公开(公告)号：US09574911B2

公开(公告)日：2017-02-21

申请号：US13658991

申请日：2012-10-24

申请人： Brett Jason Hoover ,  Ming-Jun Li ,  Shenping Li

发明人： Brett Jason Hoover ,  Ming-Jun Li ,  Shenping Li

IPC分类号： G02B6/02 ,  G01J1/04 ,  G01D5/353 ,  G01J5/08 ,  G01K11/32 ,  G02B6/028 ,  G02B6/036

CPC分类号： G01N21/636 ,  G01D5/35303 ,  G01D5/35364 ,  G01D5/35383 ,  G01J5/0821 ,  G01K11/32 ,  G01K11/3206 ,  G01K2011/322 ,  G01L1/242 ,  G01N2021/638 ,  G01N2201/088 ,  G02B6/02042 ,  G02B6/0281 ,  G02B6/0365

摘要： A two-core optical fiber is provided for use in Brillouin distributed fiber sensor applications and systems. The two-core fiber includes a first and second core. Each core is configured to exhibit a Brillouin frequency shift greater than 30 Mhz relative to the other core. Further, each core possesses temperature and strain coefficients that differ from the other core. The cores can be configured to produce Brillouin frequency shift levels of at least 30 Mhz relative to one another. These differences in shift levels may be effected by adjustment of the material compositions, doping concentrations and/or refractive index profiles of each of the cores. These optical fibers may also be used in BOTDR- and BOTDA-based sensor systems and arrangements.

摘要翻译： 提供两芯光纤用于布里渊分布式光纤传感器应用和系统。 双芯光纤包括第一和第二芯。 每个核心被配置为相对于另一个核心展现大于30Mhz的布里渊频移。 此外，每个核心具有不同于另一核心的温度和应变系数。 核心可以被配置为相对于彼此产生至少30Mhz的布里渊频移水平。 这些偏移水平的差异可以通过调整每个芯的材料组成，掺杂浓度和/或折射率分布来实现。 这些光纤也可用于基于BOTDR和BOTDA的传感器系统和布置。

公开(公告)号：US20140042306A1

公开(公告)日：2014-02-13

申请号：US13658991

申请日：2012-10-24

申请人： Brett Jason Hoover ,  Ming-Jun Li ,  Shenping Li

发明人： Brett Jason Hoover ,  Ming-Jun Li ,  Shenping Li

IPC分类号： G02B6/02 ,  G01J1/04

CPC分类号： G01N21/636 ,  G01D5/35303 ,  G01D5/35364 ,  G01D5/35383 ,  G01J5/0821 ,  G01K11/32 ,  G01K11/3206 ,  G01K2011/322 ,  G01L1/242 ,  G01N2021/638 ,  G01N2201/088 ,  G02B6/02042 ,  G02B6/0281 ,  G02B6/0365

摘要： A two-core optical fiber is provided for use in Brillouin distributed fiber sensor applications and systems. The two-core fiber includes a first and second core. Each core is configured to exhibit a Brillouin frequency shift greater than 30 Mhz relative to the other core. Further, each core possesses temperature and strain coefficients that differ from the other core. The cores can be configured to produce Brillouin frequency shift levels of at least 30 Mhz relative to one another. These differences in shift levels may be effected by adjustment of the material compositions, doping concentrations and/or refractive index profiles of each of the cores. These optical fibers may also be used in BOTDR- and BOTDA-based sensor systems and arrangements.

摘要翻译： 提供两芯光纤用于布里渊分布式光纤传感器应用和系统。 双芯光纤包括第一和第二芯。 每个核心被配置为相对于另一个核心展现大于30Mhz的布里渊频移。 此外，每个核心具有不同于另一核心的温度和应变系数。 核心可以被配置为相对于彼此产生至少30Mhz的布里渊频移水平。 这些偏移水平的差异可以通过调整每个芯的材料组成，掺杂浓度和/或折射率分布来实现。 这些光纤也可用于基于BOTDR和BOTDA的传感器系统和布置。

