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公开(公告)号：US20030173505A1
公开(公告)日：2003-09-18
申请号：US10389123
申请日：2003-03-14
Applicant: AGILITY COMMUNICATIONS, INC.
Inventor： Torsten Wipiejewski
IPC: G01J003/50
CPC classification number: G01J9/02 , G01J2009/0257 , H01S5/0687
Abstract: A multiple phase wavelength locker employs an etalon with multiple steps, the steps providing optical cavities having different optical lengths for use with multiple photodetectors, such that a resonance position of each etalon step is offset by a fraction of a resonance period. The stepped etalon can be employed to track the exact wavelength of a laser in a wavelength division multiplexing (WDM) system.
Abstract translation: 多相波长锁定器采用具有多个步骤的标准具，所述步骤提供具有不同光学长度的光学腔，用于多个光电检测器，使得每个标准具步骤的谐振位置被谐振周期的一部分抵消。 可以采用阶梯式标准具来跟踪波分复用（WDM）系统中激光器的精确波长。
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公开(公告)号：US06561420B1
公开(公告)日：2003-05-13
申请号：US09835961
申请日：2001-04-10
Applicant: Erica Tsai , John C. Tsai
Inventor： Erica Tsai , John C. Tsai
IPC: G06K708
CPC classification number: H04B10/572 , G01J2009/0257 , G06K7/084 , G06K19/083 , G06K19/12 , H01S3/13 , H04B10/07 , H04B10/503
Abstract: A data distribution system (10) including an information card (12) and a reader (14). The information card (12) includes visible indicia (20) on its front and stripe zones (34) and a ring zone (36) on its back. The zones (34, 36) are suitable for magnetically recording data, and optional data identifiers. The reader (14) may be a linear reader (14a) or a rotary reader (14b), and optionally may act automatically in response to reading a data identifier. If the reader (14) is a rotary reader (14b) the information card (12) may be loaded into a cartridge (16) which is loaded into the rotary reader (14b).
Abstract translation: 一种包括信息卡（12）和读取器（14）的数据分发系统（10）。 信息卡（12）在其前面包括可见标记（20），在其背面包括条带区（34）和环形区（36）。 区域（34,36）适用于磁记录数据和可选数据标识符。 读取器（14）可以是线性读取器（14a）或旋转读取器（14b），并且可选地响应于读取数据标识符而自动地进行操作。 如果读取器（14）是旋转读取器（14b），信息卡（12）可以被装载到装载到旋转读取器（14b）中的盒（16）中。
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公开(公告)号：US06498800B1
公开(公告)日：2002-12-24
申请号：US09636807
申请日：2000-08-10
Applicant: Reich Watterson , Parviz Tayebati , Don McDaniel , Kevin McCallion
Inventor： Reich Watterson , Parviz Tayebati , Don McDaniel , Kevin McCallion
IPC: H01S310
CPC classification number: G01J9/0246 , G01J2009/0257 , H01S5/0078 , H01S5/0687 , H01S5/18366 , H01S5/18388
Abstract: A compact wavelength monitoring and control assembly for a narrow band (i.e., laser) source is provided, comprising two narrow bandpass, wavelength selective transmission filter elements of Fabry-Perot structure through which two separate collimated beams from a laser source are directed onto two photodetectors. The spacing of the multiple transmission maxima for one etalon is chosen to match that of the desired set of frequencies to be used for locking purposes. The spacing of the transmission maxima for the second etalon is used, in combination with a dielectric filter, to generate a wavelength fiducial to denote an absolute frequency. The spacing of the second etalon is chosen to be much wider than the frequency grid etalon. A control circuit processes the simultaneously acquired signals from the two detectors as the laser wavelength is varied. The device functions as an optical wavelength discriminator in which the detectors convert optical energy to current (or voltage) for a feedback loop for controlling the laser source. Any one of a large number of discrete, predetermined wavelengths may be chosen for locking using the same device. The system is compact and may be packaged within the same temperature controlled laser assembly for maximum performance and minimum circuit board space requirements.
