专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08433169B2 Bend insensitivity in single mode optical fibers 有权
公开(公告)号：US08433169B2
公开(公告)日：2013-04-30
申请号：US13005343
申请日：2011-01-12
申请人： John Michael Fini , Poul Kristensen
发明人： John Michael Fini , Poul Kristensen
IPC分类号： G02B6/36 , G02B6/02
CPC分类号： G02B6/03688 , G02B6/02342 , G02B6/02366 , G02B6/02371 , G02B6/0238 , G02B6/03672
摘要： An optical fiber that is relatively insensitive to bend loss comprises a core region and a cladding region configured to support and guide the propagation of light in a fundamental transverse mode, the cladding region including (i) an outer cladding region having a refractive index less than that of the core region, (ii) an annular cladding pedestal region having a refractive index higher than that of the outer cladding region and comparable to that of the core region, and (iii) an annular cladding inner trench region disposed between the core region and the pedestal region, the inner trench region having a refractive index less than that of the outer cladding region. In one embodiment, the fiber also includes a (iv) an annular cladding outer trench region disposed between the pedestal region and the outer cladding region, the outer trench region having a refractive index less than that of the outer cladding region. In addition, to suppress HOMs the pedestal region is configured to resonantly couple at least one other transverse mode of the core region to at least one transverse mode of the pedestal region. Such fiber is advantageously used as access fiber, but may have other applications, such as sensor fiber.

2. 发明授权

US08107784B2 Reduced bend sensitivity and catastrophic bend loss in single mode optical fibers and method of making same 有权
标题翻译：降低单模光纤的弯曲灵敏度和灾难性弯曲损耗及其制作方法
公开(公告)号：US08107784B2
公开(公告)日：2012-01-31
申请号：US12472522
申请日：2009-05-27
申请人： Peter Ingo Borel , David John DiGiovanni , John Michael Fini , Poul Kristensen
发明人： Peter Ingo Borel , David John DiGiovanni , John Michael Fini , Poul Kristensen
IPC分类号： G02B6/36 , G02B6/02
CPC分类号： C03B37/018 , C03B37/01211 , C03B37/01807 , C03B2201/12 , C03B2203/22 , C03B2203/23 , G02B6/02342 , G02B6/03672 , G02B6/03677 , G02B6/03683 , G02B6/03688 , G02B6/14 , Y02P40/57
摘要： An optical fiber that is relatively insensitive to bend loss and alleviates the problem of catastrophic bend loss comprises a core region and a cladding region configured to support and guide the propagation of light in a fundamental transverse mode. The cladding region includes (i) an outer cladding region, (ii) an annular pedestal (or ring) region, (iii) an annular inner trench region, and (iv) an annular outer trench region. The pedestal region and the outer cladding region each have a refractive index relatively close to that of the outer cladding region. In order to suppress HOMs the pedestal region is configured to resonantly couple at least one (unwanted) transverse mode of the core region (other than the fundamental mode) to at least one transverse mode of the pedestal region. In a preferred embodiment, the fiber is configured so that, at a signal wavelength of approximately 1550 nm, its bend loss is no more than about 0.1 dB/turn at bend radius of 5 mm and is no more than about 0.02 dB/turn at a bend radius of 10 mm. In addition, in one embodiment, the core region also includes an inner core region and an annular outer core (or shelf) region surrounding the inner core region. The outer core region extends radially a distance of less than 9 μm from the fiber axis. In another embodiment, the inner trench region includes an annular inner portion and an annular outer (or step) portion surrounding said inner portion. The refractive index of the step portion is greater than that of the inner portion. In a preferred embodiment, both of the foregoing features of the core region and the inner trench region are incorporated in the fiber. Also described are multi-tube fabrication techniques for making such fibers.
摘要翻译：对弯曲损耗相对不敏感并减轻灾难性弯曲损耗的问题的光纤包括芯区域和被配置为支撑和引导基本横向模式的光的传播的包层区域。包层区域包括（i）外包层区域，（ii）环形基座（或环）区域，（iii）环形内沟槽区域和（iv）环形外沟槽区域。基座区域和外部包层区域的折射率相对于外部包层区域的折射率相对接近。为了抑制HOM，基座区域被配置为将芯区域（基本模式除外）的至少一个（不需要的）横向模式谐振地耦合到基座区域的至少一个横向模式。在优选实施例中，光纤被配置为使得在大约1550nm的信号波长处，其弯曲半径在5mm处的弯曲损耗不超过约0.1dB /匝，并且在不超过约0.02dB /匝弯曲半径为10mm。此外，在一个实施例中，芯区域还包括内芯区域和围绕内芯区域的环形外芯（或搁架）区域。外芯区域从纤维轴径向延伸小于9μm的距离。在另一个实施例中，内沟槽区域包括环形内部部分和围绕所述内部部分的环形外（或台阶）部分。台阶部分的折射率大于内部部分的折射率。在一个优选实施例中，芯部区域和内部沟槽区域的前述特征都包含在纤维中。还描述了用于制造这种纤维的多管制造技术。

