公开(公告)号：US5848207A

公开(公告)日：1998-12-08

申请号：US703629

申请日：1996-08-29

申请人： Hisato Uetsuka ,  Hideaki Arai

发明人： Hisato Uetsuka ,  Hideaki Arai

IPC分类号： G02B6/34

CPC分类号： G02B6/12007 ,  G02B6/02085 ,  G02B6/02138 ,  G02B6/124 ,  G02B6/29352 ,  G02B6/29383 ,  G02B6/021 ,  G02B6/02152

摘要： A width of a core in an optical waveguide is decreased in accordance with a value of a predetermined equation, as a distance of a position of the core to the center position thereof is decreased. Consequently, a rectangular spectrum property having no ripple is obtained on a lower wavelength side in a reflection grating. In addition, the width of the core is changed at the position Z in the direction of light propagation, while a UV light is radiated to the core, so that a periodically striated distribution of refractive indices having an envelope which is changed in accordance with a value of ".vertline.sin(C.multidot.Z).vertline./.vertline.C.multidot.Z.vertline." is formed in the core of the optical waveguide, and a phase of a light to be propagated in the direction of the light propagation is shifted at the position Z as defined below by .pi.. Z=m.pi./C(m=. . . ,-3,-2,-1,1,2,3, . . ) Thus, a rectangular spectrum property is obtained in a low reflection grating.

摘要翻译： 随着芯的位置与其中心位置的距离减小，光波导中的芯的宽度根据预定方程的值减小。 因此，在反射光栅中的较低波长侧获得无纹波的矩形光谱特性。 此外，在光传播方向上的位置Z处的芯的宽度被改变，同时将紫外光照射到芯，使得具有根据一个或更多个变化的包络线的折射率的周期性条纹分布 “| sin（CxZ）| / | CxZ |”的值 形成在光波导的芯中，并且在光传播方向上传播的光的相位在如下定义的位置Z处偏移pi。 Z = m pi / C（m = ...，-3，-2，-1,1,2,3，...）因此，在低反射光栅中获得矩形光谱特性。

公开(公告)号：US06724954B2

公开(公告)日：2004-04-20

申请号：US09796536

申请日：2001-03-02

申请人： Hideaki Arai ,  Takafumi Chiba ,  Hisato Uetsuka

发明人： Hideaki Arai ,  Takafumi Chiba ,  Hisato Uetsuka

IPC分类号： G02B628

CPC分类号： G02B6/29355 ,  G02B6/12007 ,  G02B6/2938

摘要： In an optical multiplexer/demultiplexer comprising optical multiplexer/demultiplexer circuits connected in multistage, the optical multiplexer/demultiplexer circuits each have two input ports and two output ports, an optical path, through which input optical signals with predetermined wavelengths are output after multiplexing and demultiplexing, varies depending upon the input port; the optical paths in each of the optical multiplexer/demultiplexer circuits have mutually opposite wavelength dispersion characteristics, and one of the optical paths in a first optical multiplexer/demultiplexer circuit is connected to one of the optical paths, in a second optical multiplexer/demultiplexer circuit, having wavelength dispersion characteristics opposite to the optical path in the first optical multiplexer/demultiplexer circuit. By virtue of this construction, an optical multiplexer/demultiplexer can be realized which causes no significant wavelength dispersion and, at the same time, has excellent wavelength flatness characteristics in passband.

摘要翻译： 在包括以多级连接的光复用器/解复用器电路的光复用器/解复用器中，光复用器/解复用器电路各具有两个输入端口和两个输出端口，光路经过多路复用和解复用后输出具有预定波长的输入光信号 ，取决于输入端口; 每个光复用器/多路分离器电路中的光路具有相互相反的波长色散特性，并且在第二光复用器/解复用器电路中，第一光复用器/解复用器电路中的一个光路连接到光路之一 具有与第一光复用器/解复用器电路中的光路相反的波长色散特性。 凭借这种结构，可以实现不产生显着的波长色散的光复用器/解复用器，同时在通带中具有优良的波长平坦度特性。

