公开(公告)号：US20110262073A1

公开(公告)日：2011-10-27

申请号：US13119788

申请日：2008-09-19

申请人： Gunnar Hedin ,  Bengt Sahlgren

发明人： Gunnar Hedin ,  Bengt Sahlgren

IPC分类号： G02B6/34

CPC分类号： G02B6/02204

摘要： Improvements relating to thermally tunable fiber optical devices have been disclosed. In one aspect, a thermally tunable fiber Bragg grating device is provided with one or more heaters to (3a, 3b) produce a desired temperature profile along the grating, and one or more supporting auxiliary heaters (5a, 5b) are provided at the edges of the grating in order to compensate for temperature drops caused by heat loss to lower temperature surroundings. In another aspect, two heating structures are thermally connected to each other, such that dissipated heat from one of the structures supports the heating effect of the other structure.

摘要翻译： 已经公开了与热可调谐光纤设备有关的改进。 在一个方面，热可调谐光纤布拉格光栅装置设置有一个或多个加热器，以（3a，3b）沿着光栅产生期望的温度分布，并且在边缘处设置一个或多个辅助辅助加热器（5a，5b） 的光栅，以补偿由热损失引起的温度下降到较低温度环境。 另一方面，两个加热结构彼此热连接，使得来自其中一个结构的散热支持另一结构的加热效果。

公开(公告)号：US08218922B2

公开(公告)日：2012-07-10

申请号：US12527810

申请日：2008-02-15

申请人： Bengt Sahlgren ,  Sten Helmfrid

发明人： Bengt Sahlgren ,  Sten Helmfrid

IPC分类号： G02B6/00 ,  G02B6/02 ,  G02B6/34

CPC分类号： G02B6/02085 ,  G02B6/29317 ,  G02B6/29394 ,  H04B10/25133

摘要： There is disclosed an optical device for dispersion compensation of channels within a predetermined wavelength band, comprising: a waveguiding structure; and a grating structure formed in said waveguiding structure; characterized in that said grating structure has a Bragg frequency profile that is divided into contiguous periods, wherein the Bragg frequencies within each period vary between a lower Bragg frequency and an upper Bragg frequency, said lower and upper Bragg frequencies for each period both corresponding to wavelengths outside of said predetermined wavelength band.

摘要翻译： 公开了一种用于在预定波长带内的信道的色散补偿的光学装置，包括：波导结构; 以及形成在所述波导结构中的光栅结构; 其特征在于，所述光栅结构具有被划分为连续周期的布拉格频率分布，其中每个周期内的布拉格频率在较低的布拉格频率和上布喇格频率之间变化，每个周期的所述下布拉格和上布拉格频率对应于波长 在所述预定波长带之外。

公开(公告)号：US20110064359A1

公开(公告)日：2011-03-17

申请号：US12989288

申请日：2008-04-25

申请人： Bengt Sahlgren ,  Ola Holgersson

发明人： Bengt Sahlgren ,  Ola Holgersson

IPC分类号： G02B6/34

CPC分类号： G02B6/02209 ,  G02B6/0218

摘要： The present invention relates to an optical component, which comprises an optical fibre, which has a minimal functional arc radius in each point thereof, and which includes a thermally compensated portion, and a Bragg grating provided in a region of the thermally compensated portion. The optical fibre component comprises furthermore a temperature-compensating structure, which holds the thermally compensated portion of the optical fibre under tension in a linear direction for athermalizing the Bragg grating, and a housing for mechanical protection of the Bragg grating, which is provided with at least a first lead-through, and which housing has a maximal extension in the linear direction from a first housing end to a second housing end. The first lead-through has an exit end located outside the housing and an entrance end located inside the housing. The optical fibre furthermore includes at least a first connecting portion, which extends from a first end of the thermally compensated portion to and through the first lead-through, and at least a first exit portion which extends from a lead-through exit end of the first connecting portion. The first lead-through is located and arranged such that the first exit portion is bendable to the minimal functional arc radius without protruding more than half the minimal functional arc radius in the linear direction beyond the first housing, also when a shorter exit portion is extended to a length equal to the circumference of a circle with the minimal functional arc radius.

