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1. 发明授权

US08539816B2 Method and apparatus for locking a laser with a resonant cavity 有权
标题翻译：用于锁定具有谐振腔的激光器的方法和装置
公开(公告)号：US08539816B2
公开(公告)日：2013-09-24
申请号：US13105795
申请日：2011-05-11
申请人： Alexander Kachanov , Serguei Koulikov
发明人： Alexander Kachanov , Serguei Koulikov
IPC分类号： G01N21/00
CPC分类号： G01N21/1702 , G01N21/39 , G01N2021/1704
摘要： A system for locking a laser with a resonant optical cavity includes a laser that emits a laser beam, a resonant optical cavity having at least two cavity mirrors, one of which is a cavity coupling mirror, mode matching optics configured to couple the laser beam to the cavity via the cavity coupling mirror, means for applying a periodic dither or modulation waveform signal to the optical frequency of the incident laser beam or to the laser itself to thereby induce modulation of the intracavity optical power, and means for enabling a portion of the light emerging from the cavity coupling mirror to enter a cavity of the laser while maintaining an optical phase that results in periodic optical feedback locking whereby a mean optical frequency of the laser matches a resonance peak of the cavity.
摘要翻译：用于利用谐振光学腔锁定激光器的系统包括发射激光束的激光器，具有至少两个腔镜的谐振光腔，其中一个是空腔耦合镜，配置为将激光束耦合到通过腔耦合镜的空腔，用于将周期性抖动或调制波形信号施加到入射激光束的光频或激光器本身的装置，从而引起腔内光功率的调制，以及用于使从空腔耦合镜出现的光进入激光器的腔，同时保持导致周期性光学反馈锁定的光学相位，由此激光的平均光学频率与空腔的共振峰匹配。

2. 发明申请

US20130083328A1 LASER BASED CAVITY ENHANCED OPTICAL ABSORPTION GAS ANALYZER WITH LASER FEEDBACK OPTIMIZATION 有权
标题翻译：基于激光的加速光学吸收气体分析仪，具有激光反馈优化
公开(公告)号：US20130083328A1
公开(公告)日：2013-04-04
申请号：US13252915
申请日：2011-10-04
申请人： Serguei Koulikov , Alexander Kachanov
发明人： Serguei Koulikov , Alexander Kachanov
IPC分类号： G01C19/66
CPC分类号： G01N21/8507 , G01N21/1702 , G01N21/3504 , G01N21/39
摘要： Optical feedback assisted cavity enhanced absorption spectroscopy systems and methods for measuring trace gases with improved long-term stability and reproducibility include a laser coupled with a resonant optical cavity containing a gaseous medium and having at least two cavity mirrors and a plurality of optical resonance cavity modes. The laser emits continuous wave laser light with a mean optical frequency of the laser being adjustable over a range of frequencies, and the laser is responsive to optical feedback light emerging from the cavity. The transmissivity of at least one of the cavity mirrors is selected such that the intensity of the optical feedback light impinging on the laser is below a threshold intensity value so as to ensure that a frequency hold interval range of the optical frequency of the laser is smaller than a free spectral range of the cavity.
摘要翻译：用于测量具有改进的长期稳定性和再现性的痕量气体的光学反馈辅助腔增强吸收光谱系统和方法包括与包含气体介质并具有至少两个腔镜和多个光学谐振腔模的共振光学腔耦合的激光器。激光器发射连续波激光，激光的平均光频率可在一定频率范围内调节，并且激光器响应于从腔体出射的光反馈光。选择至少一个腔镜的透射率，使得入射到激光器上的光反馈光的强度低于阈值强度值，以确保激光器的光频率的频率保持间隔范围更小比空腔的自由光谱范围。