3. 发明申请

US20090185171A1 Measuring modal content of multi-moded fibers 有权
标题翻译：测量多模光纤的模态含量
公开(公告)号：US20090185171A1
公开(公告)日：2009-07-23
申请号：US12214629
申请日：2008-06-20
申请人： Poul Kristensen , Jeffrey W. Nicholson , Siddharth Ramachandran , Andrew D. Yablon
发明人： Poul Kristensen , Jeffrey W. Nicholson , Siddharth Ramachandran , Andrew D. Yablon
IPC分类号： G01N21/00
CPC分类号： G01M11/335 , G01M11/331
摘要： The output modal content of optical fibers that contain more than one spatial mode may be analyzed and quantified by measuring interference between co-propagating modes in the optical fiber. By spatially resolving the interference, an image of the spatial beat pattern between two modes may be constructed, thereby providing information about the modes supported by the optical fiber.
摘要翻译：可以通过测量光纤中共同传播模式之间的干扰来分析和量化包含多于一个空间模式的光纤的输出模态含量。通过空间分辨干扰，可以构建两种模式之间的空间拍图的图像，从而提供关于由光纤支持的模式的信息。

4. 发明申请

US20140126915A1 METHOD OF REDUCING THE MODAL GROUP DELAY IN A MULTIMODE TRANSMISSION SYSTEM 审中-公开
标题翻译：在多模传输系统中减少模式组延迟的方法
公开(公告)号：US20140126915A1
公开(公告)日：2014-05-08
申请号：US14127801
申请日：2012-07-02
申请人： Lars Gruner-Nielsen , Sander Jansen , Poul Kristensen , Dirk Van Den Borne , Andrew Ellis
发明人： Lars Gruner-Nielsen , Sander Jansen , Poul Kristensen , Dirk Van Den Borne , Andrew Ellis
IPC分类号： H04B10/2581
CPC分类号： H04B10/2581 , H04J14/04
摘要： Systems and methods for reducing modal group delay when transmitting a plurality of optical signals over a transmission line that supports a plurality of modes are disclosed. The modes are converted at a plurality of positions along the transmission line so the signals in the end have minimal group delay. The method comprises the steps of receiving N number of optical signals into a multimode fiber having at least N modes, transmitting each of N signals into a mode of the at least N modes of the multimode fiber, and converting each of the N modes into another of the N modes at N positions along the transmission line, such that the net modal group delay generated between the N signals along the transmission line is minimized.
摘要翻译：公开了一种用于在支持多种模式的传输线上发送多个光信号时减少模式组延迟的系统和方法。这些模式在沿着传输线的多个位置处被转换，使得最终的信号具有最小的组延迟。该方法包括以下步骤：将N个光信号接收到具有至少N个模式的多模光纤中，将N个信号中的每一个发送到多模光纤的至少N个模式的模式，并将N个模式中的每一个转换为另一个沿着传输线在N个位置处的N个模式，使得沿着传输线的N个信号之间产生的净模式组延迟最小化。

5. 发明授权

US08374472B2 Bend insensitivity in single mode optical fibers 有权
公开(公告)号：US08374472B2
公开(公告)日：2013-02-12
申请号：US12072869
申请日：2008-02-28
申请人： John Michael Fini , Poul Kristensen
发明人： John Michael Fini , Poul Kristensen
IPC分类号： G02B6/36 , G02B6/02
CPC分类号： G02B6/03688 , G02B6/02342 , G02B6/02366 , G02B6/02371 , G02B6/0238 , G02B6/03672
摘要： An optical fiber that is relatively insensitive to bend loss comprises a core region and a cladding region configured to support and guide the propagation of light in a fundamental transverse mode, the cladding region including (i) an outer cladding region having a refractive index less than that of the core region, (ii) an annular cladding pedestal region having a refractive index higher than that of the outer cladding region and comparable to that of the core region, and (iii) an annular cladding inner trench region disposed between the core region and the pedestal region, the inner trench region having a refractive index less than that of the outer cladding region. In one embodiment, the fiber also includes a (iv) an annular cladding outer trench region disposed between the pedestal region and the outer cladding region, the outer trench region having a refractive index less than that of the outer cladding region. In addition, to suppress HOMs the pedestal region is configured to resonantly couple at least one other transverse mode of the core region to at least one transverse mode of the pedestal region. Such fiber is advantageously used as access fiber, but may have other applications, such as sensor fiber.

