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11. 发明授权

US06422084B1 Bragg grating pressure sensor 有权
标题翻译：布拉格光栅压力传感器
公开(公告)号：US06422084B1
公开(公告)日：2002-07-23
申请号：US09455867
申请日：1999-12-06
申请人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , James R. Dunphy , Michael A. Davis , Christopher J. Wright , 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 , James R. Dunphy , Michael A. Davis , Christopher J. Wright , Alan D. Kersey , Martin A. Putnam , Robert N. Brucato , Paul E. Sanders
IPC分类号： G01L900
CPC分类号： G01L11/025
摘要： A fiber grating pressure sensor includes an optical sensing element 20, 600 which includes an optical fiber 10 having a Bragg grating 12 impressed therein which is encased within and fused to at least a portion of a glass capillary tube 20 and/or a large diameter waveguide grating 600 having a core and a wide cladding and which has an outer transverse dimension of at least 0.3 mm. Light 14 is incident on the grating 12 and light 16 is reflected from the grating 12 at a reflection wavelength &lgr;1. The sensing element 20, 600 may be used by itself as a sensor or located within a housing 48, 60, 90, 270, 300. When external pressure P increases, the grating 12 is compressed and the reflection wavelength &lgr;1 changes. The shape of the sensing element 20, 600 may have other geometries, e.g., a “dogbone” shape, so as to enhance the sensitivity of shift in &lgr;1 due to applied external pressure and may be fused to an outer shell 50. At least a portion of the sensing element may be doped between a pair of gratings 150, 152, to form a compression-tuned laser or the grating 12 or gratings 150, 152 may be constructed as a tunable DFB laser. Also, the axial ends of element 20, 600 where the fiber 10 exits the tube 20 may have an inner tapered region 22 and/or a protruding tapered (or fluted) axial section 27 to provide strain relief or improved pull strength for the fiber 10. A temperature grating 270 may be used to measure temperature and allow for a temperature-corrected pressure measurement. The sensor may be suspended within an outer housing 112, by a fluid, spacers, or other means. The invention may also be used as a force transducer.
摘要翻译：光纤光栅压力传感器包括光学感测元件20,600，光学传感元件20,600包括光纤10，该光纤10具有印刷在其中的布拉格光栅12，该光纤10包围玻璃毛细管20和/或大直径波导的至少一部分光栅600具有芯和宽包层，并且具有至少0.3mm的外横向尺寸。光14入射到光栅12上，光16以反射波长lambd1从光栅12反射。感测元件20,600可以自身用作传感器或位于壳体48,60,90,270,3300内。当外部压力P增加时，光栅12被压缩并且反射波长lambd1改变。感测元件20,600的形状可以具有其他几何形状，例如“狗骨”形状，以便增强由于施加的外部压力而导致的羔羊皮1偏移的灵敏度，并且可以将其熔合到外壳50上。至少感测元件的一部分可以掺杂在一对光栅150,152之间以形成压缩调谐的激光器，或者光栅12或光栅150,152可被构造为可调DFB激光器。此外，纤维10离开管20的元件20,600的轴向端部可以具有内锥形区域22和/或突出的锥形（或槽纹）轴向部分27，以提供应变消除或改进的纤维10的拉伸强度可以使用温度光栅270来测量温度并允许进行温度校正的压力测量。传感器可以通过流体，间隔件或其他装置悬挂在外壳体112内。本发明也可以用作力传感器。