摘要翻译： 光学部件技术领域本发明涉及一种光学部件，其包括光纤，该光纤在其每个点具有最小的功能圆弧半径，并且包括热补偿部分，以及设置在热补偿部分的区域中的布拉格光栅。 光纤部件还包括温度补偿结构，该结构将光纤的热补偿部分保持在线性方向上的张力以使布拉格光栅无热化，以及用于机械保护布拉格光栅的壳体，该壳体设置在 至少一个第一引线，并且该壳体在从第一壳体端部到第二壳体端部的线性方向上具有最大的延伸。 第一导通件具有位于壳体外部的出口端和位于壳体内部的入口端。 光纤还包括至少第一连接部分，该第一连接部分从热补偿部分的第一端延伸并穿过第一引线，以及至少第一出口部分，其从第一引出部分的引出出口端延伸 第一连接部。 第一导通件被定位和布置成使得第一出口部分可弯曲到最小功能圆弧半径，而不会在超过第一壳体的线性方向上突出超过最小功能圆弧半径的一半以上，而且当较短的出口部分延伸 长度等于具有最小功能弧半径的圆的圆周。

公开(公告)号：US07697801B2

公开(公告)日：2010-04-13

申请号：US10520478

申请日：2003-07-10

申请人： Bengt Sahlgren ,  Ulf Öhlander

发明人： Bengt Sahlgren ,  Ulf Öhlander

IPC分类号： G02B6/26

CPC分类号： H04Q11/0005 ,  G02B6/02057 ,  G02B6/272 ,  G02B6/2746 ,  G02B6/2932 ,  G02B6/29323 ,  G02B6/29358 ,  G02B6/29395 ,  G02B6/3516 ,  G02B6/356 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0212 ,  H04Q2011/003 ,  H04Q2011/0035 ,  H04Q2011/0058

摘要： A spectrally selective optical switch is disclosed. The switch comprises a first and a second optical waveguide each having a light guiding structure arranged to guide light along a predetermined path, the optical waveguides being arranged adjacent and parallel to each other; an external resonator defined by a first and a second mirror, said first and said second mirror being provided on opposite sides and outside of said first and second light guiding structures, and said external resonator being resonant to a specific wavelength; and a deflector provided in each of said first and second optical waveguide, the deflectors being arranged to deflect light propagating in one of the light guiding structures to the other light guiding structure by operation of said external resonator. A matrix switch is also disclosed.

摘要翻译： 公开了一种光谱选择性光开关。 开关包括第一和第二光波导，每个光波导具有布置成沿着预定路径引导光的导光结构，光波导彼此相邻并平行布置; 由第一和第二反射镜限定的外部谐振器，所述第一和第二反射镜设置在所述第一和第二导光结构的相对侧和外侧，所述外部谐振器谐振到特定波长; 以及设置在所述第一和第二光波导的每一个中的偏转器，所述偏转器被布置成通过所述外部谐振器的操作使在所述导光结构中的一个中传播的光偏转到另一个导光结构。 还公开了矩阵开关。

公开(公告)号：US20100080499A1

公开(公告)日：2010-04-01

申请号：US12527810

申请日：2008-02-15

申请人： Bengt Sahlgren ,  Sten Helmfrid

发明人： Bengt Sahlgren ,  Sten Helmfrid

IPC分类号： G02F1/01

CPC分类号： G02B6/02085 ,  G02B6/29317 ,  G02B6/29394 ,  H04B10/25133

摘要： There is disclosed an optical device for dispersion compensation of channels within a predetermined wavelength band, comprising: a waveguiding structure; and a grating structure formed in said waveguiding structure; characterized in that said grating structure has a Bragg frequency profile that is divided into contiguous periods, wherein the Bragg frequencies within each period vary between a lower Bragg frequency and an upper Bragg frequency, said lower and upper Bragg frequencies for each period both corresponding to wavelengths outside of said predetermined wavelength band.