Abstract translation: 提供了一种用于窄带（即激光）源的紧凑型波长监视和控制组件，其包括法布里 - 珀罗结构的两个窄带通波长选择性透射滤波器元件，来自激光源的两个分离的准直光束通过该组件被引导到两个光电检测器 。 选择一个标准具的多个传输最大值的间距以匹配要用于锁定目的的期望频率组的间隔。 与介质滤波器组合使用第二标准具的透射最大值的间隔以产生表示绝对频率的波长基准。 第二个标准具的间距被选择为比频率网格标准具宽得多。 当激光波长变化时，控制电路处理来自两个检测器的同时采集的信号。 该器件用作光学波长鉴别器，其中检测器将光能转换成用于控制激光源的反馈回路的电流（或电压）。 可以选择大量离散的预定波长中的任何一个用于使用相同的装置进行锁定。 该系统紧凑，可以封装在相同的温度控制激光器组件中，以实现最大的性能和最小的电路板空间要求。
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74.发明授权
公开(公告)号：US5218426A
公开(公告)日：1993-06-08
申请号：US723950
申请日：1991-07-01
Applicant: John L. Hall , Peter J. Martin , Mark L. Eickhoff , Michael P. Winters
Inventor： John L. Hall , Peter J. Martin , Mark L. Eickhoff , Michael P. Winters
CPC classification number: G01N21/45 , G01J2009/0257 , G01N2021/4106
Abstract: A highly accurate in-situ determination of the refractivity of an ambient atmosphere is disclosed, which determination is utilizable to enhance the accuracy of a quantity measurement. The system includes use of a refractometer exposed to an ambient atmosphere and having light directed thereto to form an optical interference fringe pattern having a dependence upon the refractivity of the ambient atmosphere. The fringe pattern is measured as a function of angle either by sequentially scanning a collimated input beam in angle while collecting and detecting the transmitted light, or by imaging (onto a multi-element detector) the angular exit space of the interferometer illuminated with a diverging input beam. The electrical output of the detector is processed to provide an output indicative of the index of refraction of the ambient atmosphere. The determined index of refraction is utilizable to enhance the accuracy of a quantity measurement, such as, for example, the distance measurement provided by a Fabry-Perot or displacement-measuring Michelson interferometer.
Abstract translation: 公开了对环境大气的折射率的高精度原位测定，该确定可用于提高量测量的精度。 该系统包括使用暴露于环境大气中的折射计，并且具有指向其的光以形成具有依赖于环境大气的折射率的光学干涉条纹图案。 通过在收集和检测透射光的同时顺序地扫描准直的输入光束，或者通过成像（在多元件检测器上）成像（以多元件检测器）照射的干涉仪的角出射空间，将条纹图案作为角度测量， 输入光束。 处理检测器的电输出以提供指示环境大气的折射率的输出。 确定的折射率可用于提高量测量的精度，例如由法布里 - 珀罗或位移测量迈克尔逊干涉仪提供的距离测量。
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公开(公告)号：WO2016084755A1
公开(公告)日：2016-06-02
申请号：PCT/JP2015/082798
申请日：2015-11-20
Applicant: ギガフォトン株式会社
IPC: H01S3/13
CPC classification number: H01S3/13 , G01J1/0425 , G01J1/0474 , G01J3/28 , G01J9/0246 , G01J2009/0257 , H01S3/08004 , H01S3/08009 , H01S3/08036 , H01S3/0811 , H01S3/0823 , H01S3/1305 , H01S3/134 , H01S3/137 , H01S3/2251 , H01S3/2256
