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1. 发明授权

US5289258A Fiber optic gyroscope modulation error reduction 失效
标题翻译：光纤陀螺仪调制误差降低
公开(公告)号：US5289258A
公开(公告)日：1994-02-22
申请号：US821030
申请日：1992-01-15
申请人： Bogdan Szafraniec , Richard H. Frische , Richard J. August , Kevin B. Dimond , Dick Ang , James N. Blake , John R. Feth
发明人： Bogdan Szafraniec , Richard H. Frische , Richard J. August , Kevin B. Dimond , Dick Ang , James N. Blake , John R. Feth
IPC分类号： G01C19/72 , G02F1/01
CPC分类号： G01C19/72
摘要： An error control arrangement for an optical fiber rotation sensor having electromagnetic waves propagating in opposite directions passing through a bias optical phase modulator operated by a phase modulation generator both of which can contribute second harmonic distortion resulting in errors in the sensor output signal which are controlled. Control of the bias optical phase modulator contribution for a modulator having a piezoelectric body wrapped with an optical fiber portion is accomplished by mounting the body utilizing layers having nonlinear stiffness.
摘要翻译：一种光纤旋转传感器的误差控制装置，其具有通过相位调制发生器操作的偏置光相位调制器的相反方向传播的电磁波，这两者都可以产生二次谐波失真，从而导致传感器输出信号中被控制的误差。对具有用光纤部分包裹的压电体的调制器的偏置光学相位调制器贡献的控制通过使用具有非线性刚度的层来安装本体来实现。

2. 发明授权

US5559908A Method for damping optical fiber on a bias optical phase modulator 失效
标题翻译：偏置光相位调制器阻尼光纤的方法
公开(公告)号：US5559908A
公开(公告)日：1996-09-24
申请号：US468783
申请日：1995-06-06
申请人： Richard J. August , Kevin B. Dimond , John R. Feth , Clarence E. Laskoskie , Lee K. Strandjord , Bogdan Szafraniec
发明人： Richard J. August , Kevin B. Dimond , John R. Feth , Clarence E. Laskoskie , Lee K. Strandjord , Bogdan Szafraniec
IPC分类号： G01C19/72 , G02B6/00 , G02B6/44 , G02F1/01 , G01B9/02
CPC分类号： G01C19/722 , G01C19/72 , G02F1/0134 , G02B6/4457
摘要： A method for damping an optical fiber on a bias optical phase modulator having two optical fiber leads comprises the steps of securing the bias phase modulator, applying a silicone or acrylate type of substance to an outward facing surface of the fiber wound on the bias phase modulator means, applying the silicone or acrylate type of substance on the two optical fiber leads for at least 0.5 inch (1.28 cm.) along each lead which is apart from the place where the optical fiber wound on the bias phase modulator, frequently brushing or smoothing out the applied silicone or acrylate type of substance until the substance beings to set, and drying the substance on the optical fiber until the substance is cured. The applied damping material significantly reduces an amplitude of a frequency caused by mechanical vibrations in a rotation sensor.
摘要翻译：一种用于在具有两个光纤引线的偏置光学相位调制器上对光纤进行阻尼的方法包括以下步骤：确定偏置相位调制器，将硅或丙烯酸酯类型的物质施加到缠绕在偏置相位调制器上的光纤向外的表面上意味着将两种光纤引线上的硅酮或丙烯酸酯类型的物质沿着沿着偏离相位调制器上缠绕光纤的位置的每个引线至少0.5英寸（1.28厘米）施加，经常刷涂或平滑将所施用的硅酮或丙烯酸酯类物质直到物质固化，并干燥光纤上的物质直到物质固化。所施加的阻尼材料显着降低由旋转传感器中的机械振动引起的频率振幅。