12. 发明授权

US07386204B1 Optical filter having a shaped filter function 有权
标题翻译：具有成型过滤功能的滤光器
公开(公告)号：US07386204B1
公开(公告)日：2008-06-10
申请号：US09648525
申请日：2000-08-26
申请人： Michael A. Davis , Alan D. Kersey , Martin A. Putnam , Timothy J. Bailey
发明人： Michael A. Davis , Alan D. Kersey , Martin A. Putnam , Timothy J. Bailey
IPC分类号： G02B6/34
CPC分类号： G02B6/4215 , G02B6/022 , G02B6/2932 , G02B6/29322 , G02B6/29395 , H04J14/02
摘要： An optical filter, including a pair of Bragg grating units optically coupled to respective ports of a circulator, is provided for filtering a selected wavelength band of light from a DWDM input light. Each grating unit includes a respective tunable optical element, which have a reflective element, such as a Bragg grating. Generally, one grating unit filters a selected wavelength band of light and reflects the selected wavelength band to the other grating unit, which reflects a portion of the reflected wavelength band to an output of the optical filter. This double reflection of the selected wavelength band provides an optical filter having an effective filter function that is equal to the product of the individual filter functions of the grating units. To create a desired effective filter function, the gratings may be written to have different filter functions or grating profiles. One or both of the grating units may also be tunable to selectively create, tailor, shape or change the effective filter function of the optical filter in response to a control signal by offsetting the reflection wavelengths of the gratings, having different grating profiles.
摘要翻译：提供了一种光学滤波器，其包括光耦合到环行器的相应端口的一对布拉格光栅单元，用于对来自DWDM输入光的所选择的波长带进行滤波。每个光栅单元包括各自的可调光学元件，其具有诸如布拉格光栅的反射元件。通常，一个光栅单元对所选择的波长带进行滤光并将所选择的波长带反射到将反射波长带的一部分反射到滤光器的输出的另一光栅单元。所选波长带的这种双重反射提供了具有等于光栅单元的各个滤波器功能的乘积的有效滤波器功能的滤光器。为了创建期望的有效滤波器功能，可以将光栅写入以具有不同的滤波器功能或光栅轮廓。光栅单元中的一个或两个也可以是可调谐的，以通过偏移具有不同光栅轮廓的光栅的反射波长来响应于控制信号选择性地创建，调整，形状或改变滤光器的有效滤光器功能。

13. 发明授权

US06229827B1 Compression-tuned bragg grating and laser 有权
标题翻译：压缩调谐布拉格光栅和激光
公开(公告)号：US06229827B1
公开(公告)日：2001-05-08
申请号：US09456112
申请日：1999-12-06
申请人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , Michael A. Davis , Robert N. Brucato , Martin A. Putnam , Alan D. Kersey , Paul E. Sanders
发明人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , Michael A. Davis , Robert N. Brucato , Martin A. Putnam , Alan D. Kersey , Paul E. Sanders
IPC分类号： H01S310
CPC分类号： G02F1/0115 , G02B6/0218 , G02B6/022 , G02F1/0128 , G02F2201/307
摘要： A compression-tuned bragg grating includes a tunable optical element 20,600 which includes either an optical fiber 10 having at least one Bragg grating 12 impressed therein encased within and fused to at least a portion of a glass capillary tube 20 or a large diameter waveguide grating 600 having a core and a wide cladding. Light 14 is incident on the grating 12 and light 16 is reflected at a reflection wavelength &lgr;1. The tunable element 20,600 is axially compressed which causes a shift in the reflection wavelength of the grating 12 without buckling the element. The shape of the element may be other geometries (e.g., a “dogbone” shape) and/or more than one grating or pair of gratings may be used and more than one fiber 10 or core 612 may be used. At least a portion of the element may be doped between a pair of gratings 150,152, to form a compression-tuned laser or the grating 12 orgratings 150,152 may be constructed as a tunable DFB laser. Also, the element 20 may have an inner tapered region 22 or tapered (or fluted) sections 27. The compression may be done by a PZT, stepper motor or other actuator or fluid pressure.
摘要翻译：压缩调谐布拉格光栅包括可调谐光学元件20,600，其包括光纤10，其具有印刷在其中的至少一个布拉格光栅12，该布拉格光栅12被封装在玻璃毛细管20或大直径波导光栅600的至少一部分中具有核心和广泛的包层。光14入射到光栅12上，光16以反射波长lambd1反射。可调谐元件20,600被轴向压缩，这导致光栅12的反射波长的偏移而不使元件弯曲。元件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光栅或一对光栅，并且可以使用多于一个的光纤10或核612。元件的至少一部分可以掺杂在一对光栅150,152之间，以形成压缩调谐的激光器，或者光栅12或格栅化器150,152可被构造为可调DFB激光器。此外，元件20可以具有内锥形区域22或锥形（或凹槽）部分27.压缩可以由PZT，步进电动机或其他致动器或流体压力来实现。