3. 发明申请

US20110216311A1 METHOD AND APPARATUS FOR LOCKING A LASER WITH A RESONANT CAVITY 有权
标题翻译：用于锁定具有谐振腔的激光的方法和装置
公开(公告)号：US20110216311A1
公开(公告)日：2011-09-08
申请号：US13105795
申请日：2011-05-11
申请人： Alexander Kachanov , Serguei Koulikov
发明人： Alexander Kachanov , Serguei Koulikov
IPC分类号： G01J1/00 , G01J1/42 , G02F1/35
CPC分类号： G01N21/1702 , G01N21/39 , G01N2021/1704
摘要： A method and apparatus for the photo-acoustic identification and quantification of one or more analyte species present in a gaseous or liquid medium in low concentration utilizing a laser and a resonant optical cavity containing the medium and having within the cavity at least two partially transparent mirrors, one of which is a cavity coupling mirror and one of which is moveably mounted on an assembly responsive to an input signal.
摘要翻译：一种用于利用激光器和含有介质的共振光学腔室在低浓度下存在于气体或液体介质中的一种或多种分析物质进行光声识别和定量的方法和装置，并且在空腔内具有至少两个部分透明的反射镜，其中一个是空腔耦合镜，其中一个可响应于输入信号可移动地安装在组件上。

4. 发明申请

US20110214479A1 Method and apparatus for the photo-acoustic identification and quantification of analyte species in a gaseous or liquid medium 有权
标题翻译：在气体或液体介质中进行光声识别和分析物质定量的方法和装置
公开(公告)号：US20110214479A1
公开(公告)日：2011-09-08
申请号：US12660614
申请日：2010-03-02
申请人： Alexander Kachanov , Serguei Koulikov
发明人： Alexander Kachanov , Serguei Koulikov
IPC分类号： G01N21/00
CPC分类号： G01N21/1702 , G01N21/39 , G01N2021/1704
摘要： A method and apparatus for the photo-acoustic identification and quantification of one or more analyte species present in a gaseous or liquid medium in low concentration utilizing a laser and a resonant optical cavity containing the medium and having within the cavity at least two partially transparent mirrors, one of which is a cavity coupling mirror and one of which is moveably mounted on an assembly responsive to an input signal.
摘要翻译：一种用于利用激光器和含有介质的共振光学腔室在低浓度下存在于气体或液体介质中的一种或多种分析物质进行光声识别和定量的方法和装置，并且在空腔内具有至少两个部分透明的反射镜，其中一个是空腔耦合镜，其中一个可响应于输入信号可移动地安装在组件上。

5. 发明授权

US08327686B2 Method and apparatus for the photo-acoustic identification and quantification of analyte species in a gaseous or liquid medium 有权
标题翻译：在气体或液体介质中进行光声识别和分析物质定量的方法和装置
公开(公告)号：US08327686B2
公开(公告)日：2012-12-11
申请号：US12660614
申请日：2010-03-02
申请人： Alexander Kachanov , Serguei Koulikov
发明人： Alexander Kachanov , Serguei Koulikov
IPC分类号： G01N21/00
CPC分类号： G01N21/1702 , G01N21/39 , G01N2021/1704
摘要： A method and apparatus for the photo-acoustic identification and quantification of one or more analyte species present in a gaseous or liquid medium in low concentration utilizing a laser and a resonant optical cavity containing the medium and having within the cavity at least two partially transparent mirrors, one of which is a cavity coupling mirror and one of which is moveably mounted on an assembly responsive to an input signal.
摘要翻译：一种用于利用激光器和含有介质的共振光学腔室在低浓度下存在于气体或液体介质中的一种或多种分析物质进行光声识别和定量的方法和装置，并且在空腔内具有至少两个部分透明的反射镜，其中一个是空腔耦合镜，其中一个可响应于输入信号可移动地安装在组件上。