6. 发明申请

US20090290841A1 Reduced Bend Sensitivity and Catastrophic Bend Loss In Single Mode Optical Fibers and Method of Making Same 有权
标题翻译：降低弯曲灵敏度和单模光纤中的灾难性弯曲损耗及其制作方法
公开(公告)号：US20090290841A1
公开(公告)日：2009-11-26
申请号：US12472522
申请日：2009-05-27
申请人： Peter Ingo Borel , David John DiGiovanni , John Michael Fini , Poul Kristensen
发明人： Peter Ingo Borel , David John DiGiovanni , John Michael Fini , Poul Kristensen
IPC分类号： G02B6/036
CPC分类号： C03B37/018 , C03B37/01211 , C03B37/01807 , C03B2201/12 , C03B2203/22 , C03B2203/23 , G02B6/02342 , G02B6/03672 , G02B6/03677 , G02B6/03683 , G02B6/03688 , G02B6/14 , Y02P40/57
摘要： An optical fiber that is relatively insensitive to bend loss and alleviates the problem of catastrophic bend loss comprises a core region and a cladding region configured to support and guide the propagation of light in a fundamental transverse mode. The cladding region includes (i) an outer cladding region, (ii) an annular pedestal (or ring) region, (iii) an annular inner trench region, and (iv) an annular outer trench region. The pedestal region and the outer cladding region each have a refractive index relatively close to that of the outer cladding region. In order to suppress HOMs the pedestal region is configured to resonantly couple at least one (unwanted) transverse mode of the core region (other than the fundamental mode) to at least one transverse mode of the pedestal region. In a preferred embodiment, the fiber is configured so that, at a signal wavelength of approximately 1550 nm, its bend loss is no more than about 0.1 dB/turn at bend radius of 5 mm and is no more than about 0.02 dB/turn at a bend radius of 10 mm. In addition, in one embodiment, the core region also includes an inner core region and an annular outer core (or shelf) region surrounding the inner core region. The outer core region extends radially a distance of less than 9 μm from the fiber axis. In another embodiment, the inner trench region includes an annular inner portion and an annular outer (or step) portion surrounding said inner portion. The refractive index of the step portion is greater than that of the inner portion. In a preferred embodiment, both of the foregoing features of the core region and the inner trench region are incorporated in the fiber. Also described are multi-tube fabrication techniques for making such fibers.
摘要翻译：对弯曲损耗相对不敏感并减轻灾难性弯曲损耗的问题的光纤包括芯区域和被配置为支撑和引导基本横向模式的光的传播的包层区域。包层区域包括（i）外包层区域，（ii）环形基座（或环）区域，（iii）环形内沟槽区域和（iv）环形外沟槽区域。基座区域和外部包层区域的折射率相对于外部包层区域的折射率相对接近。为了抑制HOM，基座区域被配置为将芯区域（基本模式除外）的至少一个（不需要的）横向模式谐振地耦合到基座区域的至少一个横向模式。在优选实施例中，光纤被配置为使得在大约1550nm的信号波长处，其弯曲半径在5mm处的弯曲损耗不超过约0.1dB /匝，并且在不超过约0.02dB /匝弯曲半径为10mm。此外，在一个实施例中，芯区域还包括内芯区域和围绕内芯区域的环形外芯（或搁架）区域。外芯区域从纤维轴径向延伸小于9μm的距离。在另一个实施例中，内沟槽区域包括环形内部部分和围绕所述内部部分的环形外（或台阶）部分。台阶部分的折射率大于内部部分的折射率。在一个优选实施例中，芯部区域和内部沟槽区域的前述特征都包含在纤维中。还描述了用于制造这种纤维的多管制造技术。