公开(公告)号：US09120693B2

公开(公告)日：2015-09-01

申请号：US13273495

申请日：2011-10-14

申请人： Brett Jason Hoover ,  Ming-Jun Li

发明人： Brett Jason Hoover ,  Ming-Jun Li

IPC分类号： G02B6/44 ,  G02B6/02 ,  C03B37/014 ,  C03B37/012 ,  C03C25/10 ,  G02B6/028 ,  G02B6/036

CPC分类号： C03B37/027 ,  C03B37/01211 ,  C03B37/01222 ,  C03B37/01282 ,  C03B37/0142 ,  C03B37/01446 ,  C03B37/01493 ,  C03B37/01853 ,  C03B2201/31 ,  C03B2203/04 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/24 ,  C03B2203/34 ,  C03C25/1065 ,  G02B6/02042 ,  G02B6/02395 ,  G02B6/0288 ,  G02B6/03627 ,  G02B6/4403

摘要： Multi-core optical fiber ribbons and methods for making multi-core optical fiber ribbons are described herein. In one embodiment, a multi-core optical fiber ribbon includes at least two core members formed from silica-based glass and oriented in parallel with one another in a single plane. Adjacent core members have a center-to-center spacing ≧15 microns and a cross-talk between adjacent core members is ≦−25 dB. In this embodiment each core member is single-moded with an index of refraction nc, and a core diameter dc. In an alternative embodiment, each core member is multi-moded and the center-to-center spacing between adjacent core members is ≧25 microns. A single cladding layer is formed from silica-based glass and surrounds and is in direct contact with the core members. The single cladding layer is substantially rectangular in cross section with a thickness ≦400 microns and an index of refraction nc1≦nc.

摘要翻译： 本文描述了用于制造多芯光纤带的多芯光纤带和方法。 在一个实施例中，多芯光纤带包括由二氧化硅基玻璃形成并且在单个平面中彼此平行取向的至少两个芯构件。 相邻的芯构件具有≥15微米的中心间距，并且相邻芯构件之间的串扰为-12dB。 在该实施例中，每个芯体单独具有折射率nc和芯直径dc。 在替代实施例中，每个芯构件是多模的，并且相邻芯构件之间的中心到中心的间隔为≥25微米。 单个包层由二氧化硅基玻璃形成并且包围并与核心部件直接接触。 单层包层的横截面基本为矩形，厚度为n1E; 400微米，折射率nc1＆nlE; nc。

公开(公告)号：US20120114292A1

公开(公告)日：2012-05-10

申请号：US13273495

申请日：2011-10-14

申请人： Brett Jason Hoover ,  Ming-Jun Li

发明人： Brett Jason Hoover ,  Ming-Jun Li

IPC分类号： G02B6/02 ,  C03B37/027 ,  C03B37/018 ,  G02B6/028

CPC分类号： C03B37/027 ,  C03B37/01211 ,  C03B37/01222 ,  C03B37/01282 ,  C03B37/0142 ,  C03B37/01446 ,  C03B37/01493 ,  C03B37/01853 ,  C03B2201/31 ,  C03B2203/04 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/24 ,  C03B2203/34 ,  C03C25/1065 ,  G02B6/02042 ,  G02B6/02395 ,  G02B6/0288 ,  G02B6/03627 ,  G02B6/4403

摘要： Multi-core optical fiber ribbons and methods for making multi-core optical fiber ribbons are described herein. In one embodiment, a multi-core optical fiber ribbon includes at least two core members formed from silica-based glass and oriented in parallel with one another in a single plane. Adjacent core members have a center-to-center spacing ≧15 microns and a cross-talk between adjacent core members is ≦−25 dB. In this embodiment each core member is single-moded with an index of refraction nc, and a core diameter dc. In an alternative embodiment, each core member is multi-moded and the center-to-center spacing between adjacent core members is ≧25 microns. A single cladding layer is formed from silica-based glass and surrounds and is in direct contact with the core members. The single cladding layer is substantially rectangular in cross section with a thickness ≦400 microns and an index of refraction nc1≦nc.