3. 发明授权

US5457532A Harmonic phase modulation error reducer 失效
标题翻译：谐波相位调制误差减法器
公开(公告)号：US5457532A
公开(公告)日：1995-10-10
申请号：US250970
申请日：1994-05-31
申请人： Richard J. August , Kevin B. Dimond , John R. Feth , Clarence E. Laskoskie , Lee K. Strandjord , Bogdan Szafraniec
发明人： Richard J. August , Kevin B. Dimond , John R. Feth , Clarence E. Laskoskie , Lee K. Strandjord , Bogdan Szafraniec
IPC分类号： G01C19/72 , G02B6/00 , G02B6/44 , G02F1/01
CPC分类号： G01C19/722 , G01C19/72 , G02F1/0134 , G02B6/4457
摘要： A rotation sensor for sensing rotation, particularly about an axis of a coiled optical fiber, wherein the coiled optical fiber has with light waves propagating in opposite directions in the coiled optical fiber, the phase relationship of the counter-propagating light waves providing a basis for indicating rotation of the sensor. A portion of the coiled optical fiber is a part of and affected by a bias optical phase modulator which causes a varying phase relationship between the light waves at a fundamental frequency. However, the varying phase relation ship has at least one harmonic which is due to mechanical vibration of the optical fiber that is a part of the modulator. This harmonic contributes to an erroneous indication of rotation. The amplitude of such harmonic is reduced by lowering the Q of the resonating fiber. This is effected by applying a damping material to the optical fiber and a portion of the modulator. A photodetector detects the counter-propagating waves and sends a corresponding electrical signal on to a signal component selection device that provides an indication of sensed rotation, including error due to the mechanically resonating optical fiber of the modulator.
摘要翻译：一种用于感测旋转的旋转传感器，特别是围绕卷绕的光纤的轴线的旋转传感器，其中线圈式光纤具有在线圈化光纤中沿相反方向传播的光波，反向传播光波的相位关系为指示传感器的旋转。卷绕的光纤的一部分是偏置光相位调制器的一部分并受其影响，该偏置光相位调制器导致基频处的光波之间的变化的相位关系。然而，变化的相位关系船具有至少一个谐波，其归因于作为调制器的一部分的光纤的机械振动。这种谐波有助于错误的旋转指示。通过降低谐振光纤的Q来减小这种谐波的振幅。这通过将阻尼材料施加到光纤和调制器的一部分来实现。光电检测器检测反向传播波，并将相应的电信号发送到信号分量选择装置，信号分量选择装置提供感测旋转的指示，包括由调制器的机械谐振光纤引起的误差。

4. 发明授权

US5377283A Configuration control of mode coupling errors 失效
标题翻译：模式耦合错误的配置控制
公开(公告)号：US5377283A
公开(公告)日：1994-12-27
申请号：US49185
申请日：1993-04-16
申请人： James N. Blake , John R. Feth , Bogdan Szafraniec
发明人： James N. Blake , John R. Feth , Bogdan Szafraniec
IPC分类号： G01C19/72 , G02B6/00 , G02F1/01 , G02B6/26
CPC分类号： G01C19/721
摘要： An optical fiber rotation sensor having an ordinary single mode fiber coil with a depolarizer in series therewith configured with component optical path lengths therein and birefringent axes relationships therein chosen with respect to the source autocorrelation. Amplitude related phase errors due to polarization mode coupling can be eliminated or reduced economically, and signal fading can be substantially prevented.
摘要翻译：一种具有普通单模光纤线圈的光纤旋转传感器，其具有串联的去偏振器，其中配置有分量光路长度，并且相对于源自相关选择双折射轴关系。由于偏振模耦合引起的振幅相关误差可以经济地消除或降低，并且可以显着地防止信号衰落。

5. 发明授权

US5381230A Emission source spectrum stabilizer 失效
标题翻译：发射源光谱稳定剂
公开(公告)号：US5381230A
公开(公告)日：1995-01-10
申请号：US17685
申请日：1993-02-12
申请人： James N. Blake , Clarence E. Laskoskie , Bogdan Szafraniec
发明人： James N. Blake , Clarence E. Laskoskie , Bogdan Szafraniec
IPC分类号： G01C19/72 , G01J9/02 , G02B6/00 , G02B6/12 , G02B6/126 , G02B6/28 , G02B6/34 , G01B9/02
CPC分类号： G02B6/2843 , G01C19/721 , G02B6/126 , G02B2006/1218 , H01S5/0687
摘要： A spectrum stabilizer for stabilizing the wavelength of light emitted by a source for use in an optical system where the source can have that wavelength altered by varying one or more source parameters, such as source current, temperature and/or alignment of the output end of the source with an optical fiber of the optical system, and wherein light from a selected point in the optical system is coupled to a double mode waveguide for wavelength sensing.
摘要翻译：用于稳定由光源发射的光的波长的光谱稳定器，用于光源系统中的源可以通过改变一个或多个源参数而改变波长，例如源电流，温度和/或对准输出端所述光源具有所述光学系统的光纤，并且其中来自所述光学系统中的选定点的光耦合到用于波长感测的双模式波导。