7. 发明授权

US06498887B1 Dispersion-compensating fiber having a high relative dispersion slope 有权
标题翻译：具有高相对色散斜率的色散补偿光纤
公开(公告)号：US06498887B1
公开(公告)日：2002-12-24
申请号：US10098242
申请日：2002-03-15
申请人： Lars Gruner-Nielsen , Poul Kristensen , Quang Nghi Trong Le , Marie Wandel
发明人： Lars Gruner-Nielsen , Poul Kristensen , Quang Nghi Trong Le , Marie Wandel
IPC分类号： G02B610
CPC分类号： G02B6/03644 , G02B6/02261 , G02B6/03611 , G02B6/29377
摘要： Disclosed is a dispersion-compensating (DC) optical fiber 10 that is designed to support the fundamental mode of radiation at 1550 nm. The DC fiber is fabricated from silica glass and has a refractive index profile that includes a core region 51 surrounded by a cladding region 52 having a nominal refractive index n4. The core region includes a central core 511 having a nominal refractive index n1, a “trench” 512 surrounding the central core having a nominal refractive index n2, and a “ridge” 513 surrounding the trench having a nominal refractive index n3. A range of refractive index profiles has been found that provides relative dispersion slopes (RDS) that are greater than 0.012 nm−1 and figures of merit that are greater than 200 ps/(nm·dB). The range is conveniently expressed in terms of index differences and radial dimensions: central core: radius=1.5±0.5 &mgr;m, and 0.015
摘要翻译：公开了一种被设计为支持1550nm的基本辐射模式的色散补偿（DC）光纤10。 DC纤维由石英玻璃制成，并且具有折射率分布，该折射率分布包括由具有标称折射率n4的包层区域52包围的纤芯区域51。芯区域包括具有标称折射率n1的中心芯511，围绕具有标称折射率n2的中心纤芯的“沟槽”512和围绕具有标称折射率n3的沟槽的“脊”513。已经发现，提供大于0.012nm-1的相对色散斜率（RDS）和大于200ps /（nm.dB）的品质因数的折射率分布范围。该范围方便地用指数差和径向尺寸表示：中心纤芯：半径= 1.5±0.5μm，0.015

8. 发明授权

US08515231B2 Method of making an optical fiber with trench region in its index profile 有权
标题翻译：在其折射率分布图中制造具有沟槽区域的光纤的方法
公开(公告)号：US08515231B2
公开(公告)日：2013-08-20
申请号：US13605038
申请日：2012-09-06
申请人： Peter Ingo Borel , David John DiGiovanni , John Michael Fini , Poul Kristensen
发明人： Peter Ingo Borel , David John DiGiovanni , John Michael Fini , Poul Kristensen
IPC分类号： G02B6/02
CPC分类号： C03B37/018 , C03B37/01211 , C03B37/01807 , C03B2201/12 , C03B2203/22 , C03B2203/23 , G02B6/02342 , G02B6/03672 , G02B6/03677 , G02B6/03683 , G02B6/03688 , G02B6/14 , Y02P40/57
摘要： Described is a method of fabricating an optical fiber preform that includes a deep index trench comprising a shallower outer trench portion formed on a substrate tube and a deeper inner trench portion formed on the shallower outer trench portion. Each of the shallower outer trench and deeper inner trench portions comprises multiple silica layers. The method comprises the steps of: (1) forming each layer of the shallower outer trench portion in a single-pass deposition of a F-containing silica layer; and (2) forming each layer of the deeper inner portion in a double-pass deposition in which, in a first pass, a layer of silica soot is deposited and then, in a second pass, the soot is sintered in the presence of SiF4.
摘要翻译：描述了一种制造光纤预制棒的方法，其包括深度折射率沟槽，该深度折射率沟槽包括形成在衬底管上的较浅的外部沟槽部分和形成在较浅的外部沟槽部分上的较深的内部沟槽部分。较浅的外沟槽和较深的内沟槽部分中的每一个包括多个二氧化硅层。该方法包括以下步骤：（1）在含F的二氧化硅层的单程沉积中形成较浅的外沟槽部分的各层; 和（2）在双遍沉积中形成更深的内部部分的每个层，其中在第一次通过中沉积二氧化硅烟炱层，然后在第二次通过中，在SiF 4存在下烧结烟炱。