6. 发明申请

US20150276590A1 CAVITY ENHANCED LASER BASED ISOTOPIC GAS ANALYZER 有权
标题翻译： CAVITY增强型激光基于同位素气体分析仪
公开(公告)号：US20150276590A1
公开(公告)日：2015-10-01
申请号：US14734895
申请日：2015-06-09
申请人： Serguei Koulikov , Alexander Kachanov
发明人： Serguei Koulikov , Alexander Kachanov
IPC分类号： G01N21/39 , G01N21/59
CPC分类号： G01N21/39 , G01J3/4338 , G01N21/1702 , G01N21/59 , G01N21/61 , G01N29/2425 , G01N2021/1704 , G01N2201/023 , G01N2201/06113 , G01N2291/021
摘要： Systems and methods for measuring the isotope ratio of one or more trace gases and/or components of gas mixtures such as different gas species present in a gas mixture. The system includes a resonant optical cavity having two or more mirrors and containing a gas, the cavity having a free spectral range that equals the difference between frequencies of two measured absorption lines of different gas species in the gas, or of two different isotopes, divided onto an integer number. The system also includes a continuous-wave tunable laser optically coupled with the resonant optical cavity, and a detector system for measuring an absorption of laser light by the gas in the cavity. The detector system includes one of a photo-detector configured to measure an intensity of the intra-cavity light or both a photo-acoustic sensor configured to measure photo-acoustic waves generated in the cavity and a photo-detector configured to measure an intensity of the intra-cavity light.
摘要翻译：用于测量气体混合物中存在的气体混合物（例如不同气体物质）的一种或多种痕量气体和/或组分的同位素比的系统和方法。该系统包括具有两个或更多个反射镜并且包含气体的谐振光学腔，空腔具有等于气体中不同气体种类或两个不同同位素的两个测量的吸收线的频率之间的差的自由光谱范围到一个整数。该系统还包括与谐振光腔光学耦合的连续波可调谐激光器，以及用于测量腔内的气体对激光的吸收的检测器系统。检测器系统包括被配置为测量腔内光强度或被配置为测量在空腔中产生的光声波的光声传感器的光检测器和被配置为测量腔内光的强度的光检测器腔内光。

7. 发明申请

US20140192347A1 CAVITY ENHANCED LASER BASED ISOTOPIC GAS ANALYZER 审中-公开
标题翻译： CAVITY增强型激光基于同位素气体分析仪
公开(公告)号：US20140192347A1
公开(公告)日：2014-07-10
申请号：US14156842
申请日：2014-01-16
申请人： Serguei Koulikov , Alexander Kachanov
发明人： Serguei Koulikov , Alexander Kachanov
IPC分类号： G01N21/61
CPC分类号： G01N21/39 , G01J3/4338 , G01N21/1702 , G01N21/59 , G01N21/61 , G01N29/2425 , G01N2021/1704 , G01N2201/023 , G01N2201/06113 , G01N2291/021
摘要： Systems and methods for measuring the isotope ratio of one or more trace gases and/or components of gas mixtures such as different gas species present in a gas mixture. The system includes a resonant optical cavity having two or more mirrors and containing a gas, the cavity having a free spectral range that equals the difference between frequencies of two measured absorption lines of different gas species in the gas, or of two different isotopes, divided onto an integer number. The system also includes a continuous-wave tunable laser optically coupled with the resonant optical cavity, and a detector system for measuring an absorption of laser light by the gas in the cavity. The detector system includes one of a photo-detector configured to measure an intensity of the intra-cavity light or both a photo-acoustic sensor configured to measure photo-acoustic waves generated in the cavity and a photo-detector configured to measure an intensity of the intra-cavity light.
摘要翻译：用于测量气体混合物中存在的气体混合物（例如不同气体物质）的一种或多种痕量气体和/或组分的同位素比的系统和方法。该系统包括具有两个或更多个反射镜并且包含气体的谐振光学腔，空腔具有等于气体中不同气体种类或两个不同同位素的两个测量的吸收线的频率之间的差的自由光谱范围到一个整数。该系统还包括与谐振光腔光学耦合的连续波可调谐激光器，以及用于测量腔内的气体对激光的吸收的检测器系统。检测器系统包括被配置为测量腔内光强度或被配置为测量在空腔中产生的光声波的光声传感器的光检测器和被配置为测量腔内光的强度的光检测器腔内光。