公开(公告)号：US5995691A

公开(公告)日：1999-11-30

申请号：US70935

申请日：1998-05-01

申请人： Hideaki Arai ,  Ryoji Suzuki ,  Korenori Tamura ,  Hisato Uetsuka

发明人： Hideaki Arai ,  Ryoji Suzuki ,  Korenori Tamura ,  Hisato Uetsuka

IPC分类号： G02B6/122 ,  G02B6/028 ,  G02B6/12 ,  G02B6/34

CPC分类号： G02B6/12007 ,  G02B6/2932 ,  G02B6/2938

摘要： A waveguide type grating device according to the invention includes a quartz substrate, a cladding and two waveguides. Waveguides are arranged to provide an input port, an Add port, an output port, a Drop port, directional 3 dB couplers, core width-changing portions, and grating portions each interposed between core width-changing portions. The width of core is changed between each non-grating portion and each grating portion in an adiabatic structure, for example, a parabolic structure. For this structure, a waveguide type grating device is structured to suppress the increase in wavelength loss due to coupling from progressive propagation mode to regressive radiation mode, with less cost and smaller dimension.

摘要翻译： 根据本发明的波导型光栅装置包括石英基板，包层和两个波导。 波导被布置成提供输入端口，加法端口，输出端口，下降端口，方向3dB耦合器，芯宽度改变部分和每个插入在芯宽度变化部分之间的光栅部分。 核心的宽度在绝热结构中的每个非光栅部分和每个光栅部分之间变化，例如抛物线结构。 对于这种结构，波导型光栅器件被构造为抑制由于从渐进传播模式耦合到回归辐射模式的波长损耗的增加，具有较少的成本和更小的尺寸。

公开(公告)号：US5812709A

公开(公告)日：1998-09-22

申请号：US656384

申请日：1996-05-31

申请人： Hideaki Arai ,  Hisato Uetsuka ,  Kenji Akiba

发明人： Hideaki Arai ,  Hisato Uetsuka ,  Kenji Akiba

IPC分类号： G02B6/12 ,  G02B6/34 ,  G02F1/01 ,  G02F1/313 ,  H04B10/27 ,  H04B10/29 ,  H04J14/00 ,  H04J14/02 ,  G02B6/26

CPC分类号： G02B6/29352 ,  G02B6/12007 ,  G02B6/29395 ,  G02F1/3136 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0213 ,  G02B2006/12145 ,  G02B2006/12164 ,  G02B6/29398 ,  G02F1/0147 ,  G02F2201/307 ,  G02F2203/055 ,  H04J14/0209 ,  H04J14/0219

摘要： An optical device having a switching function has a waveguide filter for switching whether input signal light of including at least one specific wavelength should be transmitted or reflected. The input signal lights of wavelength of .lambda..sub.1 .about..lambda.n are transmitted to the input waveguide. When the waveguide filter is off, the signal lights of all wavelength are transmitted to the output port. When the waveguide filter is on, the signal light of wavelength of .lambda..sub.2 .about..lambda.n are transmitted, but the signal light of wavelength of .lambda..sub.2 is reversed and output to the drop port. If the thin film heaters are off, a signal light of wavelength of .lambda..sub.1 is output (dropped) from the drop port. If the thin film heaters are on, it is reversed and transmitted to the output port.

摘要翻译： 具有切换功能的光学装置具有波导滤波器，用于切换是否应传输或反射包括至少一个特定波长的输入信号光。 λ1差分λn波长的输入信号光被传输到输入波导。 当波导滤波器关闭时，所有波长的信号光都传输到输出端口。 当波导滤波器打开时，波长为λ2 DIFFERENCEλn的信号光被发送，但波长为λ2的信号光反向并输出到下降端口。 如果薄膜加热器关闭，则从下降口输出波长λ1的信号光（下降）。 如果薄膜加热器打开，则反转并传输到输出端口。

