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21. 发明授权

US06792009B2 Tunable grating-based channel filter parking device 有权
标题翻译：可调光栅通道滤波器停车装置
公开(公告)号：US06792009B2
公开(公告)日：2004-09-14
申请号：US10226944
申请日：2002-08-22
申请人： Martin A. Putnam , Alan D. Kersey , Timothy J. Bailey
发明人： Martin A. Putnam , Alan D. Kersey , Timothy J. Bailey
IPC分类号： H01S330
CPC分类号： G02B6/02204 , G01D5/35316 , G02B6/02 , G02B6/02042 , G02B6/02085 , G02B6/02176 , G02B6/0218 , G02B6/022 , G02B6/266 , G02B6/2932 , G02B6/29322 , G02B6/29383 , G02B6/29395 , G02B6/29398 , G02B6/4214 , G02F1/011 , G02F1/0115 , G02F1/0128 , G02F2201/307
摘要： An optical filter, including a Bragg grating, is compression tuned such that when under one compressional load (or no load) the grating has a first profile and under a second compressional load the grating has a second profile. One application is to allow the grating filter function to be parked optically between channels of a WDM or DWDM optical system.
摘要翻译：包括布拉格光栅的滤光器被压缩调谐，使得当在一个压缩负载（或无负载）下时，光栅具有第一轮廓，并且在第二压缩载荷下，光栅具有第二轮廓。一个应用是允许光栅滤波器功能在WDM或DWDM光学系统的通道之间光学停放。

22. 发明授权

US06621957B1 Temperature compensated optical device 有权
标题翻译：温度补偿光学器件
公开(公告)号：US06621957B1
公开(公告)日：2003-09-16
申请号：US09699940
申请日：2000-10-30
申请人： James M. Sullivan , Timothy J. Bailey , Robert N. Brucato , Thomas W. Engel , Mark R. Fernald , Richard T. Jones , Alan D. Kersey , Trevor MacDougall , Matthew B. Miller , Martin A. Putnam , Paul E. Sanders , James S. Sirkis
发明人： James M. Sullivan , Timothy J. Bailey , Robert N. Brucato , Thomas W. Engel , Mark R. Fernald , Richard T. Jones , Alan D. Kersey , Trevor MacDougall , Matthew B. Miller , Martin A. Putnam , Paul E. Sanders , James S. Sirkis
IPC分类号： G02B634
CPC分类号： G02F1/0115 , G02B6/0218 , H01S3/0675 , H01S3/1028
摘要： A temperature compensated optical device includes a compression-tuned glass element 10 having a Bragg grating 12 therein, a compensating material spacer 26 and an end cap 28 all held within an outer shell 30. The element 10, end cap 28 and shell 30 are made of a material having a low coefficient of thermal expansion (CTE), e.g., silica, quartz, etc. and the spacer 26 is made of a material having a higher CTE, e.g., metal, Pyrex®, ceramic, etc. The material and length L5 of the spacer 26 is selected to offset the upward grating wavelength shift due to temperature. As temperature rises, the spacer 26 expands faster than the silica structure causing a compressive strain to be exerted on the element 10, which shifts the wavelength of the grating 12 down to balance the intrinsic temperature induces wavelength shift up. As a result, the grating 12 wavelength is substantially unchanged over a wide temperature range. The element 10 includes either an optical fiber having at least one Bragg grating 12 impressed therein encased within and fused to at least a portion of a glass capillary tube or a large diameter waveguide (or cane) with a grating 12 having a core 11 and a wide cladding, which does not buckle over a large range of compressive axial strains. The element may have a “dogbone” shape to amplify compressive strain on the grating 12. The device 8 may also be placed in an axially tunable system that allows the wavelength to be dynamically tuned while remaining athermal. In addition to a grating, the device may be an athermal laser, DFB laser, etc. Also, the entire device 8 may be all made of monolithic glass materials.
摘要翻译：温度补偿光学器件包括其中具有布拉格光栅12的压缩调谐玻璃元件10，补偿材料间隔件26和端盖28，所述补偿材料间隔件26和端盖28都保持在外壳30内。元件10，端帽28和壳体30被制成具有低热膨胀系数（CTE）的材料，例如二氧化硅，石英等，并且间隔物26由具有较高CTE（例如金属，Pyrex，陶瓷等）的材料制成。选择间隔件26的材料和长度L5以抵消由于温度引起的向上光栅波长偏移。随着温度升高，间隔件26比二氧化硅结构膨胀得更快，导致施加在元件10上的压缩应变，其将光栅12的波长向下移动以平衡本征温度，从而引起波长向上移动。结果，光栅12的波长在宽温度范围内基本上不变。元件10包括具有至少一个布拉格光栅12的光纤，该光纤封装在玻璃毛细管或大直径波导（或甘蔗）的至少一部分内并与其融合，其中光栅12具有芯11和宽的包层，其在大范围的压缩轴向应变下不扣合。元件可以具有“狗骨”形状以放大光栅12上的压缩应变。器件8也可以放置在轴向可调谐系统中，其允许波长被动态调谐而保持不耐热。除了光栅之外，该器件可以是无热激光器，DFB激光器等。此外，整个器件8可以全部由单片玻璃材料制成。

