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1. 发明授权

US06959024B2 Laser Tuning by spectrally dependent spatial filtering 有权
标题翻译：激光通过光谱依赖空间滤波进行调谐
公开(公告)号：US06959024B2
公开(公告)日：2005-10-25
申请号：US10308541
申请日：2002-12-02
申请人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David M. Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris W. Rella , Bruce A. Richman , Serguei Koulikov
发明人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David M. Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris W. Rella , Bruce A. Richman , Serguei Koulikov
IPC分类号： H01S5/065 , H01S3/106 , H01S5/10 , H01S5/14 , H01S3/10
CPC分类号： H01S5/141 , H01S3/1068 , H01S5/101 , H01S5/1085 , H01S5/142
摘要： A laser tuning mechanism which embodies “spectrally dependent spatial filtering” (SDSF) and contemplates two key elements of the tuning mechanism. The first element of the SDSF tuning mechanism is a spectrally dependent beam distortion (i.e. alteration of the amplitude and/or phase profile of the beam) provided by an SDSF tuning element in a laser cavity. The second element of the SDSF tuning mechanism is an intracavity spatial filter which makes the round trip cavity loss a sensitive function of both beam distortion and cavity alignment. Such a laser can be aligned so that a specific beam distortion, which is provided by the SDSF tuning element at a tunable wavelength, is required to obtain minimum round trip cavity loss, thereby providing tunable laser emission. A preferred embodiment of the SDSF tuning mechanism is an external cavity semiconductor laser having a zeroth order acousto-optic tuning element.
摘要翻译：激光调谐机制体现了“光谱依赖空间滤波”（SDSF），并考虑了调谐机制的两个关键要素。 SDSF调谐机构的第一要素是由激光腔中的SDSF调谐元件提供的频谱依赖的光束失真（即光束的振幅和/或相位分布的改变）。 SDSF调谐机构的第二个元素是腔内空间滤波器，其使得往返腔体损耗具有波束失真和腔体对准的敏感功能。这样的激光器可以对齐，使得由SDSF调谐元件提供的可调谐波长的特定光束失真是需要的，以获得最小的往返腔损耗，从而提供可调谐的激光发射。 SDSF调谐机构的优选实施例是具有零级声光调谐元件的外腔半导体激光器。

2. 发明授权

US06970484B2 Laser tuning by spectrally dependent spatial filtering 失效
公开(公告)号：US06970484B2
公开(公告)日：2005-11-29
申请号：US11106000
申请日：2005-04-13
申请人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David M. Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris W. Rella , Bruce A. Richman
发明人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David M. Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris W. Rella , Bruce A. Richman
IPC分类号： H01S5/065 , H01S3/106 , H01S5/10 , H01S5/14 , H01S3/10
CPC分类号： H01S5/141 , H01S3/1068 , H01S5/101 , H01S5/1085 , H01S5/142
摘要： A tunable laser and laser tuning method, based on the interaction of a spectrally dependent beam distortion and a spatial filter within a laser cavity. One embodiment of this laser is an external cavity semiconductor laser in which broad tunability is obtained by the insertion of an acousto-optic tunable filter (AOTF) into the laser cavity such that the intra-cavity laser beam passes through the AOTF in zeroth order.