Abstract: 狭帯域化レーザ装置は、スペクトル幅を狭帯域化する光学素子を含むレーザ共振器と、レーザ共振器におけるパルスレーザ光の光路を挟んで配置された一対の放電電極と、一対の放電電極にパルス状の電圧を印加する電源と、レーザ共振器から出力されたパルスレーザ光の波長を計測して、第１の計測結果を出力する第１の波長計測器と、レーザ共振器から出力されたパルスレーザ光の波長を計測して、第２の計測結果を出力する第２の波長計測器と、第２の計測結果に基づいて第１の計測結果を較正する制御部と、を備えてもよい。制御部は、第１の繰り返し周波数で電源が一対の放電電極にパルス状の電圧を印加するように電源を制御したときの第２の計測結果と、第１の繰り返し周波数より高い第２の繰り返し周波数で電源が一対の放電電極にパルス状の電圧を印加するように電源を制御したときの第２の計測結果との差に基づいて、第１の計測結果を較正してもよい。
Abstract translation: 一种窄谱激光器件，其可以设置有：包括用于使光谱宽度变窄的光学元件的激光谐振器; 布置成将脉冲激光的光路夹在激光谐振器中的一对放电电极; 用于向一对放电电极施加脉冲电压的电源; 第一波长测量装置，用于测量从激光谐振器输出的脉冲激光的波长，并输出第一测量结果; 第二波长测量装置，用于测量从激光谐振器输出的脉冲激光的波长，并输出第二测量结果; 以及控制单元，用于基于第二测量结果来校准第一测量结果。 控制单元可以基于在控制电源时获得的第二测量结果之间的差值校准第一测量结果，使得以第一重复频率向一对放电电极施加脉冲电压的电源和第二测量结果的第二测量结果 当电源被控制使得电源以比第一重复频率高的第二重复频率向一对放电电极施加脉冲电压时获得的测量结果。
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Patent Agency Ranking76.发明申请
公开(公告)号：WO2002097936A2
公开(公告)日：2002-12-05
申请号：PCT/US2002/017299
申请日：2002-05-30
Applicant: ALTITUN AB
Inventor： VILHELMSSON, Kennet , BROBERG, Bjorn , PLASTOW, Robert
IPC: H01S5/00
CPC classification number: G01J9/0246 , G01J2009/0257 , H01S3/1305 , H01S5/06256 , H01S5/0687 , H01S5/1209
Abstract: The present invention relates to an approach to locking the output wavelength of a laser that uses an etalon having non-parallel surfaces. Under this approach, the non-parallel etalon is formed from a readily available, low cost optical component, and may include an etalon with a wedged shape or with at least one curved surface. This approach offers significant advantages over the use of a planar etalon. It provides two degrees of freedom in alignment of the device, and so both the absolute wavelength and the spacing between the interference fringes can be independently adjusted. It also reduces the cost and difficulty of assembly, since it utilizes standard optical parts with wide tolerances. The invention may be used within a standard lase package. The invention also permits the laser to be tuned to a precise operating wavelength by setting various tuning signals according to values stored in memory.
Abstract translation: 本发明涉及锁定使用具有非平行表面（122,124）的标准具（112）的激光器（102）的输出波长的方法。 在这种方法下，非平行标准具（112）由易于获得的低成本光学部件形成，并且可以包括具有楔形形状或至少一个弯曲表面的标准具。 这种方法比使用平面标准具具有显着的优点。 它提供了器件对准的两个自由度，因此绝对波长和干涉条纹之间的间隔都可以独立调整。 它也降低了组装的成本和难度，因为它采用了宽公差的标准光学部件。 本发明可以在标准激光器封装内使用。 本发明还允许通过根据存储在存储器中的值设置各种调谐信号来将激光器调谐到精确的工作波长。
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公开(公告)号：WO2002084573A1
公开(公告)日：2002-10-24
申请号：PCT/US2002/009381
申请日：2002-03-26
Applicant: TSAI, Erica , TSAI, John, C.
Inventor： TSAI, Erica , TSAI, John, C.
