公开(公告)号：US07386206B2

公开(公告)日：2008-06-10

申请号：US10655036

申请日：2003-09-05

申请人： Haruhiko Tabuchi ,  Terukazu Naruse ,  Koji Terada ,  Kohei Shibata

发明人： Haruhiko Tabuchi ,  Terukazu Naruse ,  Koji Terada ,  Kohei Shibata

IPC分类号： G02B6/34

CPC分类号： G02B6/12011 ,  G02B6/12019 ,  G02B6/29383

摘要： An optical device used, for example, in an add/drop multiplexer, a dynamic gain equalizer or a optical power monitor. The optical device includes (a) a substrate; (b) a first slab waveguide formed on the substrate; (c) channel waveguides of differing lengths formed on the substrate, light output from the first slab waveguide being input to the channel waveguides; and (d) a second slab waveguide formed on the substrate, light output from the channel waveguides being input to the second slab waveguide. An end face of the second slab waveguide shares a face with an end face of the substrate. The optical device has low loss characteristics.

公开(公告)号：US07400793B2

公开(公告)日：2008-07-15

申请号：US11491130

申请日：2006-07-24

申请人： Haruhiko Tabuchi ,  Terukazu Naruse ,  Koji Terada ,  Kohei Shibata

发明人： Haruhiko Tabuchi ,  Terukazu Naruse ,  Koji Terada ,  Kohei Shibata

IPC分类号： G02B6/28

CPC分类号： G02B6/12011 ,  G02B6/12019 ,  G02B6/29383

摘要： An optical device used, for example, in an add/drop multiplexer, a dynamic gain equalizer or a optical power monitor. The optical device includes (a) a substrate; (b) a first slab waveguide formed on the substrate; (c) channel waveguides of differing lengths formed on the substrate, light output from the first slab waveguide being input to the channel waveguides; and (d) a second slab waveguide formed on the substrate, light output from the channel waveguides being input to the second slab waveguide. An end face of the second slab waveguide shares a face with an end face of the substrate. The optical device has low loss characteristics.

摘要翻译： 例如，在分插复用器，动态增益均衡器或光功率监视器中使用的光学装置。 光学装置包括（a）基板; （b）形成在所述基板上的第一平板波导管; （c）在衬底上形成不同长度的沟道波导，从第一平板波导输出的光输入到沟道波导; 和（d）形成在基板上的第二平板波导，从通道波导输出的光被输入到第二平板波导。 第二平板波导的端面与基板的端面共面。 光学器件具有低损耗特性。

公开(公告)号：US20060257091A1

公开(公告)日：2006-11-16

申请号：US11491130

申请日：2006-07-24

申请人： Haruhiko Tabuchi ,  Terukazu Naruse ,  Koji Terada ,  Kohei Shibata

发明人： Haruhiko Tabuchi ,  Terukazu Naruse ,  Koji Terada ,  Kohei Shibata

IPC分类号： G02B6/12

CPC分类号： G02B6/12011 ,  G02B6/12019 ,  G02B6/29383

摘要： An optical device used, for example, in an add/drop multiplexer, a dynamic gain equalizer or a optical power monitor. The optical device includes (a) a substrate; (b) a first slab waveguide formed on the substrate; (c) channel waveguides of differing lengths formed on the substrate, light output from the first slab waveguide being input to the channel waveguides; and (d) a second slab waveguide formed on the substrate, light output from the channel waveguides being input to the second slab waveguide. An end face of the second slab waveguide shares a face with an end face of the substrate. The optical device has low loss characteristics.

摘要翻译： 例如，在分插复用器，动态增益均衡器或光功率监视器中使用的光学装置。 光学装置包括（a）基板; （b）形成在所述基板上的第一平板波导管; （c）在衬底上形成不同长度的沟道波导，从第一平板波导输出的光输入到沟道波导; 和（d）形成在基板上的第二平板波导，从通道波导输出的光被输入到第二平板波导。 第二平板波导的端面与基板的端面共面。 光学器件具有低损耗特性。

公开(公告)号：US07428355B2

公开(公告)日：2008-09-23

申请号：US11752740

申请日：2007-05-23

申请人： Koji Terada ,  Haruhiko Tabuchi ,  Kohei Shibata ,  Terukazu Naruse

发明人： Koji Terada ,  Haruhiko Tabuchi ,  Kohei Shibata ,  Terukazu Naruse

IPC分类号： G02B6/34 ,  G02B6/26 ,  G02B6/42

CPC分类号： G02B6/12019 ,  G02B6/12016 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/3512 ,  G02B6/3516 ,  G02B6/355 ,  G02B6/3552 ,  G02B6/356 ,  G02B6/3566 ,  G02B6/3594 ,  G02F1/313 ,  H04J14/0212

