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1. 发明申请

WO0206769A2 METHOD FOR CONTROLLING FIBER OPTIC SENSOR SCALE FACTOR 审中-公开
标题翻译：控制光纤传感器尺度因子的方法
公开(公告)号：WO0206769A2
公开(公告)日：2002-01-24
申请号：PCT/US0122127
申请日：2001-07-13
申请人： KVH IND INC
发明人： DYOTT RICHARD B
IPC分类号： G01C19/72 , G01R15/24 , G01C19/00
CPC分类号： G01C19/72 , G01R15/246 , G01R15/247
摘要： A system and a method for controlling the scale factor of a fiber optic sensor are disclosed. The scale factor may be maintained at a constant level by controlling the power level of the light source based on the amplitude of a modulation superimposed on the modulator drive signal. Alternatively, scale factor may be maintained at a constant level by setting the detected signal at twice themodulator drive frequency to zero.
摘要翻译：公开了一种用于控制光纤传感器的比例因子的系统和方法。可以通过基于调制器驱动信号上叠加的调制的幅度来控制光源的功率电平，将比例因子维持在恒定水平。或者，通过将检测到的信号设置为二次调制器驱动频率为零，可以将比例因子保持在恒定水平。

2. 发明申请

WO0206867A3 METHOD OF INCORPORATING OPTICAL MATERIAL INTO AN OPTICAL FIBER 审中-公开
标题翻译：将光学材料纳入光纤的方法
公开(公告)号：WO0206867A3
公开(公告)日：2002-06-27
申请号：PCT/US0121836
申请日：2001-07-11
申请人： KVH IND INC
发明人： DYOTT RICHARD B
IPC分类号： G02B6/036 , G02B6/28 , G02B6/34 , G02F1/01
CPC分类号： G02B6/02 , G02B6/2826 , G02F1/0118
摘要： A method for incorporating an optical material into an optical fiber and optical devices utilizing the method are disclosed. Fiber material may be removed from the optical fiber to expose the fiber core and the core may then be at least partially removed. The optical material may then be incorporated into the core area to replace the removed core. Cladding material may then be deposited over the optical material and an electrode may be fixed to the cladding over the optical material to form an optical device.
摘要翻译：公开了一种将光学材料结合到光纤中的方法和利用该方法的光学装置。可以从光纤去除纤维材料以暴露纤维芯，然后可以至少部分去除纤芯。然后可以将光学材料结合到核心区域中以取代移除的核心。然后可以在光学材料上沉积包层材料，并且可以将电极固定到光学材料上的包层上以形成光学器件。

3. 发明申请

WO0210813A2 REDUCTION OF LINEAR BIREFRINGENCE IN CIRCULAR-CORED SINGLE-MODE FIBER 审中-公开
标题翻译：在圆形单模光纤中减少直线偏振
公开(公告)号：WO0210813A2
公开(公告)日：2002-02-07
申请号：PCT/US0141538
申请日：2001-08-02
申请人： KVH IND INC
发明人： DYOTT RICHARD B , BENNETT SIDNEY M
IPC分类号： G02B6/10 , G02B6/38 , G02B6/00
CPC分类号： G02B6/3833 , G02B6/105
摘要： A method is described for reducing the effect of linear birefringence in an optical fiber, in particular a circular-cored single-mode fiber. The invention may also be directed to an optical fiber having a reduced linear birefringence. A length of the optical fiber may be subdivided into a plurality of sections and a twist having a predetermined sense of rotation and a twist angle may be introduced between the sections. Fibers of this type may find applications, for example, in fiber-optic current and magnetic field sensors.
摘要翻译：描述了一种降低光纤中的线性双折射效应的方法，特别是圆芯单模光纤。本发明还可以涉及具有减小的线性双折射的光纤。光纤的长度可以被细分成多个部分，并且可以在这些部分之间引入具有预定旋转角度的扭转和扭曲角度。这种类型的光纤可以在例如光纤电流和磁场传感器中找到应用。

