域和多个电隔离的激光器部分。有源波导芯夹在上，下n型覆层之间，有源芯和上，下n型覆层延伸穿过量子级联激光器的电隔离激光器部分。上部n型包覆层的一部分包括足够的p型掺杂剂以成为p型并且已经成为电绝缘区域，其沿厚度的上部n型包覆层的至少一部分沿突出部分离量子级联激光器的部分。

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