14. 发明授权

US06813013B2 Pressure-isolated bragg grating temperature sensor 有权
标题翻译：压力隔离布拉格光栅温度传感器
公开(公告)号：US06813013B2
公开(公告)日：2004-11-02
申请号：US10193876
申请日：2002-07-12
申请人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , Richard T. Jones , Christopher J. Wright , 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 , Richard T. Jones , Christopher J. Wright , Alan D. Kersey , Martin A. Putnam , Robert N. Brucato , Paul E. Sanders
IPC分类号： G01N2100
CPC分类号： G01K11/3206 , G01D5/35316 , G01K5/52
摘要： A pressure-isolated Bragg grating temperature sensor includes an optical element, which includes an optical fiber having at least one Bragg grating disposed therein. The Bragg grating is encased within and fused to at least a portion of an inner glass capillary tube, or comprises a large diameter waveguide grating having a core and a wide cladding and having the grating disposed therein, encased within an outer tube to form a chamber. An extended portion of the sensing element that has the grating therein extends inwardly into the chamber, which allows the grating to sense temperature changes but isolates the grating from external pressure. More than one grating or pair of gratings may be used and more than one fiber or optical core may be used. At least a portion of the sensing element may be doped between a pair of gratings to form a temperature tuned laser, or the grating or gratings may be configured as a tunable DFB laser disposed in the sensing element.
摘要翻译：压力隔离布拉格光栅温度传感器包括光学元件，其包括其中布置有至少一个布拉格光栅的光纤。布拉格光栅被封装在内玻璃毛细管的至少一部分中并且熔合到内玻璃毛细管的至少一部分中，或包括具有芯和宽包层并且具有设置在其中的光栅的大直径波导光栅，该光栅包围在外管内以形成室。其中具有光栅的感测元件的延伸部分向内延伸到腔室中，这允许光栅感测温度变化，但是将光栅与外部压力隔离。可以使用多于一个的光栅或一对光栅，并且可以使用多于一个的光纤或光纤。感测元件的至少一部分可以掺杂在一对光栅之间以形成温度调节的激光器，或者光栅或光栅可被配置为设置在感测元件中的可调DFB激光器。

15. 发明申请

US20120082175A1 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：US20120082175A1
公开(公告)日：2012-04-05
申请号：US13316069
申请日：2011-12-09
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： H01S3/30 , G02B6/036 , H01S3/08 , G02B6/02
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。

16. 发明授权

US07437043B2 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：US07437043B2
公开(公告)日：2008-10-14
申请号：US11324759
申请日：2006-01-03
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： G02B6/02
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 10 having at least one core 12 surrounded by a cladding 14, the core propagating light in substantially a few transverse spatial modes; and having an outer waveguide dimension d2 of said waveguide being greater than about 0.3 mm. At least one Bragg grating 16 may be impressed in the waveguide 10. The waveguide 10 may be axially compressed which causes the length L of the waveguide 10 to decrease without buckling. The waveguide 10 may be used for any application where a waveguide needs to be compression tuned, e.g., compression-tuned fiber gratings and lasers or other applications. Also, the waveguide 10 exhibits lower mode coupling from the core 12 to the cladding 14 and allows for higher optical power to be used when writing gratings 16 without damaging the waveguide 10. The shape of the waveguide 10 may have other geometries (e.g., a “dogbone” shape) and/or more than one grating or pair of gratings may be used and more than one core may be used. The core and/or cladding 12,14 may be doped with a rare-earth dopant and/or may be photosensitive. At least a portion of the core 12 may be doped between a pair of gratings 50,52 to form a fiber laser or the grating 16 or may be constructed as a tunable DFB fiber laser or an interactive fiber laser within the waveguide 10. 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14围绕的至少一个芯12的波导10，芯以基本上几个横向空间模式传播光; 并且所述波导的外波导尺寸d 2大于约0.3mm。可以在波导10中施加至少一个布拉格光栅16.波导10可以被轴向压缩，这导致波导10的长度L在没有弯曲的情况下减小。波导管10可用于波导需要被压缩调谐的任何应用，例如压缩调谐的光纤光栅和激光器或其它应用。此外，波导10表现出从芯12到包层14的较低模式耦合，并且允许在写入光栅16时使用更高的光功率，而不损坏波导10.波导10的形状可具有其他几何形状（例如， “狗骨”形状）和/或可以使用多于一个的光栅或一对光栅，并且可以使用多于一个的核心。芯和/或包层12,14可掺杂稀土掺杂剂和/或可以是光敏的。芯12的至少一部分可以掺杂在一对光栅50,52之间以形成光纤激光器或光栅16，或者可以被构造为波导10内的可调DFB光纤激光器或交互光纤激光器。波导可能类似于短的“块”或更长的“手杖”类型，具体取决于所使用的应用和尺寸。