4. 发明申请

WO03016816A3 CURRENT SENSOR 审中-公开
标题翻译：电流传感器
公开(公告)号：WO03016816A3
公开(公告)日：2003-07-31
申请号：PCT/US0226068
申请日：2002-08-15
申请人： KVH IND INC
发明人： DYOTT RICHARD B
IPC分类号： G01R15/24 , G02B6/10 , H01S5/06 , H01S5/062 , H01S5/065 , G01B9/02
CPC分类号： G02B6/105 , G01R15/246 , H01S5/0607 , H01S5/06209 , H01S5/06233 , H01S5/065 , H01S5/0652
摘要： A method and device for measuring the current in a conductor (38) are presented. They utilize the Faraday effect on counter-propagating circularly polarized beams of flight in a fiber optic coil (37). The light beams are transformed to and from circular polarization by a polarization transformer (40) comprised of a birefringent fiber with a twist through an appropriate angle at an appropriate distance from one end.
摘要翻译：提出了一种用于测量导体（38）中的电流的方法和装置。他们利用光纤线圈（37）中反向传播的圆偏振光束的法拉第效应。光束由双折射光纤组成的偏振变换器（40）转换为圆偏振并由圆偏振转换为偏振变换器（40），该偏振变换器（40）以适当的角度在距离一端适当的距离处扭转。

5. 发明申请

WO0223237A3 DECREASING THE EFFECTS OF LINEAR BIREFRINGENCE IN A FIBER-OPTIC SENSOR BY USE OF BERRY'S TOPOLOGICAL PHASE 审中-公开
标题翻译：通过使用BERRY拓扑相位来减少光纤传感器线性偏振的影响
公开(公告)号：WO0223237A3
公开(公告)日：2003-02-13
申请号：PCT/US0124214
申请日：2001-08-02
申请人： KVH IND INC
发明人： DYOTT RICHARD B , BENNETT SIDNEY M
IPC分类号： G01R15/24 , G02B6/44 , G01C19/72
CPC分类号： G01R15/246
摘要： The invention relates to the field of fiber optics, and more particularly to birefringence in single-mode fibers. The sensitivity of a fiber optic sensor coil for a current sensor may be incresed by winding the sensing fiber, without torsion, around a current-carrying wire to form the coil, wherein the pitch angle of the fiber (14) may be selected to result in a phase shift due to Berry's phase of circularly polarized light propagating throught the fiber. Preferably, the pitch angle may be approximately 60°.
摘要翻译：本发明涉及光纤的领域，更具体地涉及单模光纤中的双折射。用于电流传感器的光纤传感器线圈的灵敏度可以通过在传导线周围缠绕感测光纤而不受扭转而形成线圈，其中可以选择光纤（14）的俯仰角以得到在相位偏移由于Berry相位的圆偏振光传播穿过光纤。优选地，俯仰角可以是大约60°。

6. 发明申请

WO0163302A3 FARADAY-EFFECT CURRENT SENSOR WITH IMPROVED VIBRATION RESPONSE 审中-公开
标题翻译：具有改进振动响应的电磁效应电流传感器
公开(公告)号：WO0163302A3
公开(公告)日：2002-02-28
申请号：PCT/US0106404
申请日：2001-02-28
申请人： KVH IND INC
发明人： DYOTT RICHARD B
IPC分类号： G01R15/24
CPC分类号： G01R15/246
摘要： The invention is directed to a Faraday-type current sensor which is less susceptive to effects caused by rotation, acceleration and vibration of the sensor coil. The sensor coil of the invention includes a first coil section which forms the current sensing coil and a second coil section which is optically connected to the first coil section and forms a compensation or "bucking" coil. The optical fiber of the first coil section preferably has an almost zero birefringence and is connected in series with the optical fiber of the second coil section which preferably has a large birefringence. The illuminating radiation propagates through the sensor coil in such a way, as viewed along the coil axis, that the propagation direction of the radiation in the first coil section with respect to the coil axis is opposite from the propagation direction in the second coil section.
摘要翻译：本发明涉及对传感器线圈的旋转，加速和振动引起的影响较小的法拉第型电流传感器。本发明的传感器线圈包括形成电流感测线圈的第一线圈部分和与第一线圈部分光学连接并形成补偿或“弯曲”线圈的第二线圈部分。第一线圈部分的光纤优选具有几乎为零的双折射率，并且与第二线圈部分的光纤串联连接，优选地具有大的双折射率。沿着线圈轴线观察，照射辐射以传感器线圈传播，使得第一线圈部分中的辐射相对于线圈轴线的传播方向与第二线圈部分中的传播方向相反。