公开(公告)号：US5499308A

公开(公告)日：1996-03-12

申请号：US403263

申请日：1995-03-13

申请人： Hideaki Arai ,  Hisato Uetsuka

发明人： Hideaki Arai ,  Hisato Uetsuka

IPC分类号： G02B6/12 ,  G02B6/34 ,  G02B6/26

CPC分类号： G02B6/2938 ,  G02B6/12007 ,  G02B6/29352

摘要： A guided-wave optical multi/demultiplexer is capable of providing a wide wavelength band freely. Each of two directional couplers is constructed so that the coupling ratio of light intensity in the wavelength .lambda..sub.2 is at least 50% and the coupling ratio of light intensity in the wavelength .lambda..sub.3 having a wavelength band in close proximity to the wavelength .lambda..sub.1 is 0% or 100%, the light in the wave band containing the wavelength .lambda..sub.1 and the wavelength .lambda..sub.3 and the light in the wave band containing the wavelength .lambda..sub.2 being multiplexed and demultiplexed.

摘要翻译： 导波光学多路复用器能够自由地提供宽的波长带。 两个定向耦合器中的每一个被构造成使得波长λ2中的光强度的耦合比率至少为50％，并且具有接近波长λ1的波长带的波长λ3中的光强度的耦合比为 0％或100％，包含波长λ1和波长λ3的波段中的光和包含波长λ2的波段中的光被复用和解复用。

公开(公告)号：US6031957A

公开(公告)日：2000-02-29

申请号：US82524

申请日：1998-05-21

申请人： Ryoji Suzuki ,  Hisato Uetsuka ,  Dai Kobayashi ,  Hideaki Arai ,  Korenori Tamura

发明人： Ryoji Suzuki ,  Hisato Uetsuka ,  Dai Kobayashi ,  Hideaki Arai ,  Korenori Tamura

IPC分类号： G02B6/13 ,  G02B6/12 ,  G02F1/01 ,  G02B6/10

CPC分类号： G02F1/011 ,  G02B2006/12107 ,  G02F1/0147 ,  G02F2001/0113 ,  G02F2201/30 ,  G02F2201/307

摘要： A glass wave guide element, which is small in size and amenable to integration and mass-production, and a method of manufacturing the glass wave guide element are provided. The glass wave guide element includes a core 3 having a diffraction grating formed on an under cladding 2, an over cladding 4 covering the core 3 and a heater 6 for changing the Bragg wavelength of the diffraction grating, the heater being arranged on the over cladding 4. The core 3 and a central portion (2B, 4B) of both claddings in a surrounding portion around the core 3 are formed in a state of being continuously separated along a longitudinal direction of the core 3 from the substrate 1 through a gap 5, and the core 3 and the surrounding portion around the core 3 are formed in a state of being spatially intermittently separated in a width direction of the core 3 from a surrounding portion (2A, 2C, 4A, 4C) of both claddings through a gap.

摘要翻译： 本发明提供一种玻璃波导元件，其尺寸小，易于集成和批量生产，以及制造玻璃波导元件的方法。 玻璃波导元件包括具有形成在下包层2上的衍射光栅的芯3，覆盖芯3的上包层4和用于改变衍射光栅的布拉格波长的加热器6，加热器布置在外包层 芯3和围绕芯3的周围部分的两个包层的中心部分（2B，4B）形成为沿着芯3的纵向方向从衬底1通过间隙5连续分离的状态 芯3和围绕芯3的周围部分形成为在芯3的宽度方向上空间间歇地从两个包层的周围部分（2A，2C，4A，4C）间隔开的状态通过间隙 。