3. 发明申请

US20050243884A1 Laser tuning by spectrally dependent spatial filtering 审中-公开
标题翻译：通过光谱依赖空间滤波进行激光调谐
公开(公告)号：US20050243884A1
公开(公告)日：2005-11-03
申请号：US11176059
申请日：2005-07-07
申请人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris Rella , Bruce Richman , Serguei Koulikov
发明人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris Rella , Bruce Richman , Serguei Koulikov
IPC分类号： H01S5/065 , H01S3/106 , H01S5/10 , H01S5/14 , H01S3/093
CPC分类号： H01S5/141 , H01S3/1068 , H01S5/101 , H01S5/1085 , H01S5/142
摘要： A laser tuning mechanism which embodies “spectrally dependent spatial filtering” (SDSF) and contemplates two key elements of the tuning mechanism. The first element of the SDSF tuning mechanism is a spectrally dependent beam distortion (i.e. alteration of the amplitude and/or phase profile of the beam) provided by an SDSF tuning element in a laser cavity. The second element of the SDSF tuning mechanism is an intracavity spatial filter which makes the round trip cavity loss a sensitive function of both beam distortion and cavity alignment. Such a laser can be aligned so that a specific beam distortion, which is provided by the SDSF tuning element at a tunable wavelength, is required to obtain minimum round trip cavity loss, thereby providing tunable laser emission. A preferred embodiment of the SDSF tuning mechanism is an external cavity semiconductor laser having a zeroth order acousto-optic tuning element.
摘要翻译：激光调谐机制体现了“光谱依赖空间滤波”（SDSF），并考虑了调谐机制的两个关键要素。 SDSF调谐机构的第一要素是由激光腔中的SDSF调谐元件提供的频谱依赖的光束失真（即光束的振幅和/或相位分布的改变）。 SDSF调谐机构的第二个元素是腔内空间滤波器，其使得往返腔体损耗具有波束失真和腔体对准的敏感功能。这样的激光器可以对齐，使得由SDSF调谐元件提供的可调谐波长的特定光束失真是需要的，以获得最小的往返腔损耗，从而提供可调谐的激光发射。 SDSF调谐机构的优选实施例是具有零级声光调谐元件的外腔半导体激光器。

4. 发明申请

US20050175045A1 Laser tuning by spectrally dependent spatial filtering 失效
标题翻译：通过光谱依赖空间滤波进行激光调谐
公开(公告)号：US20050175045A1
公开(公告)日：2005-08-11
申请号：US11106000
申请日：2005-04-13
申请人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris Rella , Bruce Richman
发明人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris Rella , Bruce Richman
IPC分类号： H01S5/065 , H01S3/106 , H01S5/10 , H01S5/14 , H01S3/10
CPC分类号： H01S5/141 , H01S3/1068 , H01S5/101 , H01S5/1085 , H01S5/142
摘要： A tunable laser and laser tuning method, based on the interaction of a spectrally dependent beam distortion and a spatial filter within a laser cavity. One embodiment of this laser is an external cavity semiconductor laser in which broad tunability is obtained by the insertion of an acousto-optic tunable filter (AOTF) into the laser cavity such that the intra-cavity laser beam passes through the AOTF in zeroth order.
摘要翻译：基于频谱依赖的波束失真和激光腔内的空间滤波器的相互作用的可调激光和激光调谐方法。该激光器的一个实施例是外腔半导体激光器，其中通过将声光可调滤波器（AOTF）插入到激光腔中获得宽可调性，使得腔内激光束以零级顺序通过AOTF。

5. 发明申请

US20060109873A1 External cavity laser having improved single mode operation 审中-公开
标题翻译：外腔激光器具有改进的单模操作
公开(公告)号：US20060109873A1
公开(公告)日：2006-05-25
申请号：US11226775
申请日：2005-09-13
申请人： Eric Crosson , Serguei Koulikov , Grzegorz Pakulski , Barbara Paldus , Chris Rella
发明人： Eric Crosson , Serguei Koulikov , Grzegorz Pakulski , Barbara Paldus , Chris Rella
IPC分类号： H01S3/098
CPC分类号： H01S5/141 , G01N21/39 , H01S5/06804 , H01S5/0683 , H01S5/0687
摘要： Stable single mode operation of an external cavity semiconductor laser is obtained by a laser control method that monitors at least one optical beam which is generated by reflection from a wavelength selective element within the laser cavity. The method of the present invention provides stable single mode operation and significantly decreases the mode hop rate, because the signal obtained by reflection from a wavelength selective element within the laser cavity provides a clear indication of an impending mode hop.
摘要翻译：通过激光控制方法获得外腔半导体激光器的稳定单模操作，所述激光控制方法监视由激光腔内的波长选择元件反射而产生的至少一个光束。本发明的方法提供稳定的单模操作并显着降低模式跳频，因为通过来自激光腔内的波长选择元件的反射获得的信号提供即将发生的模式跳跃的清楚指示。

