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1. 发明申请

US20090310627A1 LASER FOR PROVIDING PULSED LIGHT AND REFLECTOMETRIC APPARATUS INCORPORATING SUCH A LASER 有权
标题翻译：提供脉冲光的激光和包含这种激光的反射装置
公开(公告)号：US20090310627A1
公开(公告)日：2009-12-17
申请号：US12373986
申请日：2007-07-18
申请人： Hongxin Chen , Gregory Walter Schinn
发明人： Hongxin Chen , Gregory Walter Schinn
IPC分类号： H01S3/30 , G01N21/00
CPC分类号： H01S5/146 , H01S5/06216 , H01S5/1071 , H01S5/141 , H01S5/50
摘要： A laser for generating laser light pulses comprises a cavity containing an active optical gain medium (102) and a spectral filtering device (104), a delay device (110) for delaying light by a predetermined delay time (Δt), means (106) for extracting a portion of laser light from the cavity, launching said portion into said delay means (110) and returning the delayed portion to the optical gain medium (102), control means (116) operable to activate the gain medium for a first time period (C1) to produce a first laser light pulse (LP1) having a duration that is less than the delay time (Δt), and activate the gain medium for a second time period (C2) while a said delayed portion of the first light pulse that has been delayed by the delay means (UO) is traversing the gain medium (102), thereby to produce a second laser pulse (LP2) having a shorter duration and faster risetime than the first laser light pulse (LP1), and output means (108) for outputting the second laser light pulse (LP2).
摘要翻译：一种用于产生激光脉冲的激光器包括：包含有源光学增益介质（102）和光谱滤波装置（104）的空腔;延迟装置（110），用于将光延迟预定延迟时间（Deltat）;装置（106）用于从所述空腔提取一部分激光，将所述部分启动到所述延迟装置（110）中并将延迟部分返回到光学增益介质（102），控制装置（116）可操作以第一次激活增益介质周期（C1）以产生具有小于延迟时间（Deltat）的持续时间的第一激光脉冲（LP1），并且在第一时间段（C2）的所述延迟部分激活第二时间段（C2）的增益介质由延迟装置（UO）延迟的脉冲正在越过增益介质（102），从而产生具有比第一激光脉冲（LP1）更短的持续时间和更快的上升时间的第二激光脉冲（LP2），并输出用于输出第二激光脉冲的装置（108）（LP2）。

2. 发明授权

US07957436B2 Laser for providing pulsed light and reflectometric apparatus incorporating such a laser 有权
标题翻译：用于提供脉冲光的激光器和结合这样的激光器的反射测量装置
公开(公告)号：US07957436B2
公开(公告)日：2011-06-07
申请号：US12373986
申请日：2007-07-18
申请人： Hongxin Chen , Gregory Walter Schinn
发明人： Hongxin Chen , Gregory Walter Schinn
IPC分类号： H01S3/10
CPC分类号： H01S5/146 , H01S5/06216 , H01S5/1071 , H01S5/141 , H01S5/50
摘要： A laser for generating laser light pulses comprises a cavity containing an active optical gain medium (102) and a spectral filtering device (104), a delay device (110) for delaying light by a predetermined delay time (Δt), means (106) for extracting a portion of laser light from the cavity, launching said portion into said delay means (110) and returning the delayed portion to the optical gain medium (102), control means (116) operable to activate the gain medium for a first time period (C1) to produce a first laser light pulse (LP1) having a duration that is less than the delay time (Δt), and activate the gain medium for a second time period (C2) while a said delayed portion of the first light pulse that has been delayed by the delay means (UO) is traversing the gain medium (102), thereby to produce a second laser pulse (LP2) having a shorter duration and faster risetime than the first laser light pulse (LP1), and output means (108) for outputting the second laser light pulse (LP2).
摘要翻译：一种用于产生激光脉冲的激光器包括一个包含有源光学增益介质（102）和一个光谱滤波装置（104）的腔体，一个用于将光延迟预定延迟时间（＆Dgr; t）的延迟装置（110） 106），用于从所述空腔提取一部分激光，将所述部分启动到所述延迟装置（110）中并将延迟部分返回到光学增益介质（102），控制装置（116）可操作以激活用于第一时间段（C1）以产生具有小于延迟时间（＆Dgr; t）的持续时间的第一激光脉冲（LP1），并且在第二时间段（C2）激活增益介质，同时所述延迟部分已经被延迟装置延迟的第一光脉冲（UO）正在越过增益介质（102），从而产生具有比第一激光脉冲（LP1）更短的持续时间和更快的上升时间的第二激光脉冲（LP2））和用于输出第二激光脉冲的输出装置（108）（LP2）。

