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1. 发明授权

US06937797B2 Planar lightwave circuit and optical circuit 失效
标题翻译：平面光波电路和光电路
公开(公告)号：US06937797B2
公开(公告)日：2005-08-30
申请号：US09950635
申请日：2001-09-13
申请人： Takayuki Mizuno , Tsutomu Kitoh , Yasuyuki Inoue , Yoshinori Hibino , Mikitaka Itoh , Takashi Saida , Yasuhiro Hida
发明人： Takayuki Mizuno , Tsutomu Kitoh , Yasuyuki Inoue , Yoshinori Hibino , Mikitaka Itoh , Takashi Saida , Yasuhiro Hida
IPC分类号： G02B6/12 , G02B6/122 , G02B6/132 , G02B6/136 , G02B6/34 , G02B6/26
CPC分类号： G02B6/12011 , G02B6/12016 , G02B6/12023 , G02B6/1228 , G02B6/132 , G02B6/136 , G02B2006/121 , G02B2006/12176
摘要： A planar lightwave circuit is provided. The planar lightwave circuit includes a waveguide and a spotsize converter which is a part of the waveguide, wherein a core is embedded in a cladding in the waveguide, and the spotsize converter is located near an end face of a substrate on which the planar lightwave circuit is formed, the spotsize converter including: a core width fine-tuning part in an end face side of the substrate; and a core width converting part which follows the core width fine-tuning part; wherein core width of the spotsize converter is minimum at an end face of the substrate, a mean taper angle θ1 of the core width fine-tuning part is larger than 0° and smaller than a mean taper angle θ2 of the core width converting part.
摘要翻译：提供平面光波电路。平面光波电路包括作为波导的一部分的波导和斑点转换器，其中芯体嵌入在波导中的包层中，并且斑点转换器位于基板的端面附近，在该基板上的平面光波电路所述斑点转换器包括：在所述基板的端面侧的芯宽度微调部; 以及沿着芯宽微调部分的芯宽转换部分; 其中斑点转换器的芯宽度在基板的端面处最小，芯宽度微调部分的平均锥角θ1大于0°并且小于平均锥角核心宽度转换部分的θ2/2。

2. 发明授权

US06775454B2 Silica-based optical waveguide circuit and fabrication method thereof 失效
标题翻译：硅基光波导电路及其制造方法
公开(公告)号：US06775454B2
公开(公告)日：2004-08-10
申请号：US10142130
申请日：2002-05-09
申请人： Mikitaka Itoh , Takashi Saida , Yasuhiro Hida , Yasuyuki Inoue
发明人： Mikitaka Itoh , Takashi Saida , Yasuhiro Hida , Yasuyuki Inoue
IPC分类号： G02B626
CPC分类号： G02B6/1228 , G02B6/132 , G02B2006/121 , G02B2006/12195
摘要： A silica-based optical waveguide circuit serves to reduce the time required to production while allowing a spot size converting function to work sufficiently. In a silica-based optical waveguide circuit comprising an input/output waveguide core formed to be thicker than an waveguide core and a tapered portion for connecting the input/output waveguide core and the waveguide core, wherein the waveguide circuit further has a core layer at each side of the input/output waveguide core, a thickness T of the core layer at the side of the input/output waveguide core is smaller than the thickness H of the input/output waveguide core.
摘要翻译：二氧化硅基光波导电路用于减少制作时间，同时允许光点尺寸转换功能充分发挥作用。在包括形成为比波导芯厚的输入/输出波导芯和用于连接输入/输出波导芯和波导芯的锥形部分的二氧化硅基光波导电路中，其中波导电路还具有芯层输入/输出波导芯的每一侧，芯层在输入/输出波导芯一侧的厚度T小于输入/输出波导芯的厚度H.