8. 发明申请

US20110214480A1 METHOD AND APPARATUS FOR THE PHOTO-ACOUSTIC IDENTIFICATION AND QUANTIFICATION OF ANALYTE SPECIES IN A GASEOUS OR LIQUID MEDIUM 有权
公开(公告)号：US20110214480A1
公开(公告)日：2011-09-08
申请号：US13105779
申请日：2011-05-11
申请人： Alexander Kachanov , Serguei Koulikov
发明人： Alexander Kachanov , Serguei Koulikov
IPC分类号： G01N21/00
CPC分类号： G01N21/1702 , G01N21/39 , G01N2021/1704
摘要： A method and apparatus for the photo-acoustic identification and quantification of one or more analyte species present in a gaseous or liquid medium in low concentration utilizing a laser and a resonant optical cavity containing the medium and having within the cavity at least two partially transparent mirrors, one of which is a cavity coupling mirror and one of which is moveably mounted on an assembly responsive to an input signal.

9. 发明授权

US09678003B2 Cavity enhanced laser based isotopic gas analyzer 有权
公开(公告)号：US09678003B2
公开(公告)日：2017-06-13
申请号：US14156842
申请日：2014-01-16
申请人： Serguei Koulikov , Alexander Kachanov
发明人： Serguei Koulikov , Alexander Kachanov
IPC分类号： G01N21/00 , G01N21/39 , G01N21/17 , G01J3/433 , G01N29/24 , G01N21/61 , G01N21/59
CPC分类号： G01N21/39 , G01J3/4338 , G01N21/1702 , G01N21/59 , G01N21/61 , G01N29/2425 , G01N2021/1704 , G01N2201/023 , G01N2201/06113 , G01N2291/021
摘要： Systems and methods for measuring the isotope ratio of one or more trace gases and/or components of gas mixtures such as different gas species present in a gas mixture. The system includes a resonant optical cavity having two or more mirrors and containing a gas, the cavity having a free spectral range that equals the difference between frequencies of two measured absorption lines of different gas species in the gas, or of two different isotopes, divided onto an integer number. The system also includes a continuous-wave tunable laser optically coupled with the resonant optical cavity, and a detector system for measuring an absorption of laser light by the gas in the cavity. The detector system includes one of a photo-detector configured to measure an intensity of the intra-cavity light or both a photo-acoustic sensor configured to measure photo-acoustic waves generated in the cavity and a photo-detector configured to measure an intensity of the intra-cavity light.

10. 发明授权

US08379206B2 Method and apparatus for the photo-acoustic identification and quantification of analyte species in a gaseous or liquid medium 有权
标题翻译：在气体或液体介质中进行光声识别和分析物质定量的方法和装置
公开(公告)号：US08379206B2
公开(公告)日：2013-02-19
申请号：US13105779
申请日：2011-05-11
申请人： Alexander Kachanov , Serguei Koulikov
发明人： Alexander Kachanov , Serguei Koulikov
IPC分类号： G01N21/00
CPC分类号： G01N21/1702 , G01N21/39 , G01N2021/1704
摘要： A method and apparatus for the photo-acoustic identification and quantification of one or more analyte species present in a gaseous or liquid medium in low concentration utilizing a laser and a resonant optical cavity containing the medium and having within the cavity at least two partially transparent mirrors, one of which is a cavity coupling mirror and one of which is moveably mounted on an assembly responsive to an input signal.
摘要翻译：一种用于利用激光器和含有介质的共振光学腔室在低浓度下存在于气体或液体介质中的一种或多种分析物质进行光声识别和定量的方法和装置，并且在空腔内具有至少两个部分透明的反射镜，其中一个是空腔耦合镜，其中一个可响应于输入信号可移动地安装在组件上。

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