摘要翻译： 公开了一种用于在预定波长带内的信道的色散补偿的光学装置，包括：波导结构; 以及形成在所述波导结构中的光栅结构; 其特征在于，所述光栅结构具有被划分为连续周期的布拉格频率分布，其中每个周期内的布拉格频率在较低的布拉格频率和上布喇格频率之间变化，每个周期的所述下布拉格和上布拉格频率对应于波长 在所述预定波长带之外。

公开(公告)号：US07139485B2

公开(公告)日：2006-11-21

申请号：US09749395

申请日：2000-12-28

申请人： Adel Asseh ,  Simon Sandgren ,  Anders Henriksson ,  Mikael Bergman ,  Raoul Stubbe ,  Bengt Sahlgren ,  Ulf Öhlander

发明人： Adel Asseh ,  Simon Sandgren ,  Anders Henriksson ,  Mikael Bergman ,  Raoul Stubbe ,  Bengt Sahlgren ,  Ulf Öhlander

IPC分类号： H04B10/00 ,  H04J14/02

CPC分类号： H04B10/25073 ,  H04J14/0221

摘要： The invention relates to methods and arrangements for channel balancing of a wavelength division multiplexed optical signal. Channel balancing according to the invention is performed by using a resonator that provides a selection region in which a selected channel has a substantially increased poser density relative to channels out of resonance. The selected channel is attenuated a desired amount, i.e. a desired amount of power is removed therefrom, by adjusting the properties of the selection region. In a preferred embodiment, attenuation is achieved by adjusting the selection region such that destructive interference is obtained for the selected channel in a fiber carrying tile multiplexed optical signal.

摘要翻译： 本发明涉及波分复用光信号的信道平衡的方法和装置。 根据本发明的通道平衡通过使用提供选择区域的谐振器来执行，其中所选择的通道相对于不在共振的通道具有基本上增加的偏移密度。 通过调整选择区域的性质，所选择的通道被衰减所需的量，即从其中去除期望的功率量。 在优选实施例中，通过调整选择区域来实现衰减，使得在携带瓦片多路复用光纤信号的光纤中获得针对所选择的信道的破坏性干扰。

公开(公告)号：US20060165346A1

公开(公告)日：2006-07-27

申请号：US10520478

申请日：2003-07-10

申请人： Bengt Sahlgren ,  Ulf Ohlander

发明人： Bengt Sahlgren ,  Ulf Ohlander

IPC分类号： G02B6/26

CPC分类号： H04Q11/0005 ,  G02B6/02057 ,  G02B6/272 ,  G02B6/2746 ,  G02B6/2932 ,  G02B6/29323 ,  G02B6/29358 ,  G02B6/29395 ,  G02B6/3516 ,  G02B6/356 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0212 ,  H04Q2011/003 ,  H04Q2011/0035 ,  H04Q2011/0058

摘要： A spectrally selective optical switch is disclosed. The switch comprises a first and a second optical waveguide each having a light guiding structure arranged to guide light along a predetermined path, the optical waveguides parallel to each other; an external resonator defined by a first and a second mirror, said first and said second mirror being provided on opposite sides and outside of said first and second light guiding structures, and said external resonator being resonant to a specific wavelength; and a deflector provided in each of said first and second optical waveguide, the deflectors being arranged to deflect light propagating in one of the light guiding structures to the other light guiding structure by operation of said external resonator. A matrix switch is also disclosed.

摘要翻译： 公开了一种光谱选择性光开关。 开关包括第一和第二光波导，每个光波导具有布置成沿着预定路径引导光的导光结构，光波导彼此平行; 由第一和第二反射镜限定的外部谐振器，所述第一和第二反射镜设置在所述第一和第二导光结构的相对侧和外侧，所述外部谐振器谐振到特定波长; 以及设置在所述第一和第二光波导的每一个中的偏转器，所述偏转器被布置成通过所述外部谐振器的操作使在所述导光结构中的一个中传播的光偏转到另一个导光结构。 还公开了矩阵开关。

公开(公告)号：US07076133B2

公开(公告)日：2006-07-11

申请号：US10451988

申请日：2001-12-27

申请人： Ulf Öhlander ,  Sten Helmfrid ,  Bengt Sahlgren

发明人： Ulf Öhlander ,  Sten Helmfrid ,  Bengt Sahlgren

IPC分类号： G02B6/26 ,  G02B6/34

CPC分类号： G02B6/4215 ,  G02B6/02085 ,  G02B6/29323

摘要： The invention relates to the coupling of light to and from an optical waveguide, such as an optical fiber. Light of a specific wavelength is deflected out from the fiber, or into the fiber, in a substantially transverse direction with respect to the propagation direction of light in the waveguide, by a deflector 16 arranged in the fiber core 10. Wavelength selectivity of the deflector 16 is provided by a Bragg grating means located in the fiber core 10. The deflected light is collimated, or converged towards a focus, by an interface 15 between a cladding 11, having one index of refraction, and an outer medium 12, having another index of refraction. The ratio between the radius of the cladding 11 and the radius of the core 10 made sufficiently small for the collimating, or converging, effect to appear.