摘要： An optical device enabling reducing device scale is constituted by M circulators (11a, 11b), (M being a natural number), a waveguide-type diffraction grating (12) including M first input/output waveguides (121a, 121b) formed at its one end and M×N second input/output waveguides (125a-1 to 125a-N and 125b-1 to 125b-N) formed at the other end, (N being a natural number), and paths from the M circulators being connected to the M first input/output waveguides; and N reflection-type optical switches (13-1 to 13-N) each for reflecting the optical paths for M adjacent waveguides out of the M×N second input/output waveguides(125a-1 to 125a-N and 125b-1 to 125b-N) and for switching over the returning-destination waveguide respectively, wherein the M circulators, the waveguide-type diffraction grating and N reflection-type optical switches are arranged in cascade. Consequently, the optical device can function preferably also as a wavelength selective optical switch available in a WDM transmission system.

摘要翻译： 能够减小装置规模的光学装置由M个循环器（11a，11b），（M是自然数）构成，波导型衍射光栅（12）包括M个第一输入/输出波导（121a，121b ）和在另一端形成的MxN个第二输入/输出波导（125a-1至125aN和125b-1至125bN），（N为自然数），以及来自M个循环器 连接到M个第一输入/输出波导; 和N个反射型光开关（13-1至13-N），用于将M个相邻波导的光路反射出M×N个第二输入/输出波导（125a-1至125aN和125b-1至125） bN）并分别切换返回目的地波导，其中M个循环器，波导型衍射光栅和N个反射型光开关被级联布置。 因此，光学装置可以优选地也可以用作WDM传输系统中可用的波长选择光开关。

公开(公告)号：US07239770B2

公开(公告)日：2007-07-03

申请号：US11140366

申请日：2005-05-27

申请人： Koji Terada ,  Haruhiko Tabuchi ,  Kohei Shibata ,  Terukazu Naruse

发明人： Koji Terada ,  Haruhiko Tabuchi ,  Kohei Shibata ,  Terukazu Naruse

IPC分类号： G02B6/26 ,  G02B6/42

CPC分类号： G02B6/12019 ,  G02B6/12016 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/3512 ,  G02B6/3516 ,  G02B6/355 ,  G02B6/3552 ,  G02B6/356 ,  G02B6/3566 ,  G02B6/3594 ,  G02F1/313 ,  H04J14/0212

摘要： An optical device enabling reducing device scale is constituted by M circulators (11a, 11b), (M being a natural number), a waveguide-type diffraction grating (12) including M first input/output waveguides (121a, 121b) formed at its one end and M×N second input/output waveguides (125a-1 to 125a-N and 125b-1 to 125b-N) formed at the other end, (N being a natural number), and paths from the M circulators being connected to the M first input/output waveguides; and N reflection-type optical switches (13-1 to 13-N) each for reflecting the optical paths for M adjacent waveguides out of the M×N second input/output waveguides (125a-1 to 125a-N and 125b-1 to 125b-N) and for switching over the returning-destination waveguide respectively, wherein the M circulators, the waveguide-type diffraction grating and N reflection-type optical switches are arranged in cascade. Consequently, the optical device can function preferably also as a wavelength selective optical switch available in a WDM transmission system.

摘要翻译： 能够减小装置规模的光学装置由M个循环器（11a，11b），（M是自然数）构成，波导型衍射光栅（12）包括M个第一输入/输出波导（121a，121b ）和在另一端形成的MxN个第二输入/输出波导（125a-1至125aN和125b-1至125bN），（N为自然数），以及来自M个循环器 连接到M个第一输入/输出波导; 和N个反射型光开关（13-1至13-N），用于将M个相邻波导的光路反射出M×N个第二输入/输出波导（125a-1至125aN和125b-1至125） bN）并分别切换返回目的地波导，其中M个循环器，波导型衍射光栅和N个反射型光开关被级联布置。 因此，光学装置可以优选地也可以用作WDM传输系统中可用的波长选择光开关。