6. 发明授权

US06175410B1 Fiber optic gyroscope having modulated suppression of co-propagating and counter-propagating polarization errors 有权
标题翻译：具有调制抑制共同传播和反向传播偏振误差的光纤陀螺仪
公开(公告)号：US06175410B1
公开(公告)日：2001-01-16
申请号：US09215581
申请日：1998-12-17
申请人： Bogdan Szafraniec , James N. Blake , Charles H. Lange , Lee K. Strandjord
发明人： Bogdan Szafraniec , James N. Blake , Charles H. Lange , Lee K. Strandjord
IPC分类号： G01C1972
CPC分类号： G01C19/721
摘要： A fiber optic gyroscope having polarization error-correcting modulation. Polarization errors originate from the interference of primary waves and secondary cross-coupled waves. Although these error signals are very difficult to remove modulation signals may be applied to the integrated optics chip that minimize the total error over a period of time. By providing distinct but inter-related modulation signals to opposing inputs of the sensing coil, the various polarization errors can be averaged to zero over the period of the modulation signals.
摘要翻译：具有偏振误差校正调制的光纤陀螺仪。极化误差源于主波和二次交叉耦合波的干扰。尽管这些误差信号非常难以去除调制信号，但可以将其应用于在一段时间内使总误差最小化的集成光学芯片。通过向感测线圈的相对输入提供不同但相互关联的调制信号，在调制信号的周期内可将各种偏振误差平均为零。

7. 发明申请

US20090141274A1 Polarization Dependent Loss Analyzer 审中-公开
标题翻译：极化相关损耗分析仪
公开(公告)号：US20090141274A1
公开(公告)日：2009-06-04
申请号：US11947745
申请日：2007-11-29
申请人： Bogdan Szafraniec , Evan Paul Thrush , Calivin Bruce Ward
发明人： Bogdan Szafraniec , Evan Paul Thrush , Calivin Bruce Ward
IPC分类号： G01J4/00
CPC分类号： G01M11/337
摘要： A polarization dependent loss measuring device and the method of using the same are disclosed. The device includes a light source, a sensor, and a controller. The light source generates a polarization modulated light signal, and is adapted to apply the polarization modulated light signal to a device under test. The sensor generates an electrical output signal representing an intensity of an output light signal leaving the device under test as a function of time. The controller measures an amplitude and phase of the electrical output signal at a first frequency and generates an output indicative of a polarization dependent loss in the device under test.
摘要翻译：公开了偏振相关损耗测量装置及其使用方法。该装置包括光源，传感器和控制器。光源产生偏振调制光信号，并且适于将偏振调制光信号应用于被测器件。该传感器产生表示作为时间的函数离开被测器件的输出光信号的强度的电输出信号。控制器以第一频率测量电输出信号的幅度和相位，并产生指示被测器件中偏振相关损耗的输出。