23. 发明授权

US06594410B2 Wide range tunable optical filter 有权
公开(公告)号：US06594410B2
公开(公告)日：2003-07-15
申请号：US09751589
申请日：2000-12-29
申请人： Alan D. Kersey , Michael A. Davis , Martin A. Putnam , Timothy J. Bailey
发明人： Alan D. Kersey , Michael A. Davis , Martin A. Putnam , Timothy J. Bailey
IPC分类号： G02B626
CPC分类号： G02B6/4215 , G02B6/2932 , G02B6/29322 , G02B6/29395 , H04J14/0209 , H04J14/021 , H04J14/0213 , H04J14/0216 , H04J14/0219
摘要： A tunable optical filter filters is provided that has a pair of tunable Bragg grating units optically coupled to respective ports of a 4-port circulator for filtering a selected wavelength band or channel of light from a DWDM input light. Each grating unit includes an array of Bragg gratings written or embedded within a respective tunable optical element to provide a tunable optical filter that functions over a wide spectral range greater than the tunable range of each grating element. The reflection wavelengths of the array of gratings of each respective grating element is spaced at a predetermined spacing, such that when a pair of complementary gratings of the grating elements are aligned, the other complementary gratings are misaligned. Both of the optical elements may be tuned to selectively align each complementary grating over each corresponding spectral range.

24. 发明授权

US06519388B1 Tube-encased fiber grating 有权
标题翻译：管状光纤光栅
公开(公告)号：US06519388B1
公开(公告)日：2003-02-11
申请号：US09455865
申请日：1999-12-06
申请人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , Michael A. Davis , Peter Ogle , Alan D. Kersey , Martin A. Putnam , Robert N. Brucato , Paul E. Sanders
发明人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , Michael A. Davis , Peter Ogle , Alan D. Kersey , Martin A. Putnam , Robert N. Brucato , Paul E. Sanders
IPC分类号： G02B634
CPC分类号： G02B6/022 , G02B6/0218
摘要： A tube-encased fiber grating includes an optical fiber 10 having at least one Bragg grating 12 impressed therein which is embedded within a glass capillary tube 20. Light 14 is incident on the grating 12 and light 16 is reflected at a reflection wavelength &lgr;1. The shape of the tube 20 may be other geometries (e.g., a “dogbone” shape) and/or more than one concentric tube may be used or more than one grating or pair of gratings may be used. The fiber 10 may be doped at least between a pair of gratings 150,152, encased in the tube 20 to form a tube-encased compression-tuned fiber laser or the grating 12 or gratings 150,152 may be constructed as a tunable DFB fiber laser encased in the tube 20. Also, the tube 20 may have an inner region 22 which is tapered away from the fiber 10 to provide strain relief for the fiber 10, or the tube 20 may have tapered (or fluted) sections 27 which have an outer geometry that decreases down to the fiber 10 and provides added fiber pull strength. Also, the tube-encased grating 12 exhibits lower mode coupling from the fiber core to the cladding modes due to the increased diameter of the cladding where the tube 20 is fused to the fiber 10 where the grating is located 12.
摘要翻译：管状光纤光栅包括光纤10，其具有嵌入其中的至少一个布拉格光栅12，该布拉格光栅12嵌入玻璃毛细管20内。光14入射到光栅12上，光16以反射波长lambd1反射。管20的形状可以是其他几何形状（例如，“狗骨”形状）和/或可以使用多于一个的同心管，或者可以使用多于一个的光栅或一对光栅。纤维10可以至少掺杂在一对光栅150,152之间，封装在管20中以形成管封装的压缩调谐光纤激光器，或者光栅12或光栅150,152可被构造为包含在该光纤12中的可调DFB光纤激光器。管20也可以具有内部区域22，该内部区域22远离纤维10逐渐变细，以为纤维10提供应变消除，或者管20可以具有锥形（或凹槽）部分27，其具有外部几何形状降低到纤维10并提供增加的纤维拉伸强度。此外，由于包层的直径增加，管20被熔合到光栅位于12处的光纤10，管状光栅12表现出从纤维芯到包层模式的较低模式耦合。