摘要翻译： 本文描述了用于制造多芯光纤带的多芯光纤带和方法。 在一个实施例中，多芯光纤带包括由二氧化硅基玻璃形成并且在单个平面中彼此平行取向的至少两个芯构件。 相邻的芯构件具有≥15微米的中心间距，并且相邻芯构件之间的串扰为-12dB。 在该实施例中，每个芯体单独具有折射率nc和芯直径dc。 在替代实施例中，每个芯构件是多模的，并且相邻芯构件之间的中心到中心的间隔为≥25微米。 单个包层由二氧化硅基玻璃形成并且包围并与核心部件直接接触。 单层包层的横截面基本为矩形，厚度为n1E; 400微米，折射率nc1＆nlE; nc。

公开(公告)号：US20110265520A1

公开(公告)日：2011-11-03

申请号：US12769288

申请日：2010-04-28

申请人： Xin Chen ,  Brett Jason Hoover ,  Ming-Jun Li ,  Anping Liu ,  Jody Paul Markley

发明人： Xin Chen ,  Brett Jason Hoover ,  Ming-Jun Li ,  Anping Liu ,  Jody Paul Markley

IPC分类号： G01N23/20

CPC分类号： G01M11/37

摘要： A method for determining a rotational characteristic of an optical fiber is disclosed. The method includes forming an orientation registration feature in an optical fiber preform and drawing an optical fiber from the preform such that the orientation registration feature formed in the optical fiber preform is imparted to the optical fiber. The optical fiber is then rotated about a longitudinal axis and the direction of rotation is periodically reversed. An orientation signal of the optical fiber is determined based on a position of the orientation registration feature as the optical fiber is rotated. A rotational characteristic of the optical fiber is then determined based on the orientation signal.

摘要翻译： 公开了一种用于确定光纤的旋转特性的方法。 该方法包括在光纤预制件中形成取向配准特征并从预成型件拉制光纤，使得在光纤预制件中形成的取向对准特征被赋予光纤。 然后光纤围绕纵向轴线旋转，并且旋转方向周期性地反转。 当光纤旋转时，基于取向对准特征的位置来确定光纤的取向信号。 然后基于取向信号确定光纤的旋转特性。

公开(公告)号：US20090320526A1

公开(公告)日：2009-12-31

申请号：US12146928

申请日：2008-06-26

申请人： Joel Patrick Carberry ,  Leonard Charles Dabich, II ,  Michael Thomas Gallagher ,  Brett Jason Hoover ,  Karl William Koch, III ,  Joseph Edward McCarthy

发明人： Joel Patrick Carberry ,  Leonard Charles Dabich, II ,  Michael Thomas Gallagher ,  Brett Jason Hoover ,  Karl William Koch, III ,  Joseph Edward McCarthy

IPC分类号： C03B37/07 ,  C03B37/023

CPC分类号： G01N21/05 ,  G01N21/31 ,  G01N21/774 ,  G01N2021/0346 ,  G01N2021/052 ,  G01N2021/7783 ,  G02B6/02328 ,  Y10T428/2929 ,  Y10T428/2933

摘要： A preform for forming a hollow-core, slotted photonic band-gap (PBG) optical fiber for use in an environmental sensor, and methods of forming such a fiber using the preform are disclosed. The preform comprises a slotted cladding tube that surrounds a slotted, hollow-core PBG cane. The slots in the cladding tube and PBG cane are longitudinally formed and substantially aligned with each other. When the preform is drawn, the slots merge to form an elongated side opening or slot in the resulting hollow-core PBG fiber. In one case, the slot reaches the hollow core upon drawing, while in another case a second step is used to extend the slot to connect to the hollow core. The fiber is used to form an environmental sensor for sensing the presence of a target substance in an environment. The slot formed in the PBG region of the fiber forms a ridge waveguide wherein a portion of the light that otherwise is confined to the hollow core as a bound mode travels in the slot. The target substance affects the light traveling in the fiber, allowing for the target substance to be detected.

摘要翻译： 公开了一种用于形成用于环境传感器的中空芯，开槽光子带隙（PBG）光纤的预成型件和使用该预成型件形成这种纤维的方法。 预成型件包括围绕开槽的中空PBG棒的开槽包层管。 包层管和PBG拐杖中的狭缝纵向地形成并且基本上彼此对齐。 当预成型件被拉伸时，狭槽合并以在所得中空PBG纤维中形成细长的侧开口或槽。 在一种情况下，槽在拉伸时到达中空芯，而在另一种情况下，使用第二步来延伸槽以连接到中空芯。 纤维用于形成用于感测环境中目标物质的存在的环境传感器。 形成在纤维的PBG区域中的槽形成脊形波导，其中一部分以其它方式被限制在中空芯的光作为结合模式在狭槽中行进。 目标物质影响在纤维中传播的光，允许检测目标物质。

