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1. 发明授权

US07068897B2 Method for restoring or increasing photosensitivity in hydrogen or deuterium loaded large diameter optical waveguide 有权
标题翻译：在氢或氘负载的大直径光波导中恢复或增加光敏性的方法
公开(公告)号：US07068897B2
公开(公告)日：2006-06-27
申请号：US10459653
申请日：2003-06-10
申请人： Jerin J. Russell , Martin A. Putnam , Jay W. Dawson , Trevor W. MacDougall , John R. Troll
发明人： Jerin J. Russell , Martin A. Putnam , Jay W. Dawson , Trevor W. MacDougall , John R. Troll
IPC分类号： G02B6/02
CPC分类号： G02B6/02133 , G02B5/1857 , G02B6/02114 , G02B6/02123
摘要： The present invention provides a new and unique method for increasing the photosensitivity of a large diameter optical waveguide having a cross-section of at least about 0.3 millimeters. The method features loading the large diameter optical waveguide with a photosensitizing gas at a pressure at least about 4000 pounds per square inch (PSI) at a temperature of at least about 250E Celsius. The photosensitizing gas may be hydrogen, Deuterium or other suitable gas. The method also includes the step of using a particular large diameter optical waveguide having a diameter of greater than 0.9 millimeters. The method may be used as part of a process for writing a Bragg grating in an inner core or a cladding of the large diameter optical waveguide.
摘要翻译：本发明提供了一种增加具有至少约0.3毫米横截面的大直径光波导的光敏性的新颖且独特的方法。该方法特征是在至少约250摄氏度的温度下，在至少约4000磅/平方英寸（PSI）的压力下加载具有光敏气体的大直径光波导。光敏气体可以是氢气，氘气或其它合适的气体。该方法还包括使用直径大于0.9毫米的特定大直径光波导的步骤。该方法可以用作在大直径光波导的内芯或包层中写入布拉格光栅的过程的一部分。

2. 发明授权

US07269316B2 Method for restoring photosensitivity in hydrogen or deuterium loaded large diameter optical waveguide 有权
标题翻译：在氢或氘负载的大直径光波导中恢复光敏性的方法
公开(公告)号：US07269316B2
公开(公告)日：2007-09-11
申请号：US11432639
申请日：2006-05-11
申请人： Jerin J. Russell , Martin A. Putnam , Jay W. Dawson , Trevor W. MacDougall , John R. Troll
发明人： Jerin J. Russell , Martin A. Putnam , Jay W. Dawson , Trevor W. MacDougall , John R. Troll
IPC分类号： G02B6/34
CPC分类号： G02B6/02133 , G02B5/1857 , G02B6/02114 , G02B6/02123
摘要： The present invention provides a new and unique method for increasing the photosensitivity of a large diameter optical waveguide having a cross-section of at least about 0.3 millimeters. The method features loading the large diameter optical waveguide with a photosensitizing gas at a pressure at least about 4000 pounds per square inch (PSI) at a temperature of at least about 250° Celsius. The photosensitizing gas may be hydrogen, Deuterium or other suitable gas. The method also includes the step of using a particular large diameter optical waveguide having a core more than 1000 microns from the surface thereof.The method may be used as part of a process for writing a Bragg grating in an inner core or a cladding of the large diameter optical waveguide.
摘要翻译：本发明提供了一种增加具有至少约0.3毫米横截面的大直径光波导的光敏性的新颖且独特的方法。该方法特征是在至少约250℃的温度下，在至少约4000磅/平方英寸（PSI）的压力下加载具有光敏气体的大直径光波导。光敏气体可以是氢气，氘气或其它合适的气体。该方法还包括使用具有从其表面超过1000微米的芯的特定大直径光波导的步骤。该方法可以用作在大直径光波导的内芯或包层中写入布拉格光栅的过程的一部分。