25. 发明授权

US4871226A Mounting of optical fibers to integrated optical chips 失效
标题翻译：将光纤安装到集成光学芯片上
公开(公告)号：US4871226A
公开(公告)日：1989-10-03
申请号：US103325
申请日：1987-10-01
申请人： Daniel P. Courtney , Timothy J. Bailey
发明人： Daniel P. Courtney , Timothy J. Bailey
IPC分类号： G02B6/122 , G02B6/30 , G02B6/42
CPC分类号： G02B6/4212 , G02B6/30 , G02B6/4207
摘要： A fiber carrier provides an effective coupling means between a cleaved facing surface of an optical fiber and a light port in a mounting surface of an integrated optical device. Both the fiber carrier and the integrated optical device have an anisotropic thermal expansion property along the same known optic axis and both are substantially similar in magnitude to each other. The fiber carrier is positioned with the integrated optical device so that both the carrier optic axis is parallel to the device optic axis and so that an auxiliary surface of the carrier is parallel to the device mounting surface. The optical fiber is then bonded to the fiber carrier so that the plane of the optical fiber cleaved facing surface lies in the plane of the carrier auxiliary surface. The carrier auxiliary surface is finally bonded to the device mounting surface so that the optical fiber cleaved facing surface is placed in registration with the light port in the device mounting surface.

26. 发明申请

US20140301902A1 OPTIMIZING ACOUSTIC EFFICIENCY OF A SONIC FILTER OR SEPARATOR 有权
标题翻译：优化SONIC滤波器或分离器的声学效率
公开(公告)号：US20140301902A1
公开(公告)日：2014-10-09
申请号：US13983398
申请日：2012-02-06
申请人： Mark R. Fernald , Timothy J. Bailey
发明人： Mark R. Fernald , Timothy J. Bailey
IPC分类号： B01J19/10
CPC分类号： B01J19/10 , B01J2219/0877 , B03D1/028 , G01F23/2961 , G01F23/2967
摘要： Apparatus features a container and a transducer. The container is made of a selected material and has a container wall with a selected thickness, and configured to hold a fluid therein. The transducer is configured on the outside of the container wall, and is also configured to provide a standing wave into the fluid. The selected thickness and material of the container wall is chosen to ensure about a ½ wavelength of a desired frequency exists within the container wall, so as to substantially reduce back reflections toward the transducer due to any mismatch in acoustic impedance at the interface between the container wall and the fluid, and so as to substantially maximize the amount of energy delivered to the fluid, thus improving the operating efficiency of the apparatus.
摘要翻译：装置具有容器和换能器。容器由选定的材料制成并且具有选定厚度的容器壁，并且构造成在其中容纳流体。换能器构造在容器壁的外侧，并且还构造成将静音提供到流体中。选择容器壁的所选厚度和材料以确保在容器壁内存在所需频率的1/2波长，从而基本上减小朝向换能器的反射反射，因为在容器之间的界面处的声阻抗的任何失配壁和流体，并且基本上使输送到流体的能量的量最大化，从而提高了设备的操作效率。