摘要翻译： 本发明涉及光与诸如光纤之类的光波导的耦合。 通过布置在光纤芯10中的偏转器16，将特定波长的光从相对于波导中的光的传播方向的基本横向方向从纤维或纤维偏转出来。偏转器的波长选择性 16由位于光纤芯10中的布拉格光栅装置提供。偏转的光通过具有一个折射率的包层11和具有另一个折射率的外部介质12之间的界面15准直或朝向焦点会聚。 折射率 影响包层11的半径与芯10的半径之间的比例对于准直或会聚效果而言足够小。

公开(公告)号：US07295732B2

公开(公告)日：2007-11-13

申请号：US10581252

申请日：2004-11-30

申请人： Anders Henriksson ,  Fredrik Jonsson ,  Staffan Karlsson ,  Ulf Olin

发明人： Anders Henriksson ,  Fredrik Jonsson ,  Staffan Karlsson ,  Ulf Olin

IPC分类号： G02B6/26

CPC分类号： G02B6/02095 ,  G02B6/02057 ,  G02B6/02085 ,  G02B6/29323 ,  G02B6/29356 ,  G02B6/29358 ,  G02B6/29383 ,  G02B6/29395 ,  G02B6/29397

摘要： The present invention relates to a device, method, array and use of the device for optical coupling. The device comprises first and second optical waveguides (13, 23) extending longitudinally with cores (14, 24) adapted to guide optical radiation (15), first resonator means, laterally surrounding the first waveguide, comprising first and second resonator members (18, 19), and second resonator means, laterally surrounding the second waveguide, comprising third and fourth resonator members (28, 29). The invention is characterized in that first and second deflector means (16, 26) are adapted to couple radiation propagating in the respectiv first and second waveguides with common radiation modes (30), which modes are defined by adjustable geometrical and material properties of the device, so as to obtain wavelength selective coupling of radiation guided by the first and second waveguides, provided the resonator means are tuned to the same resonance wavelength.

摘要翻译： 本发明涉及用于光耦合的装置的装置，方法，阵列和用途。 该装置包括纵向延伸的第一和第二光波导（13,23），其具有适于引导光辐射（15）的芯（14,24），第一谐振器装置横向围绕第一波导，包括第一和第二谐振器构件 并且横向包围第二波导的第二谐振器装置包括第三和第四谐振器构件（28,29）。 本发明的特征在于，第一和第二偏转器装置（16,26）适于将相对于第一和第二波导传播的辐射与公共辐射模式（30）耦合，这些模式由装置的可调几何和材料特性限定 ，以便获得由第一和第二波导引导的辐射的波长选择性耦合，只要谐振器装置被调谐到相同的共振波长。

公开(公告)号：US07260292B2

公开(公告)日：2007-08-21

申请号：US11176448

申请日：2005-07-08

申请人： Bengt Sahlgren ,  Mikael Bergman ,  Johan Pejnefors ,  Raoul Stubbe ,  Sten Helmfrid ,  Bengt Johansson

发明人： Bengt Sahlgren ,  Mikael Bergman ,  Johan Pejnefors ,  Raoul Stubbe ,  Sten Helmfrid ,  Bengt Johansson

IPC分类号： G02B6/34 ,  G02B6/02

CPC分类号： G02B6/29358 ,  G02B6/29323

摘要： The invention is a spectrally selective optical coupler with a new geometry and a new principle of action. An optical coupler according to the invention comprises an optical fiber and an external lightguide. In the fiber there is provided a deflector that is operative to deflect light of a predetermined wavelength into a propagating mode of said lightguide. The outcoupled light is transferred to a region remote from the outcoupling portion of the fiber. The invention can be used to couple light from a first to a second optical fiber.

摘要翻译： 本发明是具有新几何形状和新的作用原理的光谱选择性光耦合器。 根据本发明的光耦合器包括光纤和外部光导。 在光纤中，提供了一个可将预定波长的光偏转成所述光导传播模式的偏转器。 输出耦合的光被转移到远离光纤的输出耦合部分的区域。 本发明可用于耦合来自第一至第二光纤的光。