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。

公开(公告)号：US20130091899A1

公开(公告)日：2013-04-18

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： C03B37/018

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 configured to support and guide the propagation of light in a fundamental transverse mode. The cladding region includes an outer cladding region, a pedestal region, an inner trench region, and an 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. 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. Also described are multi-tube fabrication techniques for making such fibers as well as single-pass/double-pass fabrication techniques for making the trench regions of such fibers.

摘要翻译： 对弯曲损耗相对不敏感的光纤，并且减轻了构成为支持和引导基本横向模式的光的传播的灾难性弯曲损耗的问题。 包层区域包括外包层区域，基座区域，内沟槽区域和外沟槽区域。 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。 还描述了用于制造这种光纤的多管制造技术以及用于制造这种光纤的沟槽区域的单遍/双通制造技术。

公开(公告)号：US08320726B2

公开(公告)日：2012-11-27

申请号：US13374205

申请日：2011-12-15

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： C03B37/027 ,  C03B37/018

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 are multi-tube fabrication techniques for making 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.

摘要翻译： 描述了用于制造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的多管制造技术，包括构造成支撑和引导基本横向模式的光的传播的芯区域和包层区域。 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。

公开(公告)号：US20120159995A1

公开(公告)日：2012-06-28

申请号：US13374205

申请日：2011-12-15

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： C03B37/027 ,  C03B37/018

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。

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 。

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。

公开(公告)号：US20090060437A1

公开(公告)日：2009-03-05

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： G02B6/036

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）具有比外包层区域的折射率高的折射率的环形包层基座区域，并且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。

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.

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.

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。