9. 发明授权

US08326106B2 Bend insensitivity in single mode optical fibers 有权
标题翻译：单模光纤弯曲不敏感
公开(公告)号：US08326106B2
公开(公告)日：2012-12-04
申请号：US13005353
申请日：2011-01-12
申请人： John Michael Fini , Poul Kristensen
发明人： John Michael Fini , Poul Kristensen
IPC分类号： G02B6/36 , G02B6/02
CPC分类号： G02B6/03688 , G02B6/02342 , G02B6/02366 , G02B6/02371 , G02B6/0238 , G02B6/03672
摘要： An optical fiber that is relatively insensitive to bend loss comprises a core region and a cladding region configured to support and guide the propagation of light in a fundamental transverse mode, the cladding region including (i) an outer cladding region having a refractive index less than that of the core region, (ii) an annular cladding pedestal region having a refractive index higher than that of the outer cladding region and comparable to that of the core region, and (iii) an annular cladding inner trench region disposed between the core region and the pedestal region, the inner trench region having a refractive index less than that of the outer cladding region. In one embodiment, the fiber also includes a (iv) an annular cladding outer trench region disposed between the pedestal region and the outer cladding region, the outer trench region having a refractive index less than that of the outer cladding region. In addition, to suppress HOMs the pedestal region is configured to resonantly couple at least one other transverse mode of the core region to at least one transverse mode of the pedestal region. Such fiber is advantageously used as access fiber, but may have other applications, such as sensor fiber.
摘要翻译：对弯曲损耗相对不敏感的光纤包括芯区域和被配置为支撑和引导基本横向模式的光的传播的包层区域，所述包层区域包括（i）折射率小于芯区域的区域，（ii）折射率高于外包层区域的折射率的环形包层基座区域，与芯区域的折射率相当，以及（iii）设置在芯区域之间的环形包层内沟槽区域以及所述基座区域，所述内部沟槽区域的折射率小于所述外部包层区域的折射率。在一个实施例中，纤维还包括（iv）设置在基座区域和外包层区域之间的环形包层外部沟槽区域，外部沟槽区域的折射率小于外部包层区域的折射率。此外，为了抑制HOM，基座区域被配置为将芯区域的至少一个其他横向模式谐振地耦合到基座区域的至少一个横向模式。这种纤维有利地用作接入纤维，但可以具有其它应用，例如传感器纤维。

10. 发明申请

US20110194814A1 BEND INSENSITIVITY IN SINGLE MODE OPTICAL FIBERS 有权
标题翻译：在单模光纤中弯曲敏感性
公开(公告)号：US20110194814A1
公开(公告)日：2011-08-11
申请号：US13005353
申请日：2011-01-12
申请人： JOHN MICHAEL FINI , Poul Kristensen
发明人： JOHN MICHAEL FINI , Poul Kristensen
IPC分类号： G02B6/26
CPC分类号： G02B6/03688 , G02B6/02342 , G02B6/02366 , G02B6/02371 , G02B6/0238 , G02B6/03672
摘要： An optical fiber that is relatively insensitive to bend loss comprises a core region and a cladding region configured to support and guide the propagation of light in a fundamental transverse mode, the cladding region including (i) an outer cladding region having a refractive index less than that of the core region, (ii) an annular cladding pedestal region having a refractive index higher than that of the outer cladding region and comparable to that of the core region, and (iii) an annular cladding inner trench region disposed between the core region and the pedestal region, the inner trench region having a refractive index less than that of the outer cladding region. In one embodiment, the fiber also includes a(iv) an annular cladding outer trench region disposed between the pedestal region and the outer cladding region, the outer trench region having a refractive index less than that of the outer cladding region. In addition, to suppress HOMs the pedestal region is configured to resonantly couple at least one other transverse mode of the core region to at least one transverse mode of the pedestal region. Such fiber is advantageously used as access fiber, but may have other applications, such as sensor fiber.
摘要翻译：对弯曲损耗相对不敏感的光纤包括芯区域和被配置为支撑和引导基本横向模式的光的传播的包层区域，所述包层区域包括（i）折射率小于芯区域的区域，（ii）折射率高于外包层区域的折射率的环形包层基座区域，与芯区域的折射率相当，以及（iii）设置在芯区域之间的环形包层内沟槽区域以及所述基座区域，所述内部沟槽区域的折射率小于所述外部包层区域的折射率。在一个实施例中，纤维还包括（iv）设置在基座区域和外包层区域之间的环形包层外部沟槽区域，外部沟槽区域的折射率小于外部包层区域的折射率。此外，为了抑制HOM，基座区域被配置为将芯区域的至少一个其他横向模式谐振地耦合到基座区域的至少一个横向模式。这种纤维有利地用作接入纤维，但可以具有其它应用，例如传感器纤维。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式