公开(公告)号：US5832154A

公开(公告)日：1998-11-03

申请号：US953997

申请日：1997-10-20

申请人： Hisato Uetsuka ,  Hideaki Arai

发明人： Hisato Uetsuka ,  Hideaki Arai

IPC分类号： G02B6/34

CPC分类号： G02B6/12007 ,  G02B6/02085 ,  G02B6/02138 ,  G02B6/124 ,  G02B6/29352 ,  G02B6/29383 ,  G02B6/021 ,  G02B6/02152

摘要： A width of a core in an optical waveguide is decreased in accordance with a value of a predetermined equation, as a distance of a position of the core to the center position thereof is decreased. Consequently, a rectangular spectrum property having no ripple is obtained on a lower wavelength side in a reflection grating. In addition, the width of the core is changed at the position Z in the direction of light propagation, while a UV light is radiated to the core, so that a periodically striated distribution of refractive indices having an envelope which is changed in accordance with a value of ".vertline.sin (C.multidot.Z).vertline./.vertline.C.multidot.Z.vertline." is formed in the core of the optical waveguide, and a phase of a light to be propagated in the direction of the light propagation is shifted at the position Z as defined below by .pi.. Z=m.pi./C(m= - - - , -3,-2,-1,1,2,3, - - - ) Thus, a rectangular spectrum property is obtained in a low reflection grating.

摘要翻译： 随着芯的位置与其中心位置的距离减小，光波导中的芯的宽度根据预定方程的值减小。 因此，在反射光栅中的较低波长侧获得无纹波的矩形光谱特性。 此外，在光传播方向上的位置Z处的芯的宽度被改变，同时将紫外光照射到芯，使得具有根据一个或更多个变化的包络线的折射率的周期性条纹分布 “| sin（CxZ）| / | CxZ |”的值 形成在光波导的芯中，并且在光传播方向上传播的光的相位在如下定义的位置Z处偏移pi。 Z = m pi / C（m = - - - ，-3，-2，-1,1,2,3， - - ）因此，在低反射光栅中获得矩形光谱特性。

公开(公告)号：US06631223B2

公开(公告)日：2003-10-07

申请号：US09783385

申请日：2001-02-15

申请人： Hideaki Arai ,  Takafumi Chiba ,  Hisato Uetsuka

发明人： Hideaki Arai ,  Takafumi Chiba ,  Hisato Uetsuka

IPC分类号： G02B628

CPC分类号： G02B6/12007 ,  G02B6/2813 ,  G02B2006/12164

摘要： In the optical multiplexer/demultiplexer according to the invention, an MMI (multi mode interference) coupler having a percentage coupling of about 50% is used as first and second optical couplers, and a directional coupler having a percentage coupling of less than 10% is used as third and fourth optical couplers. By virtue of this constitution, the optical multiplexer/demultiplexer according to the invention has a small dependency upon wavelength and can be used in a wide waveband, is less susceptible to a preparation error, and, at the same time, has good wavelength flatness in passband and a wide rejection band.

摘要翻译： 在根据本发明的光复用器/解复用器中，使用具有约50％的百分比耦合的MMI（多模干扰）耦合器作为第一和第二光耦合器，并且具有小于10％的百分比耦合的定向耦合器是 用作第三和第四光耦合器。 根据这种结构，根据本发明的光信号多路复用器/解复用器对波长的依赖性很小，并且可以用于宽波段，不易受制备误差的影响，并且同时具有良好的波长平坦度 通带和宽阻带。