IPC: G06K5/00
CPC classification number: H04B10/572 , G01J2009/0257 , G06K7/084 , G06K19/083 , G06K19/12 , H01S3/13 , H04B10/07 , H04B10/503
Abstract: A data distribution system (10) including an information card (12) and a reader (14). The information card (12) includes visible indicia (20) on its front and stripe zones (34) and a ring zone (36) on its back. The zones (34, 36) are suitable for magnetically recording data, and optional data identifiers. The reader (14) may be a linear reader (14a) or a rotary reader (14b), and optionally may act automatically in response to reading a data identifier. If the reader (14) is a rotary reader (14b) the information card (12) may be loaded into a cartridge (16) which is loaded into the rotary reader (14b).
Abstract translation: 一种包括信息卡（12）和读取器（14）的数据分发系统（10）。 信息卡（12）在其前面包括可见标记（20），在其背面包括条带区（34）和环形区（36）。 区域（34,36）适用于磁记录数据和可选数据标识符。 读取器（14）可以是线性读取器（14a）或旋转读取器（14b），并且可选地响应于读取数据标识符而自动地进行操作。 如果读取器（14）是旋转读取器（14b），信息卡（12）可以被装载到装载到旋转读取器（14b）中的盒（16）中。
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公开(公告)号：WO01011738A1
公开(公告)日：2001-02-15
申请号：PCT/US2000/021905
申请日：2000-08-10
IPC: G01J9/02 , H01S5/0687 , H01S5/183 , H01S3/10
CPC classification number: G01J9/0246 , G01J2009/0257 , H01S5/0078 , H01S5/0687 , H01S5/18366 , H01S5/18388
Abstract: A compact wavelength monitoring and control assembly (110) for a narrow band (i.e., laser) source is provided, comprising two narrow bandpass, wavelength selective transmission filter elements (130, 160) of Fabry-Perot structure through which two separate collimated beams from a laser source are directed onto two photodetectors (145, 175). A control circuit processes the simultaneously acquired signals from the two detectors (145, 175) as the laser wavelength is varied. The device functions as an optical wavelength discriminator in which the detectors (145, 175) convert optical energy to current (or voltage) for a feedback loop for controlling the laser source. Any one of a large number of discrete, predetermined wavelengths may be chosen for locking using the same device.
Abstract translation: 提供了用于窄带（即，激光）源的紧凑波长监测和控制组件（110），其包括法布里 - 珀罗结构的两个窄带通波长选择性透射滤波器元件（130,160） 激光源被引导到两个光电检测器（145,175）上。 当激光波长变化时，控制电路处理来自两个检测器（145,175）的同时采集的信号。 该装置用作光波长鉴别器，其中检测器（145,175）将光能转换成用于控制激光源的反馈回路的电流（或电压）。 可以选择大量离散的预定波长中的任何一个用于使用相同的装置进行锁定。
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公开(公告)号：US20180266890A1
公开(公告)日：2018-09-20
申请号：US15977596
申请日：2018-05-11
Inventor： Kishan DHOLAKIA , Michael MAZILU , Klaus METZGER
CPC classification number: G01J9/0246 , G01J1/4257 , G01J3/0205 , G01J4/00 , G01J2001/0481 , G01J2009/0257
Abstract: An optical system comprising a randomizer that has a plurality of randomly positioned scatterers for scattering and thereby randomizing light to generate a speckle pattern and a detector for detecting the speckle pattern to determine at least one property of the light and/or change in at least one property of the light.
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公开(公告)号：US10006811B2
公开(公告)日：2018-06-26
申请号：US15032563
申请日：2014-10-29
Inventor： Kishan Dholakia , Michael Mazilu , Klaus Metzger
CPC classification number: G01J9/0246 , G01J1/4257 , G01J3/0205 , G01J4/00 , G01J2001/0481 , G01J2009/0257
Abstract: An optical system comprising a randomizer that has a plurality of randomly positioned scatterers for scattering and thereby randomizing light to generate a speckle pattern and a detector for detecting the speckle pattern to determine at least one property of the light and/or change in at least one property of the light.
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