8. 发明申请

US20080297768A1 Polarization Mode Dispersion Analyzer 审中-公开
标题翻译：极化模式色散分析仪
公开(公告)号：US20080297768A1
公开(公告)日：2008-12-04
申请号：US11756942
申请日：2007-06-01
申请人： Bogdan Szafraniec , Calvin Bruce Ward
发明人： Bogdan Szafraniec , Calvin Bruce Ward
IPC分类号： G01N21/00
CPC分类号： G01M11/336
摘要： A polarization mode dispersion analyzer having a light source, a sensor, an output phase signal analyzer, and a controller. The light source generates a probe light signal that is intensity modulated and also polarization modulated, the light source being adapted to apply the light signal to a device under test. The sensor generates an output phase signal related to the phase of the intensity modulation of an output optical signal leaving the device under test. The output phase signal analyzer measures an amplitude and phase of at least one frequency component of the output phase signal at a frequency related to the polarization modulation. The controller generates a signal indicative of a differential group delay of the device under test utilizing the measured amplitude and phase. The controller also measures a group delay associated with the device under test.
摘要翻译：具有光源，传感器，输出相位信号分析器和控制器的偏振模色散分析仪。光源产生强度调制并且也被偏振调制的探测光信号，光源适于将光信号施加到被测器件。传感器产生与离开被测器件的输出光信号的强度调制相位相关的输出相位信号。输出相位信号分析器以与偏振调制相关的频率测量输出相位信号的至少一个频率分量的振幅和相位。控制器利用测量的幅度和相位产生指示被测器件的差分组延迟的信号。控制器还测量与被测设备相关的组延迟。

9. 发明申请

US20080100847A1 Heterodyne Photonic Dispersion and Loss Analyzer 审中-公开
标题翻译： Heterodyne光子色散和损耗分析仪
公开(公告)号：US20080100847A1
公开(公告)日：2008-05-01
申请号：US11553422
申请日：2006-10-26
申请人： Bogdan Szafraniec
发明人： Bogdan Szafraniec
IPC分类号： G01B9/02
CPC分类号： G01B9/0201 , G01B9/02004 , G01B9/02081 , G01B2290/70
摘要： A method and apparatus for determining the optical parameters of a device under test (DUT) is disclosed. A first portion of an optical signal is modulated to generate a first modulated signal. The first modulated signal is applied to the DUT to output a test signal. A second portion of the optical signal is modulated to create a reference signal. The test signal and reference signal are optically combined into a combined signal. An electrical signal generated from the combined signal is processed to determine at least one optical parameter of the DUT. Processing the electrical signal includes demodulating the electrical signal.
摘要翻译：公开了一种用于确定待测器件（DUT）的光学参数的方法和装置。光信号的第一部分被调制以产生第一调制信号。将第一调制信号施加到DUT以输出测试信号。光信号的第二部分被调制以产生参考信号。测试信号和参考信号被光学地组合成组合信号。从组合信号产生的电信号被处理以确定DUT的至少一个光学参数。处理电信号包括解调电信号。

10. 发明申请

US20050012934A1 Optical analyzer and method for measuring spectral amplitude and phase of input optical signals using heterodyne architecture 失效
标题翻译：光学分析仪和使用外差架构测量输入光信号的光谱幅度和相位的方法
公开(公告)号：US20050012934A1
公开(公告)日：2005-01-20
申请号：US10623403
申请日：2003-07-18
申请人： Bogdan Szafraniec
发明人： Bogdan Szafraniec
IPC分类号： G01J9/00 , G01J9/04 , H04B10/02 , H04B10/08 , G01B9/02
CPC分类号： G01J9/04 , H04B10/0795
摘要： An optical analyzer and method for measuring optical properties of optical signals utilizes a heterodyne architecture to measure spectral amplitude and phase of a periodically modulated input optical signal, such as an optical signal from a periodically modulated distributed feedback (DFB) laser. The spectral amplitude and phase measurements are derived from a heterodyne signal, which is produced by combining and mixing the input optical signal and a local oscillator (LO) signal. The optical spectrum that is reconstructed from the heterodyne signal includes “inner” spectral peaks that contain phase information of the input optical signal. The inner spectral peaks may be produced by an optical or electrical mixing technique. The spectral phase of the input optical signal is recovered from the inner spectral peaks of the reconstructed optical spectrum.
摘要翻译：用于测量光信号的光学特性的光学分析仪和方法利用外差架构来测量周期性调制的输入光信号（例如来自周期性调制分布反馈（DFB）激光器的光信号）的频谱幅度和相位。通过组合和混合输入光信号和本地振荡器（LO）信号产生的外差信号导出频谱幅度和相位测量。从外差信号重构的光谱包括包含输入光信号的相位信息的“内”谱峰。内部光谱峰可以通过光学或电气混合技术产生。从重构光谱的内部光谱峰恢复输入光信号的光谱相位。

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