27. 发明授权

US08111963B2 Large diameter optical waveguide, grating and laser 有权
标题翻译：大直径光波导，光栅和激光
公开(公告)号：US08111963B2
公开(公告)日：2012-02-07
申请号：US12199584
申请日：2008-08-27
申请人： Martin A. Putnam , Robert N. Brucato , Paul E. Sanders , Timothy J. Bailey , James M. Sullivan , Alan D. Kersey
发明人： Martin A. Putnam , Robert N. Brucato , Paul E. Sanders , Timothy J. Bailey , James M. Sullivan , Alan D. Kersey
IPC分类号： G02B6/36
CPC分类号： G02B6/022 , G02B6/02 , G02B6/02042 , H01S3/06708 , H01S3/06729 , H01S3/06754
摘要： A large diameter optical waveguide, grating, and laser includes a waveguide having at least one core surrounded by a cladding, the core propagating light in substantially a few transverse spatial modes; and having an outer waveguide dimension of said waveguide being greater than about 0.3 mm. At least one Bragg grating may be impressed in the waveguide. The waveguide may be axially compressed which causes the length of the waveguide to decrease without buckling. The waveguide may be used for any application where a waveguide needs to be compression tuned. Also, the waveguide exhibits lower mode coupling from the core to the cladding and allows for higher optical power to be used when writing gratings without damaging the waveguide. The waveguide may resemble a short “block” or a longer “cane” type, depending on the application and dimensions used.
摘要翻译：大直径光波导，光栅和激光器包括具有由包层围绕的至少一个核的波导，所述核以基本上几个横向空间模式传播光; 并且具有所述波导的外波导尺寸大于约0.3mm。至少一个布拉格光栅可以印在波导中。波导可以被轴向压缩，这导致波导的长度减小而没有弯曲。波导可以用于波导需要被压缩调谐的任何应用。此外，波导表现出从芯到包层的较低模式耦合，并且允许在写入光栅时使用更高的光功率而不损坏波导。根据使用的应用和尺寸，波导可能类似于短的“块”或更长的“手杖”类型。

28. 发明授权

US07895903B2 Method and apparatus for measuring a parameter of a fluid flowing within a pipe 有权
标题翻译：用于测量在管道内流动的流体的参数的方法和装置
公开(公告)号：US07895903B2
公开(公告)日：2011-03-01
申请号：US12620796
申请日：2009-11-18
申请人： Timothy J. Bailey , Mark R. Fernald
发明人： Timothy J. Bailey , Mark R. Fernald
IPC分类号： G01F1/60 , G01F23/00
CPC分类号： G01F1/7082 , G01F1/666 , G01F1/667 , G01F1/704 , G01F1/712 , G01F1/74
摘要： A method and apparatus for determining at least one characteristic of a fluid flowing within a pipe is provided and includes at least one sensing device. The at least one sensing device includes a first sensor segment having a first segment polarity and being associated with a first outer portion of the pipe and a second sensor segment having a second segment polarity and being associated with a second outer portion of the pipe, wherein the first sensor segment and the second sensor segment generate sensor data responsive to the fluid flowing within the pipe. The apparatus further includes a processing device communicated with the at least one sensing device, wherein the processing device receives the sensor data and processes the sensor data to determine the at least one characteristic of the fluid.
摘要翻译：提供了一种用于确定在管内流动的流体的至少一种特性的方法和装置，并且包括至少一个感测装置。所述至少一个感测装置包括具有第一段极性并与管的第一外部部分相关联的第一传感器段和具有第二段极性并与管的第二外部部分相关联的第二传感器段，其中第一传感器段和第二传感器段响应于在管内流动的流体产生传感器数据。所述装置还包括与所述至少一个感测装置通信的处理装置，其中所述处理装置接收所述传感器数据并处理所述传感器数据以确定所述流体的所述至少一个特性。