3. 发明授权

US07116848B2 Optical spectrum analyzer using a diffraction grating and multi-pass optics 有权
$Optical spectrum analyzer using a diffraction grating and multi-pass optics$
标题翻译：光谱分析仪采用衍射光栅和多通道光学
公开(公告)号：US07116848B2
公开(公告)日：2006-10-03
申请号：US10986833
申请日：2004-11-15
申请人： Gang He , Daniel Gariépy , Gregory Walter Schinn
发明人： Gang He , Daniel Gariépy , Gregory Walter Schinn
IPC分类号： G02B6/00 , G02B6/34 , G02B5/30 , G02B27/28 , G01J3/28
CPC分类号： G02B5/3025
摘要： A polarization independent optical spectrum analyzer comprises a diffraction grating, input and output slit means and polarization-maintaining multi-pass optics for directing a light beam to and fro across the diffraction grating while maintaining its linear state of polarization. The optical spectrum analyzer further comprises a polarization control unit for decomposing a light beam for analysis into first and second beams having mutually orthogonal states of polarization (SOPs) and then adjusting one or both SOPs so that they are parallel to each other and to one of the dispersion plane of the diffraction grating which is rotated to select different wavelengths of the first and second light beams. The first and second light beams are passed across the diffraction grating repeatedly by multi-pass polarization-maintaining optics and are outputted and detected separately.
摘要翻译：偏振无关光谱分析仪包括衍射光栅，输入和输出狭缝装置和偏振保持多通道光学器件，用于引导光束穿过衍射光栅，同时保持其线性极化状态。光谱分析仪还包括：偏振控制单元，用于将用于分析的光束分解成具有相互正交偏振态（SOP）的第一和第二光束，然后调整一个或两个SOP，使得它们彼此平行并且与衍射光栅的色散平面被旋转以选择第一和第二光束的不同波长。第一和第二光束通过多通道偏振保持光学器件反复穿过衍射光栅，并分别输出和检测。

4. 发明申请

US20090033919A1 Estimating Loss of Mechanical Splices Interconnecting Optical Fibers, and Connector Installation Tool 有权
标题翻译：估计机械接头连接光纤与连接器安装工具的损失
公开(公告)号：US20090033919A1
公开(公告)日：2009-02-05
申请号：US12086626
申请日：2006-12-18
申请人： Gang He , Gregory Walter Schinn
发明人： Gang He , Gregory Walter Schinn
IPC分类号： G01N21/00
CPC分类号： G01M11/33 , G02B6/255
摘要： A method of estimating loss of a splice between first and second optical fibers spliced together by a mechanical splice or a mechanical splice-based connector having a portion through which light leaked from the splice can emerge comprises the steps of launching light into the first fiber, collecting light leaked from the portion using a multiplicity of ports, measuring the power level of the collected light and deriving the insertion loss from the measured power level, a predetermined power level and a collection factor C representing a relationship between measured power level, predetermined power level, power level of light in the first fiber, and power level of light coupled into the second fiber previously obtained for the same or similar connecting device. The ports may be angularly spaced about the axis of the connector or splice. The predetermined power level may be obtained by measuring light emerging from the connector but without the second fiber in position.
摘要翻译：估计通过机械接头或机械接头连接器拼接在一起的第一和第二光纤之间的接头的损耗的方法，该连接器具有从接头泄漏光的部分可以出现的步骤包括将光发射到第一光纤中的步骤，使用多个端口收集从该部分泄漏的光，测量所收集的光的功率电平并从测量的功率电平导出插入损耗，预定功率电平和表示测量功率电平，预定功率之间的关系的采集因子C 第一光纤中的光的功率水平，以及耦合到先前为相同或相似的连接装置获得的第二光纤的光的功率水平。端口可以围绕连接器或接头的轴线成角度地间隔开。可以通过测量从连接器出射的光而不使第二光纤处于适当位置来获得预定的功率水平。