3. 发明授权

US5736737A Concatenated magneto-optic field sensors 失效
标题翻译：串联磁光场传感器
公开(公告)号：US5736737A
公开(公告)日：1998-04-07
申请号：US561810
申请日：1995-11-22
申请人： Jay W. Dawson , Trevor W. MacDougall
发明人： Jay W. Dawson , Trevor W. MacDougall
IPC分类号： G01R15/24 , G01R19/00 , G01R33/032 , H01J5/16 , G01J4/00
CPC分类号： G01R33/0322
摘要： A Faraday effect current sensor uses a plurality of concatenated field sensors, with a single light source and a single detector. At least two Faraday effect sensing elements (single mode sensing fibers) are used, preferably at least three, the sensing elements being interconnected by fusion spliced, polarizing fibers. The sensing fibers may be oriented generally straight, and arranged to form a regular polygon, e.g., an equilateral triangle for a three-element sensor. The locations of the splices between the sensing fibers and the polarizing fibers may further be advantageously arranged such that the sensing fibers form a substantially closed path which may be placed about the current-carrying conductor. The linearity of the sensor response may be improved by selecting an appropriate value of the bias angle of each sensing element, optimally equal to arctan�1/.sqroot.(2n-1)! where n is the number of sensing elements. The present invention may also be adapted for use as a differential current sensor wherein each sensing element is housed in a separate package allowing the elements to be placed about different conductors at a Y-branch, or about a single conductor at different locations.
摘要翻译：法拉第效应电流传感器使用多个级联场传感器，具有单个光源和单个检测器。使用至少两个法拉第效应感测元件（单模感测光纤），优选地至少三个，感测元件通过熔接的偏振光纤相互连接。感测纤维可以大致直线定向，并且被布置成形成用于三元件传感器的正多边形，例如等边三角形。感测纤维和偏振光纤之间的接头的位置可以进一步有利地布置成使得感测纤维形成基本上封闭的路径，其可以放置在载流导体周围。可以通过选择每个感测元件的偏置角的适当值来最佳地等于arctan [1 / 2ROOT（2n-1）]，其中n是感测元件的数量，可以改善传感器响应的线性。本发明还可以适用于差分电流传感器，其中每个感测元件容纳在单独的封装中，允许将元件放置在Y分支处的不同导体周围，或者在不同位置处围绕单个导体放置。

4. 发明授权

US5729005A Fiber optic current sensor with bend birefringence compensation 失效
标题翻译：具有弯曲双折射补偿的光纤电流传感器
公开(公告)号：US5729005A
公开(公告)日：1998-03-17
申请号：US683519
申请日：1996-07-12
申请人： Trevor W. MacDougall , Jay W. Dawson , Leonard A. Johnson
发明人： Trevor W. MacDougall , Jay W. Dawson , Leonard A. Johnson
IPC分类号： G01R15/24 , G02F1/01
CPC分类号： G01R15/246
摘要： A fiber optic subassembly for a Faraday-effect current sensor has an optical sensing fiber supported by a tubular holder in a square or rectangular configuration, with the three of the four corners thereof designed with bends which have a net zero bend-induced birefringence. The bends are formed by providing two loops which have effective angles of about 90.degree., the two loops lying in orthogonal planes, such that the fast axis of birefringence in the first loop is parallel to the slow axis of birefringence in the second loop, and the slow axis of birefringence in the first loop is parallel to the fast axis of birefringence in the second loop. In this manner, retardance accumulated in the first loop is offset by retardance accumulated in the second loop. If the loops are substantially identical, the offsetting of the retardance is effectively complete such that the bend exhibits negligible bend-induced birefringence.
摘要翻译：用于法拉第效应电流传感器的光纤子组件具有由正方形或矩形配置的管状支架支撑的光学感测光纤，其四个角中的三个角部设计有具有零零弯曲引起的双折射的弯曲。通过提供两个有效角度约为90°的回路形成弯曲，两个回路位于正交平面中，使得第一回路中双折射的快轴平行于第二回路中双折射的慢轴，以及第一回路中双折射的慢轴平行于第二回路中双折射的快轴。以这种方式，在第一回路中累积的延迟被第二回路中累积的延迟所抵消。如果环基本相同，则延迟的抵消有效地完成，使得弯曲显示可忽略的弯曲引起的双折射。