6. 发明授权

US07265842B2 Method for detecting a gaseous analyte present as a minor constituent in an admixture 有权
标题翻译：用于检测在混合物中作为次要成分存在的气态分析物的方法
公开(公告)号：US07265842B2
公开(公告)日：2007-09-04
申请号：US10966314
申请日：2004-10-14
申请人： Barbara Paldus , Bruce Richman , Alexander Kachanov , Eric Crosson
发明人： Barbara Paldus , Bruce Richman , Alexander Kachanov , Eric Crosson
IPC分类号： G01J5/02 , G01J1/42 , G01N21/00
CPC分类号： G01N21/39
摘要： A gaseous target analyte present as a minor constituent in an admixture with at least one other gaseous species can be detected using a cavity enhanced optical spectrometer by a process comprising the steps of: i) identifying a plurality of strong spectral absorption peaks of the target analyte which are present within the scanning range of the spectrometer, ii) determining for the identified peaks the pressure region above which the peak width increases substantially with increasing pressure and below which the peak width is substantially independent of pressure, iii) determining which of the peaks identified in step i) are, within the pressure region determined in step ii), free from spectral interference by any of the other components of the admixture. iv) measuring the spectrum of the admixture at the pressure region identified in step ii).
摘要翻译：可以使用空腔增强型光谱仪通过包括以下步骤的方法检测与至少一种其它气态物质混合物中作为次要成分存在的气态目标分析物：i）鉴定目标分析物的多个强光谱吸收峰它们存在于光谱仪的扫描范围内，ii）确定所识别的峰的压力区域，在该压力区域上，峰宽度随着压力的增加而基本上增加并且低于该压力峰值宽度基本上与压力无关，iii）确定哪个峰值在步骤i）中确定的压力区域在步骤ii）中确定的压力区域内，不受混合物中任何其它组分的光谱干扰。 iv）测量在步骤ii）中鉴定的压力区域上的混合物的光谱。

7. 发明申请

US20060084180A1 Method for increasing the dynamic range of a cavity enhanced optical spectrometer 审中-公开
标题翻译：增加腔增强型光谱仪的动态范围的方法
公开(公告)号：US20060084180A1
公开(公告)日：2006-04-20
申请号：US10966315
申请日：2004-10-14
申请人： Barbara Paldus , Bruce Richman , Alexander Kachanov , Eric Crosson
发明人： Barbara Paldus , Bruce Richman , Alexander Kachanov , Eric Crosson
IPC分类号： G01N24/00
CPC分类号： G01N21/3504 , G01N21/39
摘要： Target analytes present in low concentration as components in a gaseous admixture can be detected using a cavity enhanced optical spectrometer by a process comprising: i) identifying from the spectrum of the pure target analyte a series of absorption peaks free from spectral interference by peaks of any additional gaseous species which are present, the first member of the series being the strongest spectral absorption peak of said target analyte ii) identifying one or more successive peaks of the series which have an absorption that is weaker than the immediately previously identified peak of the series, iii) performing a spectral scan at the wavelengths of the peaks identified in steps i) and ii), and iv) calculating the concentration of the target analyte from the spectral scan of the admixture performed at the wavelength determined in step iii).
摘要翻译：以气体混合物中的组分存在的目标分析物可以使用空腔增强型光谱仪通过以下方法来检测，所述方法包括：i）从纯的目标分析物的光谱中鉴定出一系列没有光谱干扰的吸收峰，存在的另外的气体物质，该系列的第一个成员是所述目标分析物的最强光谱吸收峰。ii）识别该系列的一个或多个连续的峰，其吸收比紧接着之前鉴定的该序列峰，iii）在步骤i）和ii）中确定的峰的波长处执行光谱扫描，以及iv）从在步骤iii）中确定的波长执行的混合物的光谱扫描计算目标分析物的浓度。

