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1. 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.

2. 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。

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. 发明申请

US20050094158A1 Flow cell for optical detection having reduced sensitivity to refractive index variation 有权
$Flow cell for optical detection having reduced sensitivity to refractive index variation$
标题翻译：用于光学检测的流动池具有降低的对折射率变化的敏感性
公开(公告)号：US20050094158A1
公开(公告)日：2005-05-05
申请号：US10700947
申请日：2003-10-31
申请人： Barbara Paldus , Alexander Katchanov , Robert Lodenkamper
发明人： Barbara Paldus , Alexander Katchanov , Robert Lodenkamper
IPC分类号： G01N21/39 , G01B9/02
CPC分类号： G01N21/39
摘要： An apparatus for cavity enhanced optical detection comprising: a) a source of optical radiation b) a resonant optical cavity which provides a round trip path for said optical radiation the cavity comprising: i) a plurality of mirrors, the first mirror being an input mirror which receives the optical radiation and inputs it into the cavity; ii) a flow cell positioned within said cavity, said flow cell comprising at least a first analysis channel which accommodates a flow of analyte fluid there through, iii) a second mirror, which second mirror receives the radiation from the optical source after its passage through both said input mirror and said analysis channel and reflects said received radiation. The resonant optical cavity provides a round trip path for analyte fluid having at least two different refractive index values and the location of the point at which said reflected radiation impinges on said input mirror remains substantially the same as the point from which said first mirror inputs said radiation into said cavity notwithstanding changes in the refractive index of the analyte fluid or the wavelength of the optical radiation.
摘要翻译：一种用于空腔增强光学检测的装置，包括：a）光辐射源; b）谐振光学腔，其为所述光辐射提供所述光辐射的往返路径，所述光腔包括：i）多个反射镜，所述第一反射镜是输入镜其接收光辐射并将其输入到腔中; ii）位于所述空腔内的流动池，所述流动池包括至少第一分析通道，其容纳其中通过的分析物流体流，iii）第二反射镜，所述第二反射镜在其通过之后接收来自光源的辐射所述输入反射镜和所述分析通道都反映所述接收的辐射。谐振光学腔提供具有至少两个不同折射率值的分析物流体的往返路径，并且所述反射辐射照射在所述输入反射镜上的点的位置保持与所述第一反射镜从其输入所述输入反射镜的点大致相同尽管分析物流体的折射率或光辐射的波长发生变化，但是辐射进入所述腔。

7. 发明申请

US20060056465A1 Laser with reflective etalon tuning element 审中-公开
标题翻译：具有反光标准杆调谐元件的激光
公开(公告)号：US20060056465A1
公开(公告)日：2006-03-16
申请号：US10938270
申请日：2004-09-10
申请人： Jinchun Xie , Alexandre Katchanov , Barbara Paldus
发明人： Jinchun Xie , Alexandre Katchanov , Barbara Paldus
IPC分类号： H01S3/10
CPC分类号： H01S3/08059 , H01S3/10 , H01S3/105 , H01S3/1062 , H01S5/141
摘要： A tunable laser and laser tuning method based on the use of a tunable etalon in reflection as a mirror within a laser cavity. The laser emission wavelength is not necessarily at a wavelength of peak etalon reflectivity. A preferred embodiment makes use of a microelectromechanical etalon to tune an external cavity semiconductor laser.
摘要翻译：基于在激光腔内作为反射镜使用可调标准具的可调谐激光和激光调谐方法。激光发射波长不一定在标准具有峰值反射率的波长。优选的实施例利用微机电标准具来调谐外腔半导体激光器。

8. 发明授权

US06967976B2 Laser with reflective etalon tuning element 失效
标题翻译：具有反光标准杆调谐元件的激光
公开(公告)号：US06967976B2
公开(公告)日：2005-11-22
申请号：US10909989
申请日：2004-08-03
申请人： Jinchun Xie , Alexandre Katchanov , Barbara Paldus
发明人： Jinchun Xie , Alexandre Katchanov , Barbara Paldus
IPC分类号： G02F1/35 , G02F1/37 , H01S5/14 , H01S3/10 , H01S3/08
CPC分类号： G02F1/37 , G02F1/3501 , G02F1/3544 , G02F2001/3503 , G02F2201/17 , H01S5/141 , H01S5/142
摘要： A tunable laser and laser tuning method based on the use of a tunable etalon in reflection as a mirror within a laser cavity and forming an end reflective surface thereof. The laser emission wavelength is not necessarily at a wavelength of peak etalon reflectivity. A preferred embodiment makes use of a microelectromechanical etalon to tune an external cavity semiconductor.
摘要翻译：一种可调谐激光和激光调谐方法，其基于在激光腔内的反射镜中使用可调标准具并形成其端部反射表面。激光发射波长不一定在标准具有峰值反射率的波长。优选的实施例利用微机电标准具来调谐外腔半导体。

9. 发明申请

US20050008045A1 Laser with reflective etalon tuning element 失效
公开(公告)号：US20050008045A1
公开(公告)日：2005-01-13
申请号：US10909989
申请日：2004-08-03
申请人： Jinchun Xie , Alexandre Katchanov , Barbara Paldus
发明人： Jinchun Xie , Alexandre Katchanov , Barbara Paldus
IPC分类号： G02F1/35 , G02F1/37 , H01S5/14 , H01S3/10 , H01S3/08
CPC分类号： G02F1/37 , G02F1/3501 , G02F1/3544 , G02F2001/3503 , G02F2201/17 , H01S5/141 , H01S5/142
摘要： A tunable laser and laser tuning method based on the use of a tunable etalon in reflection as a mirror within a laser cavity and forming an end reflective surface thereof. The laser emission wavelength is not necessarily at a wavelength of peak etalon reflectivity. A preferred embodiment makes use of a microelectromechanical etalon to tune an external cavity semiconductor.

10. 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。

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