公开(公告)号：US20060274994A1

公开(公告)日：2006-12-07

申请号：US11140366

申请日：2005-05-27

申请人： Koji Terada ,  Haruhiko Tabuchi ,  Kohei Shibata ,  Terukazu Naruse

发明人： Koji Terada ,  Haruhiko Tabuchi ,  Kohei Shibata ,  Terukazu Naruse

IPC分类号： G02B6/34 ,  G02B6/26 ,  G02B6/42

CPC分类号： G02B6/12019 ,  G02B6/12016 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/3512 ,  G02B6/3516 ,  G02B6/355 ,  G02B6/3552 ,  G02B6/356 ,  G02B6/3566 ,  G02B6/3594 ,  G02F1/313 ,  H04J14/0212

摘要： An optical device enabling reducing device scale is constituted by M circulators (11a, 11b), (M being a natural number), a waveguide-type diffraction grating (12) including M first input/output waveguides (121a, 121b) formed at its one end and M×N second input/output waveguides (125a-1 to 125a-N and 125b-1 to 125b-N) formed at the other end, (N being a natural number), and paths from the M circulators being connected to the M first input/output waveguides; and N reflection-type optical switches (13-1 to 13-N) each for reflecting the optical paths for M adjacent waveguides out of the M×N second input/output waveguides (125a-1 to 125a-N and 125b-1 to 125b-N) and for switching over the returning-destination waveguide respectively, wherein the M circulators, the waveguide-type diffraction grating and N reflection-type optical switches are arranged in cascade. Consequently, the optical device can function preferably also as a wavelength selective optical switch available in a WDM transmission system.

摘要翻译： 能够减小装置规模的光学装置由M个循环器（11a，11b），（M是自然数）构成，波导型衍射光栅（12）包括M个第一输入/输出波导（121a，121b ）和在另一端形成的MxN个第二输入/输出波导（125a-1至125aN和125b-1至125bN），（N为自然数），以及来自M个循环器 连接到M个第一输入/输出波导; 和N个反射型光开关（13-1至13-N），用于将M个相邻波导的光路反射出M×N个第二输入/输出波导（125a-1至125aN和125b-1至125） bN）并分别切换返回目的地波导，其中M个循环器，波导型衍射光栅和N个反射型光开关被级联布置。 因此，光学装置可以优选地也可以用作WDM传输系统中可用的波长选择光开关。

公开(公告)号：US06813415B2

公开(公告)日：2004-11-02

申请号：US10353004

申请日：2003-01-29

申请人： Haruhiko Tabuchi ,  Terukazu Naruse

发明人： Haruhiko Tabuchi ,  Terukazu Naruse

IPC分类号： G02B634

CPC分类号： G02B6/12011

摘要： The present invention aims at providing a wavelength multiplexing/demultiplexing apparatus for reducing a loss at a portion where an input slab and channel waveguides are connected with each other, thereby capable of realizing the reduction of loss in the overall apparatus. In order to achieve the above object, in this wavelength multiplexing/demultiplexing apparatus comprising an input waveguide, an input slab, channel waveguides, an output slab and output waveguides that are formed on a substrate, a curvature radius (r1) of an output side circular arc interface of the input slab is smaller than a curvature radius (r2) of an input side circular arc interface of the output slab, and spacing (P1) between the channel waveguides at a portion where the input slab and each of the channel waveguides are connected with each other is smaller than spacing (P2) between the channel waveguides at a portion where each of the channel waveguides and the output slab are connected with each other.

摘要翻译： 本发明旨在提供一种用于减少输入板和沟道波导彼此连接的部分的损耗的波长复用/解复用装置，从而能够实现整个装置的损耗的减少。 为了实现上述目的，在包括输入波导，输入板，通道波导，输出板和在基板上形成的输出波导的波分复用/解复用装置中，输出侧的曲率半径（r1） 输入板的圆弧界面小于输出板的输入侧圆弧界面的曲率半径（r2），以及在输入板和每个通道波导部分的通道波导之间的间隔（P1） 彼此连接的小于在通道波导和输出板彼此连接的部分处的通道波导之间的间隔（P2）。