17. 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。

18. 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。

19. 发明授权

US07036379B2 Fluid diffusion resistant glass-encased optical sensor 有权
标题翻译：防流体扩散玻璃封装的光学传感器
公开(公告)号：US07036379B2
公开(公告)日：2006-05-02
申请号：US11104180
申请日：2005-04-12
申请人： Timothy J. Bailey , Mark R. Fernald , Alan D. Kersey , Trevor W. MacDougall , Martin A. Putnam
发明人： Timothy J. Bailey , Mark R. Fernald , Alan D. Kersey , Trevor W. MacDougall , Martin A. Putnam
IPC分类号： G01L9/00 , G01J1/34
CPC分类号： G01L1/246 , G01L9/0077 , G01L11/025
摘要： A fluid diffusion resistant tube-encased fiber grating pressure sensor includes an optical fiber 10 having a Bragg grating 12 impressed therein which is encased within a sensing element, such as a glass capillary shell 20. A fluid blocking coating 30 is disposed on the outside surface of the capillary shell to prevent the diffusion of fluids, such as water molecules from diffusing into the shell. The fluid diffusion resistant fiber optic sensor reduces errors caused by the diffusion of water into the shell when the sensor is exposed to harsh conditions.
摘要翻译：耐流体扩散的管封装的光纤光栅压力传感器包括一个光纤10，其中布置有布拉格光栅12，该光纤被包封在诸如玻璃毛细管壳20之类的传感元件内。流体阻挡涂层30设置在毛细管壳的外表面上，以防止诸如水分子之类的流体扩散到壳中。当传感器暴露在恶劣的条件下时，防止流体扩散的光纤传感器减少了由水扩散到壳体中引起的误差。

20. 发明授权

US06996316B2 Large diameter D-shaped optical waveguide and coupler 有权
标题翻译：大直径D型光波导和耦合器
公开(公告)号：US06996316B2
公开(公告)日：2006-02-07
申请号：US10098891
申请日：2002-03-18
申请人： Timothy J. Bailey , Robert N. Brucato , Alan D. Kersey , Martin A. Putnam , Paul Sanders , James Sullivan
发明人： Timothy J. Bailey , Robert N. Brucato , Alan D. Kersey , Martin A. Putnam , Paul Sanders , James Sullivan
IPC分类号： G02B6/02 , G02B6/34 , G02B6/22 , H01S3/067
CPC分类号： G01L1/242 , G02B6/02057 , G02B6/274 , G02B6/2817 , G02B6/2821 , G02B6/2826 , G02B6/29334 , G02B6/4214 , H01S3/06708 , H01S3/0675 , H01S3/094003 , H01S3/094007 , H01S3/094019
摘要： A large diameter D-shaped optical waveguide device 9, includes an optional circular waveguide portion 11 and a D-shaped waveguide portion 10 having at least one core 12 surrounded by a cladding 14. A portion of the waveguide device 9 has a generally D-shaped cross-section and has transverse waveguide dimension d2 greater than about 0.3 mm. At least one Bragg grating 16 may be impressed in the waveguide 10 and/or more than one grating or pair of gratings may be used and more than one core may be used. The device 9 provides a sturdy waveguide platform for coupling light into and out of waveguides and for attachment and alignment to other waveguides, for single and multi-core applications. The core and/or cladding 12,14 may be doped with a rare-earth dopant and/or may be photosensitive. At least a portion of the core 12 may be doped between a pair of gratings 50,52 to form a fiber laser or the grating 16 or may be constructed as a tunable DFB fiber laser or an interactive fiber laser within the waveguide 10. 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D形光波导器件9包括可选的圆形波导部分11和D形波导部分10，其具有被包层14包围的至少一个核心12。波导器件9的一部分具有大致D形的横截面并且横向波导尺寸d 2大于约0.3mm。可以在波导10中施加至少一个布拉格光栅16，和/或可以使用多于一个的光栅或一对光栅，并且可以使用多于一个的芯。器件9提供了一个坚固的波导平台，用于将光耦合到和流出波导，并用于连接和对准其他波导，用于单核和多核应用。芯和/或包层12,14可掺杂稀土掺杂剂和/或可以是光敏的。芯12的至少一部分可以掺杂在一对光栅50,52之间以形成光纤激光器或光栅16，或者可以被构造为波导10内的可调DFB光纤激光器或交互光纤激光器。波导可能类似于短的“块”或更长的“手杖”类型，具体取决于所使用的应用和尺寸。

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