公开(公告)号：US06947631B2

公开(公告)日：2005-09-20

申请号：US10291064

申请日：2002-11-08

申请人： Hideaki Arai ,  Takafumi Chiba ,  Hisato Uetsuka ,  Masahiro Hikage

发明人： Hideaki Arai ,  Takafumi Chiba ,  Hisato Uetsuka ,  Masahiro Hikage

IPC分类号： G02B6/12 ,  G02B6/34 ,  H04J14/02 ,  G02B6/28 ,  G02B6/26 ,  G02B6/42

CPC分类号： G02B6/2938 ,  G02B6/12004 ,  G02B6/29355 ,  G02B2006/12159 ,  H04J14/02

摘要： A waveguide-type optical multiplexer/demultiplexer with low crosstalk characteristics and reduced wavelength dispersion is provided. A waveguide-type optical multiplexer/demultiplexer comprising, first, second and third optical multiplexer/demultiplexer circuits connected in multistage, each multiplexer/demultiplexer circuit has four input-output ports, third input-output port of first optical multiplexer/demultiplexer circuit is connected to third input-output port of second optical multiplexer/demultiplexer circuit, and fourth input-output port of first optical multiplexer/demultiplexer circuit is connected to fourth input-output port of third optical multiplexer/demultiplexer circuit, when wavelength division multiplex signals having wavelength λ1, λ2, λ3, λ4, λ5, λ6 . . . are input through first input-output port of first optical multiplexer/demultiplexer circuit, multiplex signals of odd wavelength λ1, λ3, λ5 . . . are output from first input-output port of second optical multiplexer/demultiplexer circuit, and multiplex signals of even wavelength λ2, λ4, λ6 . . . are output from first input-output port of third optical multiplexer/demultiplexer circuit.

摘要翻译： 提供具有低串扰特性和降低的波长色散的波导型光信号多路复用器/解复用器。 一种波导型光复用器/解复用器，包括以多级连接的第一，第二和第三光复用器/解复用器电路，每个多路复用器/解复用器电路具有四个输入输出端口，第一光复用器/解复用器电路的第三输入 - 输出端口被连接 到第三光复用器/解复用器电路的第三输入输出端口，第三光复用器/解复用器电路的第四输入输出端口连接到第三光复用器/解复用器电路的第四输入 - 输出端口，当具有波长 λ1，λ2，λ3，λ4，λ5， λ6。 。 。 通过第一光复用器/解复用器电路的第一输入 - 输出端口输入，奇数波长λ1，λ3，λ5， 。 。 。 从第二光复用器/解复用器电路的第一输入 - 输出端口输出，以及偶数波长λ2，λ4，λ6的多路复用信号 >。 。 。 从第三光复用器/解复用器电路的第一输入 - 输出端口输出。

公开(公告)号：US6093334A

公开(公告)日：2000-07-25

申请号：US441681

申请日：1999-11-17

申请人： Ryoji Suzuki ,  Hisato Uetsuka ,  Dai Kobayashi ,  Hideaki Arai ,  Korenori Tamura

发明人： Ryoji Suzuki ,  Hisato Uetsuka ,  Dai Kobayashi ,  Hideaki Arai ,  Korenori Tamura

IPC分类号： G02B6/13 ,  G02B6/12 ,  G02F1/01 ,  C03C23/00 ,  B29B11/00 ,  G02B6/10

CPC分类号： G02F1/011 ,  G02B2006/12107 ,  G02F1/0147 ,  G02F2001/0113 ,  G02F2201/30 ,  G02F2201/307

摘要： A glass wave guide element, which is small in size and amenable to integration and mass-production, and a method of manufacturing the glass wave guide element are provided. The glass wave guide element includes a core having a diffraction grating formed on an under cladding, an over cladding covering the core and a heater for changing the Bragg wavelength of the diffraction grating, the heater being arranged on the over cladding. The core and a central portion of both claddings in a surrounding portion around the core are formed in a state of being continuously separated along a longitudinal direction of the core from the substrate through a gap, and the core and the surrounding portion around the core are formed in a state of being spatially intermittently separated in a width direction of the core from a surrounding portion of both claddings through a gap. The wave guide is formed by etching to form gaps spaced intermittently along both sides of a core with under cladding and over cladding, and then removing a patterned silicon film from underneath the core.

摘要翻译： 本发明提供一种玻璃波导元件，其尺寸小，易于集成和批量生产，以及制造玻璃波导元件的方法。 玻璃波导元件包括具有形成在下包层上的衍射光栅的芯，覆盖芯的上包层和用于改变衍射光栅的布拉格波长的加热器，加热器布置在外包层上。 在围绕芯部的周围部分中的两个包层的芯部和中心部分形成为沿芯部的纵向方向通过间隙从基板连续分离的状态，并且芯部和芯周围的周围部分是 形成在通过间隙在两个包层的周围部分沿着芯的宽度方向在空间上间歇地分离的状态。 通过蚀刻形成波导，以形成沿着具有下包层和外包层的芯的两侧间歇间隔的间隙，然后从芯下方去除图案化的硅膜。