公开(公告)号：US07020358B2

公开(公告)日：2006-03-28

申请号：US10875685

申请日：2004-06-25

申请人： Haruhiko Tabuchi ,  Terukazu Naruse

发明人： Haruhiko Tabuchi ,  Terukazu Naruse

IPC分类号： G02B6/26 ,  H04J14/02

CPC分类号： G02B6/12011 ,  G02B2006/1215 ,  G02B2006/12154 ,  G02B2006/12195

摘要： The invention provides a wavelength division demultiplexing apparatus which can reduce the connection loss between an input slab and channel waveguides and can suppress excitation of higher-order mode light to reduce the loss. The apparatus includes a first waveguide for propagating WDM light, a first slab for diffusing the light from the first waveguide, a plurality of channel waveguides having a series of different waveguide lengths with a predetermined difference for receiving and splitting the light from the first slab, a second slab for condensing the split light from the channel waveguides, and a second waveguide for propagating the light from the second slab therein, all formed on asubtrate. The channel waveguides and the first slab are optically connected to each other at a number of nodes greater than the number of nodes at which the channel waveguides and the second slab are connected to each other.

公开(公告)号：US06810167B2

公开(公告)日：2004-10-26

申请号：US10102897

申请日：2002-03-22

申请人： Haruhiko Tabuchi ,  Terukazu Naruse

发明人： Haruhiko Tabuchi ,  Terukazu Naruse

IPC分类号： G02B626

CPC分类号： G02B6/12011 ,  G02B2006/1215 ,  G02B2006/12154 ,  G02B2006/12195

摘要： The invention provides a wavelength division demultiplexing apparatus which can reduce the connection loss between an input slab and channel waveguides and can suppress excitation of higher-order mode light to reduce the loss. The apparatus includes a first waveguide for propagating WDM light, a first slab for diffusing the light from the first waveguide, a plurality of channel waveguides having a series of different waveguide lengths with a predetermined difference for receiving and splitting the light from the first slab, a second slab for condensing the split light from the channel waveguides, and a second waveguide for propagating the light from the second slab therein, all formed on a subtrate. The channel waveguides and the first slab are optically connected to each other at a number of nodes greater than the number of nodes at which the channel waveguides and the second slab are connected to each other.

摘要翻译： 本发明提供一种波分解复用装置，其可以减少输入板和通道波导之间的连接损耗，并且可以抑制高阶模式光的激发以减少损耗。 该装置包括用于传播WDM光的第一波导，用于扩散来自第一波导的光的第一平板，具有预定差异的一系列不同波导长度的多个波导波导，用于接收和分离来自第一平板的光， 用于聚集来自沟道波导的分离光的第二平板，以及用于传播来自其中的第二平板的光的第二波导，全部以子滴形成。 通道波导和第一平板在多个节点上彼此光学连接，多个节点大于通道波导和第二平板彼此连接的节点数。

公开(公告)号：US06798952B2

公开(公告)日：2004-09-28

申请号：US10150997

申请日：2002-05-21

申请人： Terukazu Naruse

发明人： Terukazu Naruse

IPC分类号： G02B626

CPC分类号： G02B6/12011 ,  G02B6/12016 ,  G02B6/125 ,  G02B2006/1215

摘要： An optical multiplexer/demultiplexer having a small-loss structure that uses an arrayed waveguide grating to optimally make the passband characteristic of demultiplexed light flat. An optical input waveguide and a sector slab waveguide are connected by a directional coupler. The directional coupler comprises a central waveguide including an end portion on the output side of the optical input waveguide and arranged waveguides which are arranged on both sides of the central waveguide and the exits of which are connected to the sector slab waveguide. A taper is formed on both side portions of the central waveguide so that the width of a core will gradually narrow in the direction of the exit, and the central waveguide is located so that this end portion will not touch the sector slab waveguide. The width of a core in each of the arranged waveguides is uniform. The arranged waveguides are arranged on both sides of the central waveguide by the same numbers so that the arranged waveguides will be parallel to the taper formed on the central waveguide. As a result, light from the central waveguide couples with the arranged waveguides.

摘要翻译： 具有小损耗结构的光复用器/解复用器，其使用阵列波导光栅来最佳地使解复用光的通带特性平坦。 光输入波导和扇形平板波导通过定向耦合器连接。 定向耦合器包括中心波导，其包括在光输入波导的输出侧上的端部和布置在中心波导两侧并且其出口连接到扇形平板波导的布置的波导。 在中心波导的两侧部形成有锥形，使得芯的宽度在出射方向上逐渐变窄，并且中心波导的位置使得该端部不会接触扇形平板波导。 每个布置的波导中的芯的宽度是均匀的。 布置的波导以相同的数字布置在中心波导的两侧，使得布置的波导将平行于形成在中心波导上的锥形。 结果，来自中央波导的光与布置的波导耦合。