5. 发明授权

US06636306B2 Optical spectrum analyzer 有权
标题翻译：光谱分析仪
公开(公告)号：US06636306B2
公开(公告)日：2003-10-21
申请号：US09753673
申请日：2001-01-04
申请人： Gang He , Daniel Gariépy , Gregory Walter Schinn
发明人： Gang He , Daniel Gariépy , Gregory Walter Schinn
IPC分类号： G01J328
CPC分类号： G01J3/447 , G01J3/12
摘要： An optical spectrum analyzer comprises a diffraction grating (DG), a polarization decomposing unit (PDM) for decomposing the input light beam into first and second light beams having mutually-perpendicular linear states of polarization, and two output ports (FP2/1, FP2/2) each for receiving from the grating, substantially exclusively, a respective one of the polarized light beams (LT, LR) after diffraction by the diffraction grating (DG). Each of the linearly-polarized light beams is directed onto the diffraction grating with its linear state of polarization at any prescribed angle to a corresponding plane of diffraction of the diffraction grating The arrangement is such that the state of polarization of the light beams, at any particular wavelength within an operating band of the analyzer remains substantially unchanged with respect to time, The analyzer also may have a reflector (RAM) for reflecting the light beams leaving the diffraction grating after diffraction a first time so as to return them to the diffraction grating for diffraction a second time.
摘要翻译：光谱分析仪包括衍射光栅（DG），用于将输入光束分解成具有相互垂直的极化状态的第一和第二光束的偏振分解单元（PDM）和两个输出端口（FP2 / 1，FP2 / 2），每个用于在衍射光栅（DG）衍射之后从光栅接收基本上仅相应的一个偏振光束（LT，LR）。每个线性偏振光束以与其衍射光栅的相应衍射平面成任意规定角度的线性极化状态被引导到衍射光栅上。这种布置使得光束的偏振状态分析仪的工作频带内的特定波长相对于时间保持基本不变。分析仪还可以具有用于在衍射之后第一次反射离开衍射光栅的光束的反射器（RAM），以便将它们返回到衍射光栅用于衍射第二次。

6. 发明授权

US06621067B2 Polarization independent photodetector device and method of making same 失效
标题翻译：极化独立光电探测器及其制作方法
公开(公告)号：US06621067B2
公开(公告)日：2003-09-16
申请号：US09796796
申请日：2001-03-02
申请人： Gang He , François Babin , Martin Tremblay , Marc Breton , Steeve Potvin , Gregory Walter Schinn
发明人： Gang He , François Babin , Martin Tremblay , Marc Breton , Steeve Potvin , Gregory Walter Schinn
IPC分类号： G02F101
CPC分类号： H01L31/0203 , G02B6/4204 , G02B6/4292 , H01L31/02325
摘要： A photodetector device comprising a photosensitive detector (12; 96) and one or more interfaces (20′, 20″, 28, 98) between dissimilar media is configured so that a light beam (LB) for detection will pass through the interface(s) along a beam axis that is not normal to the interface(s). The deviation (&thgr;) from the normal will be such that polarization dependent transmission introduced at the interface(s) will compensate for inherent polarization dependency of the detector (12; 96). The deviation may be achieved by inclining the interface(s) relative to a predetermined direction along which the light beam will be incident. Where the photosensitive detector is in a housing (84) with a window (20) through which the light beam enters the housing, the housing can be tilted. In such as case, there are three interfaces, one (28; 98) at the surface of the detector (12; 96), and one at each surface (20′, 20″) of the window (20). Alternatively, the detector surface and/or the window could be tilted. Where a pigtail fiber (116) is permanently attached to the photodetector device to input the light beam through an interposed lens (106), the end of the pigtail fiber may be offset laterally from the lens optical axis (LOA) so that the beam axis deviates from the normal by such an angle that the resulting polarization dependent transmission (PDT) substantially corrects for polarization dependent response (PDR) of the photosensitive detector. An end facet of the pigtail fiber, the lens, and/or the window may be inclined so that they are not perpendicular to the propagation direction of the light beam so as to reduce interference and backreflection effects.
摘要翻译：包括光敏检测器（12; 96）和不同介质之间的一个或多个接口（20'，20“，28,98）的光检测器设备被配置为使得用于检测的光束（LB）将通过接口 s）沿着不垂直于接口的波束轴。与正常的偏差（θ）将使得在界面处引入的偏振相关传输将补偿检测器（12; 96）的固有偏振依赖性。可以通过使界面相对于光束入射的预定方向倾斜来实现偏差。在光敏检测器位于具有窗口（20）的壳体（84）中，光束通过该窗口进入壳体，壳体可以倾斜。在这种情况下，在检测器（12; 96）的表面处有三个界面，一个（28; 98），一个在窗口（20）的每个表面（20'，20“）处。或者，检测器表面和/或窗口可以倾斜。在猪尾纤维（116）永久地附接到光电检测器装置以通过中介透镜（106）输入光束的情况下，猪尾纤维的端部可以从透镜光轴（LOA）侧向偏移，使得光束轴线偏离正常，使得所得到的偏振相关透射（PDT）基本上校正光敏检测器的偏振相关响应（PDR）。引线纤维，透镜和/或窗口的端面可以倾斜，使得它们不垂直于光束的传播方向，以便减少干涉和背反射效应。