7. 发明申请

WO0069039A9 BROADENING THE LINEWIDTH OF A SEMICONDUCTOR LASER 审中-公开
标题翻译：弥补半导体激光的线性
公开(公告)号：WO0069039A9
公开(公告)日：2002-02-14
申请号：PCT/US0012689
申请日：2000-05-10
申请人： KVH IND INC
发明人： DYOTT RICHARD B
IPC分类号： H01S5/0683 , G02B6/10 , H01S5/06 , H01S5/062 , H01S5/065
CPC分类号： G02B6/105 , H01S5/0607 , H01S5/06209 , H01S5/06233 , H01S5/065 , H01S5/0652
摘要： The invention is directed to a system and a method for controllably broadening the spectral characteristics, such as the emission linewidth, of a semiconductor laser (24) by discharging an electric pulse, for example, a charged transmission line (20), across the laser terminals. The linewidth-broadened lasers find application in fiber optic sensors, such as fiber optic gyroscopes and current sensors, which have a relatively short de-coherence length.
摘要翻译：本发明涉及一种用于通过在激光器上放电电脉冲（例如，带电传输线（20））可控地加宽半导体激光器（24）的光谱特性（例如发射线宽）的系统和方法终端。线宽扩大的激光器可用于具有相对短的去相干长度的光纤传感器，例如光纤陀螺仪和电流传感器。

8. 发明申请

WO0106283A2 REDUCED MINIMUM CONFIGURATION FIBER OPTIC CURRENT SENSOR 审中-公开
标题翻译：减少最小配置光纤电流传感器
公开(公告)号：WO0106283A2
公开(公告)日：2001-01-25
申请号：PCT/US0040376
申请日：2000-07-13
申请人： KVH IND INC
发明人： BENNETT SIDNEY M , DYOTT RICHARD B
IPC分类号： G01R15/24 , G02B6/00
CPC分类号： G01R15/246
摘要： A reduced minimum configuration (RMC) fiber optic current sensor (FOCS) is proposed which includes a sensing coil or sensing region, a light source and an optical path arranged between the front output of the light source and the fiber optic sensing coil/region. At least one quarter wave plate is disposed between the optical path and the sensing coil/region for converting linearly polarized light beams into circularly polarized light beams propagating through the sensing coil/region. The circularly polarized light beams propagating through the sensing region experience a differential phase shift caused by a magnetic field or current flowing in a conductor proximate to the sensing coil. A light detector is located at the back output of the light source and produces an output signal in response to return light intensity transmitted through the light source. The return light intensity is a measure of the magnetic field in the sensor coil/region. The magnetic field may be produced by an electric current flowing through a wire, wherein the sensor coil can be wound around the wire. Electronics is described which minimizes effects caused by changes in the environmental conditions.
摘要翻译：提出了一种减小的最小配置（RMC）光纤电流传感器（FOCS），其包括感测线圈或感测区域，光源和布置在光源的前端输出与光纤感测线圈/区域之间的光路。至少四分之一波片设置在光路和感测线圈/区域之间，用于将线性偏振光束转换成通过感测线圈/区域传播的圆偏振光束。通过感测区域传播的圆偏振光束经受由接近传感线圈的导体中流动的磁场或电流引起的差分相移。光检测器位于光源的后输出处，并且响应于通过光源传输的返回光强而产生输出信号。返回光强度是传感器线圈/区域中的磁场的量度。磁场可以通过流过电线的电流产生，其中传感器线圈可以缠绕在电线上。描述了最小化由环境条件变化引起的影响的电子装置。

9. 发明公开

EP1234359A4 BROADENING THE LINEWIDTH OF A SEMICONDUCTOR LASER 审中-公开
标题翻译： ERWEITERUND DER LINIENBREITE EINER HALBLEITERLASER
公开(公告)号：EP1234359A4
公开(公告)日：2004-03-17
申请号：EP00932224
申请日：2000-05-10
申请人： KVH IND INC
发明人： DYOTT RICHARD B
IPC分类号： H01S5/0683 , G02B6/10 , H01S5/06 , H01S5/062 , H01S5/065
CPC分类号： G02B6/105 , H01S5/0607 , H01S5/06209 , H01S5/06233 , H01S5/065 , H01S5/0652
摘要： The invention is directed to a system and a method for controllably broadening the spectral characteristics, such as the emission linewidth, of a semiconductor laser (24) by discharging an electric pulse, for example, a charged transmission line (20), across the laser terminals. The linewidth-broadened lasers find application in fiber optic sensors, such as fiber optic gyroscopes and current sensors, which have a relatively short de-coherence length.
摘要翻译：本发明涉及一种用于通过在激光端子上放电电脉冲（例如，带电传输线）来可控地加宽半导体激光器的光谱特性（例如发射线宽）的系统和方法。线宽扩大的激光器可用于具有相对短的去相干长度的光纤传感器，例如光纤陀螺仪和电流传感器。

10. 发明专利

DE60130780D1 未知
公开(公告)号：DE60130780D1
公开(公告)日：2007-11-15
申请号：DE60130780
申请日：2001-06-14
申请人： KVH IND INC
发明人： BENNETT SIDNEY M , DYOTT RICHARD B
IPC分类号： G01C19/72 , G01R15/24

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