5. 发明授权

US5780847A Verdet constant temperature-compensated current sensor 失效
标题翻译： Verdet恒温补偿电流传感器
公开(公告)号：US5780847A
公开(公告)日：1998-07-14
申请号：US822894
申请日：1997-03-24
申请人： Jay W. Dawson , Trevor W. MacDougall
发明人： Jay W. Dawson , Trevor W. MacDougall
IPC分类号： G01R15/24 , G01R19/00 , G02F1/05 , G01R15/00 , G02F1/09
CPC分类号： G01R15/246
摘要： A fiber optic, Faraday-effect current sensor (optical current transducer) which has improved temperature sensitivity due to compensation for temperature-induced variations of the Verdet constant. Fiber optic sensing coils can exhibit shifts in their bias angle due to a number of reasons, including physical rotation of the fibers, an apparent circular birefringence attributable to the sensing coil shape (Berry's phase), circular birefringence in the sensing fiber, or a DC magnetic field or current. The present invention takes advantage of the change in bias angle by identifying a preferred channel from the two sensing axes of the output fiber, based on the manner in which these axes respond to the change in bias angle. One of the axes will exhibit a change in sensitivity that exacerbates the change in sensitivity due to the Verdet constant, while the other channel will exhibit a change that complements, or compensates for, the change in sensitivity due to the Verdet constant. Once the preferred channel is identified, a polarizing fiber is attached to the output of the sensing coil, aligned to transmit the preferred channel to the optical detector.
摘要翻译：一种光纤，法拉第效应电流传感器（光电流传感器），由于对温度引起的Verdet常数的变化的补偿而具有改善的温度灵敏度。由于许多原因，光纤感测线圈可能会出现偏移角偏移，包括纤维的物理旋转，归因于感测线圈形状（Berry's phase）的表观圆形双折射，感测光纤中的圆形双折射或DC 磁场或电流。本发明通过基于这些轴对偏置角的改变的方式来识别来自输出光纤的两个感测轴的优选通道来利用偏置角的变化。其中一个轴会出现灵敏度的变化，这会加剧由于Verdet常数导致的灵敏度变化，而另一个通道会出现由于Verdet常数而导致的灵敏度变化的补偿或补偿。一旦识别出优选的通道，偏振光纤被附着到感测线圈的输出端，对准以将优选的通道传送到光学检测器。