公开(公告)号：US07346250B1

公开(公告)日：2008-03-18

申请号：US11731633

申请日：2007-03-30

申请人： Leonard Charles Dabich, II ,  Michael Thomas Gallagher ,  Daniel Warren Hawtof ,  Brett Jason Hoover ,  Karl William Koch, III

发明人： Leonard Charles Dabich, II ,  Michael Thomas Gallagher ,  Daniel Warren Hawtof ,  Brett Jason Hoover ,  Karl William Koch, III

IPC分类号： G02B6/04 ,  G02B6/02

CPC分类号： G02B6/02357 ,  C03B37/01208 ,  C03B37/01228 ,  C03B2203/42

摘要： A method of fabricating a microstructure for an optical waveguide such as a photonic bandgap fiber is provided. The method includes the steps of assembling a stack of capillary tubes having substantially identical dimensions, fusing and redrawing the stack into a preform having a plurality of parallel holes of equal diameter, selecting a pattern of the holes for etching in order to increase their diameter, and plugging the unselected holes at one end of the preform against the flow of a pressurized etching fluid. Such plugging of the unselected holes is accomplished applying a layer of a gel-like sealant over the end of the preform, and then pushing the sealant into the holes to form sealant plugs in all of the holes. The sealant plugs are then removed from the selected holes by punching the sealant plugs out of the selected holes. The selected holes are then etched by conducting a pressurized flow of etching fluid to the end of the preform such that etching fluid flows only through the pattern of selected holes. The resulting preform is then fused and drawn into an optical waveguide, where the pattern of etched and unetched holes may form, for example, the microstructure for a photonic bandgap optical fiber.

摘要翻译： 提供了一种制造诸如光子带隙光纤的光波导的微结构的方法。 该方法包括以下步骤：组装具有基本上相同尺寸的毛细管堆叠，将叠层熔化并重新拉伸成具有多个相同直径的平行孔的预制件，选择用于蚀刻的孔的图案以增加其直径， 并且在预成型件的一端处与未加压的蚀刻流体的流动堵塞未选择的孔。 实现未选择的孔的这种堵塞是在预成型件的端部上施加一层凝胶状密封剂，然后将密封剂推入孔中以在所有孔中形成密封塞。 然后通过从所选择的孔中冲出密封剂塞从所选择的孔中移除密封塞。 然后通过将加压的蚀刻流体流引导到预成型件的端部来蚀刻所选择的孔，使得蚀刻流体仅流过选定孔的图案。 然后将所得的预制件熔合并拉入光波导，其中蚀刻和未蚀刻孔的图案可以形成例如光子带隙光纤的微结构。

公开(公告)号：US08133593B2

公开(公告)日：2012-03-13

申请号：US12146928

申请日：2008-06-26

申请人： Joel Patrick Carberry ,  Leonard Charles Dabich, II ,  Michael Thomas Gallagher ,  Brett Jason Hoover ,  Karl William Koch, III ,  Joseph Edward McCarthy

发明人： Joel Patrick Carberry ,  Leonard Charles Dabich, II ,  Michael Thomas Gallagher ,  Brett Jason Hoover ,  Karl William Koch, III ,  Joseph Edward McCarthy

IPC分类号： B29B7/00 ,  D02G3/00 ,  B32B17/06 ,  G02B6/02

CPC分类号： G01N21/05 ,  G01N21/31 ,  G01N21/774 ,  G01N2021/0346 ,  G01N2021/052 ,  G01N2021/7783 ,  G02B6/02328 ,  Y10T428/2929 ,  Y10T428/2933

摘要： A preform for forming a hollow-core, slotted photonic band-gap (PBG) optical fiber for use in an environmental sensor, and methods of forming such a fiber using the preform are disclosed. The preform comprises a slotted cladding tube that surrounds a slotted, hollow-core PBG cane. The slots in the cladding tube and PBG cane are longitudinally formed and substantially aligned with each other. When the preform is drawn, the slots merge to form an elongated side opening or slot in the resulting hollow-core PBG fiber.

摘要翻译： 公开了一种用于形成用于环境传感器的中空芯，开槽光子带隙（PBG）光纤的预成型件和使用该预成型件形成这种纤维的方法。 预成型件包括围绕开槽的中空PBG棒的开槽包层管。 包层管和PBG拐杖中的狭缝纵向地形成并且基本上彼此对齐。 当预成型件被拉伸时，狭槽合并以在所得中空PBG纤维中形成细长的侧开口或槽。