3. 发明申请

US20110116802A1 Optical Wavelength Multiplexing/ De-multiplexing Circuit 有权
标题翻译：光波长复用/解复用电路
公开(公告)号：US20110116802A1
公开(公告)日：2011-05-19
申请号：US13054158
申请日：2009-06-30
申请人： Shin Kamei , Tsutomu Kitoh , Masaki Kohtoku , Tomohiro Shibata , Takuya Tanaka , Yasuyuki Inoue , Mikitaka Itoh
发明人： Shin Kamei , Tsutomu Kitoh , Masaki Kohtoku , Tomohiro Shibata , Takuya Tanaka , Yasuyuki Inoue , Mikitaka Itoh
IPC分类号： H04J14/02
CPC分类号： G02B6/12028 , G02B6/12019 , G02B6/29352 , G02B6/29398
摘要： An optical wavelength multiplexing/de-multiplexing circuit having a low loss and a flat transmission spectrum is provided. The optical wavelength multiplexing/de-multiplexing circuit compensates a temperature dependence of a center transmission wavelength which remains in an athermal AWG, and has an excellent accuracy of the center transmission wavelength in a whole operating temperature range or has a comparatively wide operable temperature range. The temperature dependence of the transmission wavelength in the athermal MZI is modulated and set so as to cancel the temperature dependence of the center wavelength which remains in the athermal AWG. The present invention focuses particularly on an optical coupler in the MZI and modulates the temperature dependence of the transmission wavelength in the MZI by providing the optical coupler itself with a mechanism which changes a phase difference between two outputs by temperature.
摘要翻译：提供具有低损耗和平坦透射光谱的光波长多路复用/解复用电路。光波长复用/解复用电路补偿保持在无热AWG中的中心透射波长的温度依赖性，并且在整个工作温度范围内具有优异的中心透射波长的精度或具有相当宽的可操作温度范围。在无热MZI中的透射波长的温度依赖性被调制和设定，以抵消保持在无热AWG中的中心波长的温度依赖性。本发明特别着重于MZI中的光耦合器，并且通过为光耦合器本身提供一种通过温度改变两个输出之间的相位差的机构来调制MZI中的透射波长的温度依赖性。

4. 发明授权

US08369666B2 Optical wavelength multiplexing/ de-multiplexing circuit 有权
标题翻译：光波长复用/解复用电路
公开(公告)号：US08369666B2
公开(公告)日：2013-02-05
申请号：US13054158
申请日：2009-06-30
申请人： Shin Kamei , Tsutomu Kitoh , Masaki Kohtoku , Tomohiro Shibata , Takuya Tanaka , Yasuyuki Inoue , Mikitaka Itoh
发明人： Shin Kamei , Tsutomu Kitoh , Masaki Kohtoku , Tomohiro Shibata , Takuya Tanaka , Yasuyuki Inoue , Mikitaka Itoh
IPC分类号： G02B6/34 , H04J14/02
CPC分类号： G02B6/12028 , G02B6/12019 , G02B6/29352 , G02B6/29398
摘要： An optical wavelength multiplexing/de-multiplexing circuit having a low loss and a flat transmission spectrum is provided. The optical wavelength multiplexing/de-multiplexing circuit compensates a temperature dependence of a center transmission wavelength which remains in an athermal AWG, and has an excellent accuracy of the center transmission wavelength in a whole operating temperature range or has a comparatively wide operable temperature range. The temperature dependence of the transmission wavelength in the athermal MZI is modulated and set so as to cancel the temperature dependence of the center wavelength which remains in the athermal AWG. The present invention focuses particularly on an optical coupler in the MZI and modulates the temperature dependence of the transmission wavelength in the MZI by providing the optical coupler itself with a mechanism which changes a phase difference between two outputs by temperature.
摘要翻译：提供具有低损耗和平坦透射光谱的光波长多路复用/解复用电路。光波长复用/解复用电路补偿保持在无热AWG中的中心透射波长的温度依赖性，并且在整个工作温度范围内具有优异的中心透射波长精度或具有相对较宽的可操作温度范围。在无热MZI中的透射波长的温度依赖性被调制和设定，以抵消保持在无热AWG中的中心波长的温度依赖性。本发明特别着重于MZI中的光耦合器，并且通过为光耦合器本身提供一种通过温度改变两个输出之间的相位差的机构来调制MZI中的透射波长的温度依赖性。

5. 发明授权

US06580862B2 Optical waveguide circuit 失效
公开(公告)号：US06580862B2
公开(公告)日：2003-06-17
申请号：US10026084
申请日：2001-12-21
申请人： Toshimi Kominato , Akio Sugita , Mikitaka Itoh , Yasuyuki Inoue , Yasuhiro Hida
发明人： Toshimi Kominato , Akio Sugita , Mikitaka Itoh , Yasuyuki Inoue , Yasuhiro Hida
IPC分类号： G02B610
CPC分类号： G02B6/12011 , G02B6/105 , G02B6/12023 , G02B6/122 , G02B6/2813 , G02B2006/121
摘要： An optical waveguide circuit is provided that can reduce or eliminate polarization dependence by reducing or eliminating birefringence. A substrate consists of a silicon substrate, and a cladding and a core are composed of silica-based glass. The core has a multilayer structure composed of a few types of layers with different refractive indices such as first core layers and second core layers stacked in the direction parallel to the substrate. As for the birefringence of the waveguide, the geometrical birefringence caused by the multilayer structure is canceled out by the other birefringence, thereby being able to reduce or eliminate the birefringence of the waveguide.