6. 发明授权

US06834142B2 Optical grating-based filter 有权
标题翻译：基于光栅的滤光片
公开(公告)号：US06834142B2
公开(公告)日：2004-12-21
申请号：US10098890
申请日：2002-03-15
申请人： Timothy J. Bailey , Martin A. Putnam , Jay W. Dawson , Joseph Pinto , James S. Sirkis , Paul S. Szczepanek
发明人： Timothy J. Bailey , Martin A. Putnam , Jay W. Dawson , Joseph Pinto , James S. Sirkis , Paul S. Szczepanek
IPC分类号： G02B602
CPC分类号： G02B6/2932 , G02B6/02176 , G02B6/0218 , G02B6/022 , G02B6/266 , G02B6/29322 , G02B6/29323 , G02B6/29395 , G02B6/29398
摘要： An optical filter for filtering a spectral profile of an optical signal for providing an output signal having a desire gain profile, such as a flatten gain profile. The filter comprises an optical waveguide that includes a core disposed within a cladding having an outer dimension greater than 0.3 mm. A Bragg grating is imparted or written in the core of the waveguide that attenuates the received optical input signal in accordance with a defined reflection or transmission filter profile. The Bragg grating may be a slanted grating. The filter profile is complementary to the spectral gain profile of the input signal to provide an output signal having a substantially flat spectral profile of a desired wavelength band. The cladding of the waveguide may have a mechanically advantageous outer geometry (e.g., a “dogbone” shape) for allowing an axial compressive force to tune the Bragg grating. The waveguide may be package within an athermal device, which tunes the grating to compensate for temperature dependent changes. Further, the waveguide may be packaged in a tuning device to selective tune the gratings to shift the center wavelength of the spectral profile of the filter, or to change the shape of the filter profile.
摘要翻译：一种滤光器，用于对光信号的光谱分布进行滤波，以提供具有期望增益分布的输出信号，例如平坦增益分布。滤波器包括光波导，其包括设置在具有大于0.3mm的外部尺寸的包层内的芯。布拉格光栅被传递或写入波导的核心，根据定义的反射或透射滤波器轮廓衰减接收到的光输入信号。布拉格光栅可以是倾斜光栅。滤波器曲线与输入信号的频谱增益分布互补，以提供具有期望波长带的基本上平坦的谱分布的输出信号。波导的包层可以具有机械有利的外部几何形状（例如，“狗骨”形状），用于允许轴向压缩力调谐布拉格光栅。波导可以封装在无热器件中，其调谐光栅以补偿温度依赖的变化。此外，波导可以封装在调谐装置中以选择性调谐光栅以移动滤光器的光谱分布的中心波长，或者改变滤光片的形状。

7. 发明授权

US07286575B2 Diode pumped alkali vapor fiber laser 失效
标题翻译：二极管泵浦碱蒸汽光纤激光器
公开(公告)号：US07286575B2
公开(公告)日：2007-10-23
申请号：US11447391
申请日：2006-06-05
申请人： Stephen A. Payne , Raymond J. Beach , Jay W. Dawson , William F. Krupke
发明人： Stephen A. Payne , Raymond J. Beach , Jay W. Dawson , William F. Krupke
IPC分类号： H01S3/30
CPC分类号： H01S3/06754 , H01S3/06729 , H01S3/06741 , H01S3/10092 , H01S3/227
摘要： A method and apparatus is provided for producing near-diffraction-limited laser light, or amplifying near-diffraction-limited light, in diode pumped alkali vapor photonic-band-gap fiber lasers or amplifiers. Laser light is both substantially generated and propagated in an alkali gas instead of a solid, allowing the nonlinear and damage limitations of conventional solid core fibers to be circumvented. Alkali vapor is introduced into the center hole of a photonic-band-gap fiber, which can then be pumped with light from a pump laser and operated as an oscillator with a seed beam, or can be configured as an amplifier.
摘要翻译：提供了一种用于在二极管泵浦碱性蒸汽光子带隙光纤激光器或放大器中产生近衍射极限激光或放大近衍射极限光的方法和装置。激光基本上产生并在碱性气体中传播而不是固体，从而允许规避常规实芯纤维的非线性和损伤限制。碱性蒸汽被引入到光子带隙光纤的中心孔中，然后可以用来自泵浦激光器的光泵浦并且作为具有种子束的振荡器来操作，或者可以被配置为放大器。

8. 发明授权

US07082148B2 Diode pumped alkali vapor fiber laser 失效
标题翻译：二极管泵浦碱蒸汽光纤激光器
公开(公告)号：US07082148B2
公开(公告)日：2006-07-25
申请号：US10679538
申请日：2003-09-30
申请人： Stephen A. Payne , Raymond J. Beach , Jay W. Dawson , William F. Krupke
发明人： Stephen A. Payne , Raymond J. Beach , Jay W. Dawson , William F. Krupke
IPC分类号： H01S3/22
CPC分类号： H01S3/06754 , H01S3/06729 , H01S3/06741 , H01S3/10092 , H01S3/227
摘要： A method and apparatus is provided for producing near-diffraction-limited laser light, or amplifying near-diffraction-limited light, in diode pumped alkali vapor photonic-band-gap fiber lasers or amplifiers. Laser light is both substantially generated and propagated in an alkali gas instead of a solid, allowing the nonlinear and damage limitations of conventional solid core fibers to be circumvented. Alkali vapor is introduced into the center hole of a photonic-band-gap fiber, which can then be pumped with light from a pump laser and operated as an oscillator with a seed beam, or can be configured as an amplifier.
摘要翻译：提供了一种用于在二极管泵浦碱性蒸汽光子带隙光纤激光器或放大器中产生近衍射极限激光或放大近衍射限制光的方法和装置。激光基本上产生并在碱性气体中传播而不是固体，从而允许规避常规固体芯纤维的非线性和损伤限制。碱性蒸汽被引入到光子带隙光纤的中心孔中，然后可以用来自泵浦激光器的光泵浦并且作为具有种子束的振荡器来操作，或者可以被配置为放大器。

