公开(公告)号：US06486466B1

公开(公告)日：2002-11-26

申请号：US09301436

申请日：1999-04-28

申请人： Howard Kidorf

发明人： Howard Kidorf

IPC分类号： G01B910

CPC分类号： H01S3/302 ,  H01S3/094096

摘要： A Raman amplifier is provided that includes at least a portion of optical fiber in which an optical signal travels. The optical fiber portion may encompass all or part of the optical transmission path of an optical communication system. A pump energy unit is provided that includes at least three pump sources providing pump power at different pump wavelengths. The different pump wavelengths are spaced apart from one another by nonuniform amounts so that a prescribed Raman gain profile is generated in the optical fiber portion. An optical coupler is provided for coupling the pump power to the optical fiber portion and transmitting the optical signal therethrough.

摘要翻译： 提供了拉曼放大器，其包括光信号行进的光纤的至少一部分。 光纤部分可以包括光通信系统的全部或部分光传输路径。 提供了一种泵能量单元，其包括至少三个在不同泵浦波长提供泵浦功率的泵浦源。 不同的泵浦波长彼此间隔不均匀，使得在光纤部分中产生规定的拉曼增益曲线。 提供一种光耦合器，用于将泵浦功率耦合到光纤部分并透过光信号。

公开(公告)号：US06545261B1

公开(公告)日：2003-04-08

申请号：US09650573

申请日：2000-08-30

申请人： James N. Blake ,  Alexander A. Tselikov

发明人： James N. Blake ,  Alexander A. Tselikov

IPC分类号： G01B910

CPC分类号： G01B11/272 ,  G01F1/661

摘要： A method and system for aligning optical fibers includes aperturing the optical beams from the optical fibers at two points along a path. Photodetectors are placed on the apertures and the positions of the tips of the optical fibers are controlled using actuators to center the optical beams within the apertures.

摘要翻译： 用于对准光纤的方法和系统包括沿着路径的两个点处来自光纤的光束。 光检测器被放置在孔上，并且使用致动器来控制光纤的尖端的位置以使光束在孔内居中。

公开(公告)号：US06545260B1

公开(公告)日：2003-04-08

申请号：US09713954

申请日：2000-11-16

申请人： Masahiro Katashiro ,  Kazuya Matsumoto ,  Shuichi Takayama ,  Katsuya Ono ,  Takeshi Suga ,  Hiroyuki Sangu

发明人： Masahiro Katashiro ,  Kazuya Matsumoto ,  Shuichi Takayama ,  Katsuya Ono ,  Takeshi Suga ,  Hiroyuki Sangu

IPC分类号： G01B910

CPC分类号： G02B23/2484 ,  A61B1/00096 ,  A61B1/00172 ,  A61B1/042 ,  G01B9/00 ,  G02B23/243

摘要： A light scanning optical device comprises a light source for entirely illuminating a subject, a converging optical system for converging light returning from a specific minute region of the subject, a light detector for detecting the light converged by the converging optical system, and a scanning mirror for scanning the minute region, the scanning mirror being produced by a semiconductor manufacturing process.

摘要翻译： 光扫描光学装置包括用于完全照射被摄体的光源，用于会聚从被检体的特定微小区域返回的光的会聚光学系统，用于检测会聚光学系统会聚的光的光检测器和扫描镜 为了扫描微小区域，通过半导体制造工艺制造扫描镜。

公开(公告)号：US06403949B1

公开(公告)日：2002-06-11

申请号：US09448003

申请日：1999-11-23

申请人： Michael A. Davis ,  David R. Fournier ,  David G. Bellemore

发明人： Michael A. Davis ,  David R. Fournier ,  David G. Bellemore

IPC分类号： G01B910

CPC分类号： G01J3/28 ,  G01J1/18

摘要： A method and apparatus for compensating for systematic error in a wavelength measuring device that provides values for the wavelengths reflected from one or more optical fibers in which fiber Bragg gratings (FBGs) serve as sensors. A high-precision temperature sensing and measuring circuit is used to measure the temperature of a reference FBG that also provides light at some wavelength to the wavelength measuring device. The wavelength reflected by the reference FBG changes with temperature in a way that is known. The (value of) the wavelength being reflected from the reference FBG is then provided to a dynamic compensator, which also receives the wavelengths of light reflected from the sensor FBGs, and the dynamic compensator adjusts the wavelengths of the sensor FBGs using a correction based on the correction required to adjust the value of the wavelength of the reference FBG as measured by the wavelength measuring device.

摘要翻译： 一种用于补偿波长测量装置中的系统误差的方法和装置，其提供从光纤布拉格光栅（FBG）用作传感器的一个或多个光纤反射的波长的值。 使用高精度温度感测和测量电路来测量也向波长测量装置提供某种波长的光的参考FBG的温度。 由参考FBG反射的波长以已知的方式随温度变化。 然后将从参考FBG反射的波长的（值）提供给动态补偿器，动态补偿器也接收从传感器FBG反射的光的波长，并且动态补偿器使用基于以下的校正来调整传感器FBG的波长 调整由波长测量装置测量的参考FBG的波长值所需的校正。

公开(公告)号：US06586725B2

公开(公告)日：2003-07-01

申请号：US09900953

申请日：2001-07-10

申请人： Natsuhiko Mizutani ,  Takahiro Numai

发明人： Natsuhiko Mizutani ,  Takahiro Numai

IPC分类号： G01B910

CPC分类号： G01C19/661

摘要： An optical gyro is provided with a ring laser and detection unit for detecting the beat frequency of said ring laser, and comprises a first ring laser of which beat frequency decreases when the angular velocity increases in a certain direction from a standstill state and a second ring laser of which beat frequency increases when the angular velocity increases regardless of the rotating direction. The first and second ring lasers are so positioned as to be mutually independent optically.

公开(公告)号：US06541759B1

公开(公告)日：2003-04-01

申请号：US09599348

申请日：2000-06-20

申请人： Henry A. Hill

发明人： Henry A. Hill

IPC分类号： G01B910

CPC分类号： G01B9/02019 ,  G01B9/02003 ,  G01B9/02061 ,  G01B9/02068 ,  G01B2290/70 ,  G03F7/70775

摘要： An interferometry system including: an interferometer which during operation directs a measurement beam along a measurement path contacting a measurement object and combines at least a portion of the measurement beam with another beam to form an overlapping pair of exit beams, the interferometer including a beam steering assembly having a beam steering element and a positioning system to orient the beam steering element, the beam steering element positioned to direct the measurement beam, the measurement beam contacting the beam steering element; a control circuit which during operation causes the positioning system to reorient the beam steering element in response to a change in at least one of angular orientation and position of the measurement object; a photodetector; and an optical fiber coupling an output beam derived from the overlapping pair of exit beams from the interferometer to the photodetector.

摘要翻译： 一种干涉测量系统，包括：干涉仪，其在操作期间沿着接触测量对象的测量路径引导测量光束，并将所述测量光束的至少一部分与另一光束组合以形成重叠的一对出射光束，所述干涉仪包括光束转向 组件，其具有光束操纵元件和定位系统以定向光束操纵元件，定位成引导测量光束的光束操纵元件，测量光束接触光束操纵元件; 控制电路，其在操作期间使得所述定位系统响应于所述测量对象的角度取向和位置中的至少一个的变化来重新定向所述光束操纵元件; 光检测器; 以及将从所述干涉仪的重叠出射光束导出的输出光束耦合到所述光电检测器的光纤。