7. 发明授权

US07719667B2 Estimating loss of mechanical splices interconnecting optical fibers, and connector installation tool 有权
标题翻译：估计互连光纤机械接头的损耗和连接器安装工具
公开(公告)号：US07719667B2
公开(公告)日：2010-05-18
申请号：US12086626
申请日：2006-12-18
申请人： Gang He , Gregory Walter Schinn
发明人： Gang He , Gregory Walter Schinn
IPC分类号： G01N21/00
CPC分类号： G01M11/33 , G02B6/255
摘要： First and second optical fibers are spliced by a mechanical splice-based connecting device having a portion whereby light leaked from the splice can leave the connecting device. A reference power level (PREF) of light leaked while only the first fiber is inserted into the connecting device, and a measured power level (PM) light leaked while both fibers are inserted are measured. Insertion loss of the splice is derived from the measured power level (PM), the measured reference power level (PREF) and a calibration factor (C) previously obtained by using the same or substantially identical measuring apparatus and connecting device to measure a corresponding calibration input power level (P′IN) and calibration reference power level (P′REF) with only the first fiber inserted, and a calibration measured power level (P′M) and output power level (P′F) of light coupled into a second fiber after the second fiber has been inserted.
摘要翻译：第一和第二光纤通过具有一部分的机械接头连接装置接合，由此从接头泄漏的光可以离开连接装置。测量仅将第一光纤插入连接装置时泄露的光的参考功率电平（PREF）和插入两根光纤时泄露的测量功率电平（PM）光。接头的插入损耗来自测量的功率电平（PM），测量的基准功率电平（PREF）和先前通过使用相同或基本上相同的测量装置和连接装置获得的校准因子（C），以测量相应的校准仅插入第一光纤的输入功率电平（P'IN）和校准参考功率电平（P'REF），以及耦合到一个光纤中的光的校准测量功率电平（P'M）和输出功率电平（P'F）在第二纤维被插入之后的第二纤维。

8. 发明授权

US06819429B2 Multi-pass optical spectrum analyzer having a polarization-dependent tunable filter 失效
标题翻译：具有偏振相关可调滤波器的多通光谱分析仪
公开(公告)号：US06819429B2
公开(公告)日：2004-11-16
申请号：US09827141
申请日：2001-04-06
申请人： Gang He , Daniel Gariépy , Gregory Walter Schinn , Martin Lamonde
发明人： Gang He , Daniel Gariépy , Gregory Walter Schinn , Martin Lamonde
IPC分类号： G01B902
CPC分类号： G02B5/3025
摘要： A polarization independent optical spectrum analyzer comprises an inherently polarization sensitive angle-tuned filter element and polarization-maintaining multi-pass optics for directing a light beam to and fro through the tunable filter element while maintaining its linear state of polarization. The optical spectrum analyzer comprises such a tunable optical filter in combination with a polarization control unit for decomposing a light beam for analysis into first and second beams having mutually orthogonal states of polarization (SOPs) and then adjusting one or both SOPs so that they are parallel to each other and to one of the principal axes of the angle-tuned filter which selects different wavelengths of the first and second light beams. The first and second light beams are passed through the filter repeatedly by multi-pass polarization-maintaining optics.
摘要翻译：偏振无关光谱分析仪包括固有偏振敏感角度调谐滤波器元件和偏振保持多通道光学器件，用于在保持其线性极化状态的同时引导光束通过可调滤波器元件。光谱分析仪包括与偏振控制单元组合的这种可调谐光学滤波器，用于将用于分析的光束分解成具有相互正交的偏振态（SOP）的第一和第二光束，然后调整一个或两个SOP，使得它们是平行的并且与角度调谐滤波器的主轴中的一个相对应，其选择第一和第二光束的不同波长。第一和第二光束通过多通道偏振保持光学器件重复地通过滤光器。

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