9. 发明授权

US5504771A Fiber-optic ring laser 失效
标题翻译：光纤环激光
公开(公告)号：US5504771A
公开(公告)日：1996-04-02
申请号：US971080
申请日：1992-11-03
申请人： Kerry J. Vahala , Namkyoo Park , Jay W. Dawson , Steve Sanders
发明人： Kerry J. Vahala , Namkyoo Park , Jay W. Dawson , Steve Sanders
IPC分类号： H01S3/067 , H01S3/098 , H01S3/106 , H01S3/083
CPC分类号： H01S3/06791 , H01S2301/02 , H01S3/08036 , H01S3/1062
摘要： A single-frequency fiber-optic ring laser exhibits improved frequency stability, reduced laser intensity noise, broad tunability and narrow linewidth. The fiber-optic ring laser includes a ring-resonator with a length of single-mode optical fiber, a gain medium of rare earth-doped fiber, a broad-band fiber Fabry-Perot filter for wavelength tuning of the laser, a narrow-band fiber Fabry-Perot filter for suppression of longitudinal ring modes and an optical isolator for preventing interetalon interactions between the tandem fiber Fabry-Perot filters. Selective positioning of the tandem fiber Fabry-Perot filters, relative to the ring laser's gain medium and output coupler, results in laser intensity noise reduction to the standard quantum limit.
摘要翻译：单频光纤环形激光器具有改进的频率稳定性，降低激光强度噪声，宽可调性和窄线宽。光纤环形激光器包括具有单模光纤长度的环形谐振器，稀土掺杂光纤的增益介质，用于激光波长调谐的宽带光纤法布里 - 珀罗滤波器，用于抑制纵向环模式的光纤法布里 - 珀罗滤光器和用于防止串联光纤法布里 - 珀罗滤光片之间的相互作用的光隔离器。串联光纤Fabry-Perot滤波器的选择性相对于环形激光器的增益介质和输出耦合器，导致激光强度噪声降低到标准量子极限。

10. 发明授权

US07907810B2 Optical fiber having wave-guiding rings 有权
标题翻译：具有波导环的光纤
公开(公告)号：US07907810B2
公开(公告)日：2011-03-15
申请号：US11809112
申请日：2007-05-30
申请人： Michael J. Messerly , Jay W. Dawson , Raymond J. Beach , Christopher P. J. Barty
发明人： Michael J. Messerly , Jay W. Dawson , Raymond J. Beach , Christopher P. J. Barty
IPC分类号： G02B6/02
CPC分类号： G02B6/03666 , G02B6/03611 , H01S3/06708
摘要： A waveguide includes a cladding region that has a refractive index that is substantially uniform and surrounds a wave-guiding region that has an average index that is close to the index of the cladding. The wave-guiding region also contains a thin ring or series of rings that have an index or indices that differ significantly from the index of the cladding. The ring or rings enable the structure to guide light.
摘要翻译：波导包括具有基本均匀的折射率并且包围具有接近包层的折射率的平均折射率的波导区域的包层区域。波导区域还包含具有与包层指数显着不同的指数或指数的薄环或一系列环。环或环使结构能够引导光。

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