8. 发明申请

US20100122564A1 Liquid sample evaporator for vapor analysis 有权
标题翻译：用于蒸汽分析的液体样品蒸发器
公开(公告)号：US20100122564A1
公开(公告)日：2010-05-20
申请号：US12313375
申请日：2008-11-18
申请人： Eric Crosson , Bruce A. Richman , Bruce H. Vaughn , James W. C. White
发明人： Eric Crosson , Bruce A. Richman , Bruce H. Vaughn , James W. C. White
IPC分类号： G01D18/00
CPC分类号： B01B1/005 , G01N21/276 , G01N2001/2893
摘要： Preparation methods for introducing liquid samples to gas analysis instruments include 1) complete evaporation of a liquid sample in a sample chamber, and 2) allowing the sample vapor in the sample chamber to equilibrate for a predetermined time. An inert carrier gas (e.g., dry nitrogen or zero air) is also admitted to the sample chamber. After equilibration, the sample vapor is admitted as a conditioned sample to an analysis instrument. Preferably, the predetermined equilibration time is sufficiently long that the sample vapor in the sample chamber becomes substantially homogeneous with respect to both concentration and isotopic ratio. Vapor derived from a liquid calibration standard in this manner can be employed as an accurate gas-phase calibration reference.
摘要翻译：将液体样品引入气体分析仪器的制备方法包括：1）在样品室中完全蒸发液体样品，以及2）允许样品室中的样品蒸气平衡预定时间。惰性载气（例如干燥氮气或零空气）也被允许进入样品室。平衡后，将样品蒸气作为条件样品进入分析仪器。优选地，预定的平衡时间足够长，使得样品室中的样品蒸气相对于浓度和同位素比都变得基本均匀。以这种方式从液体校准标准得到的蒸气可用作准确的气相校准参考。

9. 发明授权

US07106763B2 Wavelength control for cavity ringdown spectrometer 有权
标题翻译：腔体振铃光谱仪的波长控制
公开(公告)号：US07106763B2
公开(公告)日：2006-09-12
申请号：US10803827
申请日：2004-03-18
申请人： Sze Tan , Bernard Fidric , Barbara Paldus , Eric Crosson
发明人： Sze Tan , Bernard Fidric , Barbara Paldus , Eric Crosson
IPC分类号： H01S3/10
CPC分类号： G01N21/39 , G01N2021/391 , G01N2021/399
摘要： A cavity ring-down spectrometer includes: a) multiple detectors for monitoring the intensity of the radiation emitted from the cavity and the wavelength of the radiation injected into the cavity; b) controllers which turn off the radiation into the cavity and precisely adjust the temperature of, and current to, the laser gain medium; and c) means for adjusting the beam path length of the optical cavit to bring the cavity into resonance with the injected radiation. Additionally, disclosed is a method for using the spectrometer to detect a target analyte.
摘要翻译：空腔衰减光谱仪包括：a）多个检测器，用于监测从空腔发射的辐射的强度和注入空腔的辐射的波长; b）控制器，其将辐射截止到腔中并精确地调节激光增益介质的温度和电流; 以及c）用于调节光学空穴的光束路径长度以使空腔与所注入的辐射共振的装置。此外，公开了使用该光谱仪检测目标分析物的方法。

10. 发明申请

US20060082778A1 Method for increasng the dynamic range of a cavity enhanced optical spectrometer 有权
标题翻译：增加腔增强光谱仪的动态范围的方法
公开(公告)号：US20060082778A1
公开(公告)日：2006-04-20
申请号：US10966314
申请日：2004-10-14
申请人： Barbara Paldus , Bruce Richman , Alexander Kachanov , Eric Crosson
发明人： Barbara Paldus , Bruce Richman , Alexander Kachanov , Eric Crosson
IPC分类号： G01N21/00
CPC分类号： G01N21/39
摘要： A gaseous target analyte present as a minor constituent in an admixture with at least one other gaseous species can be detected using a cavity enhanced optical spectrometer by a process comprising the steps of: i) identifying a plurality of strong spectral absorption peaks of the target analyte which are present within the scanning range of the spectrometer, ii) determining for the identified peaks the pressure region above which the peak width increases substantially with increasing pressure and below which the peak width is substantially independent of pressure, iii) determining which of the peaks identified in step i) are, within the pressure region determined in step ii), free from spectral interference by any of the other components of the admixture. iv) measuring the spectrum of the admixture at the pressure region identified in step ii).
摘要翻译：可以使用空腔增强型光谱仪通过包括以下步骤的方法检测与至少一种其它气态物质混合物中作为次要成分存在的气态目标分析物：i）鉴定目标分析物的多个强光谱吸收峰它们存在于光谱仪的扫描范围内，ii）确定所识别的峰的压力区域，在该压力区域上，峰宽度随着压力的增加而基本上增加并且低于该压力峰值宽度基本上与压力无关，iii）确定哪个峰值在步骤i）中确定的压力区域在步骤ii）中确定的压力区域内，不受混合物中任何其它组分的光谱干扰。 iv）测量在步骤ii）中鉴定的压力区域上的混合物的光谱。

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