29. 发明授权

US07474966B2 Apparatus having an array of piezoelectric film sensors for measuring parameters of a process flow within a pipe 有权
标题翻译：具有用于测量管道内的工艺流程的参数的压电膜传感器阵列的装置
公开(公告)号：US07474966B2
公开(公告)日：2009-01-06
申请号：US11521627
申请日：2006-09-14
申请人： Mark R. Fernald , Michael A. Davis , Alan D. Kersey , Douglas Loose , Timothy J. Bailey
发明人： Mark R. Fernald , Michael A. Davis , Alan D. Kersey , Douglas Loose , Timothy J. Bailey
IPC分类号： G06F19/00
CPC分类号： G01F1/712 , G01F1/74
摘要： A apparatus 10,110,170 is provided that measures the speed of sound and/or vortical disturbances propagating in a single phase fluid flow and/or multiphase mixture to determine parameters, such as mixture quality, particle size, vapor/mass ratio, liquid/vapor ratio, mass flow rate, enthalpy and volumetric flow rate of the flow in a pipe, by measuring acoustic and/or dynamic pressures. The apparatus includes a spatial array of unsteady pressure sensors 15-18 placed at predetermined axial locations x1-xN disposed axially along the pipe 14. The pressure sensors 15-18 provide acoustic pressure signals P1(t)-PN(t) to a signal processing unit 30 which determines the speed of sound amix propagating through of the process flow 12 flowing in the pipe 14. The pressure sensors are piezoelectric film sensors that are mounted or clamped onto the outer surface of the pipe at the respective axial location.
摘要翻译：提供了一种装置10,110,170，其测量在单相流体流和/或多相混合物中传播的声速和/或涡流干扰的速度，以确定参数，例如混合质量，粒度，蒸气/质量比，液体/蒸气比，质量流量，管道中流量的焓和体积流量，通过测量声学和/或动态压力。该装置包括放置在沿管14轴向设置的预定轴向位置x1-xN处的不稳定压力传感器15-18的空间阵列。压力传感器15-18向信号提供声压信号P1（t）-PN（t）处理单元30，其确定在管14中流动的工艺流程12传播的声音amix的速度。压力传感器是压电膜传感器，其在相应的轴向位置处安装或夹紧在管的外表面上。

30. 发明授权

US07330797B2 Apparatus and method for measuring settlement of solids in a multiphase flow 有权
标题翻译：用于测量多相流中固体沉降的装置和方法
公开(公告)号：US07330797B2
公开(公告)日：2008-02-12
申请号：US11592915
申请日：2006-11-03
申请人： Timothy J. Bailey , Mark R. Fernald
发明人： Timothy J. Bailey , Mark R. Fernald
IPC分类号： G01F23/00
CPC分类号： G01F1/704 , G01F1/74
摘要： A method and apparatus for measuring a parameter of a flow passing through a pipe is provided, wherein the apparatus includes at least two spatial array of sensors disposed at different axial locations along the pipe, wherein each of the sensors provide a signal indicative of unsteady pressure created by coherent structures convecting with the flow within the pipe at a corresponding axial location of the pipe. The apparatus also includes a signal processor configured to determine the flow rate at the circumference location of each sensor array in response to the respective measured unsteady pressures. The signal processor compares the velocity of the flow at each respective location and provides a signal indicative the presence of solids settled at the bottom of the pipe and/or the level of the settled solids in the pipe, in response to an uncharacteristic increase in the velocity of a lower portion of the flow in comparison to the velocity measured above the lower portion of the flow.
摘要翻译：提供了一种用于测量通过管道的流量的参数的方法和装置，其中所述装置包括设置在沿着管道的不同轴向位置处的至少两个传感器的空间阵列，其中每个传感器提供指示不稳定压力的信号通过在管道中相应的轴向位置处的管内流动的相干结构产生。该装置还包括信号处理器，其被配置为响应于各自测量的不稳定压力来确定每个传感器阵列的圆周位置处的流速。信号处理器将每个相应位置处的流速进行比较，并提供指示在管的底部沉降的固体的存在和/或管中的沉降固体的水平的信号，以响应于与在流动的下部上方测量的速度相比，流动的下部的速度。

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