6. 发明授权

US06735358B2 Optical multiplexer and optical demultiplexer 失效
标题翻译：光复用器和光解复用器
公开(公告)号：US06735358B2
公开(公告)日：2004-05-11
申请号：US10067065
申请日：2002-02-04
申请人： Tsutomu Kitoh , Yasuyuki Inoue , Manabu Oguma , Yoshinori Hibino , Kaname Jinguji
发明人： Tsutomu Kitoh , Yasuyuki Inoue , Manabu Oguma , Yoshinori Hibino , Kaname Jinguji
IPC分类号： G02B628
CPC分类号： G02B6/2938 , G02B6/12007 , G02B6/29355 , G02B6/29394 , G02B2006/12159 , H04J14/02
摘要： The present invention provides an optical demultiplexer and an optical multiplexer the transmission characteristics of which are unlikely to be affected by fabrication errors and which have small group delay dispersion. A cross output port (X-OUT) of a second optical demultiplexer element (DEMUX) is selected, and a through output port (T-OUT) of a third DEMUX is selected. A T-OUT of a first DEMUX has a passband equal to the X-OUT of the second DEMUX, and a X-OUT of the first DEMUX has a passband equal to the T-OUT of the third DEMUX. The T-OUT of the first DEMUX has group delay characteristics opposite to those of the X-OUT of the second DEMUX, and the X-OUT of the first DEMUX has group delay characteristics opposite to those of the T-OUT of the third DEMUX.
摘要翻译：本发明提供一种光解复用器和光复用器，其传输特性不太可能受制造误差的影响，并且具有较小的组延迟色散。选择第二光解复用器元件（DEMUX）的交叉输出端口（X-OUT），并且选择第三DEMUX的直通输出端口（T-OUT）。第一DEMUX的T-OUT具有等于第二DEMUX的X-OUT的通带，并且第一DEMUX的X-OUT具有等于第三DEMUX的T-OUT的通带。第一DEMUX的T-OUT具有与第二DEMUX的X-OUT相反的组延迟特性，并且第一DEMUX的X-OUT具有与第三DEMUX的T-OUT相反的组延迟特性。

7. 发明授权

US07400800B2 Arrayed waveguide grating type optical multiplexer/demultiplexer circuit 失效
标题翻译：阵列波导光栅类型的光复用器/解复用器电路
公开(公告)号：US07400800B2
公开(公告)日：2008-07-15
申请号：US10540789
申请日：2003-12-26
申请人： Tsutomu Kitoh , Yasuyuki Inoue , Mikitaka Ito , Yoshinori Hibino , Akimasa Kaneko
发明人： Tsutomu Kitoh , Yasuyuki Inoue , Mikitaka Ito , Yoshinori Hibino , Akimasa Kaneko
IPC分类号： G02B6/26
CPC分类号： G02B6/12016
摘要： An arrayed waveguide grating type optical multiplexer/demultiplexer circuit in which wavelength dispersion is reduced. An input wave guide (1), a first slab waveguide (2), an arrayed waveguide (3), a second slab waveguide (4) and an output waveguide (5) are connected sequentially. Furthermore, a parabola waveguide (6) is provided between the input waveguide (1) and the first slab waveguide (2), and a taper waveguide (7) is provided between the second slab waveguide (4) and the output waveguide (5). A parabola waveguide length Z0 exists in a range Za,0=Z0=Zp,0 determined by a parabola waveguide length Za,0 where the ratio of absolute amplitude between the main peak and the first side peak in the field distribution of far-field of the parabola waveguide (6) has an upper limit of 0.217, and a parabola waveguide length Zp,0 where the relative phase of the main peak and the first side peak in the field distribution of far-field has a lower limit of 3.14 radian.
摘要翻译：波长分散减小的阵列波导光栅类型的光信号多路复用器/多路分离器电路。依次连接输入波导（1），第一平板波导（2），阵列波导（3），第二平板波导（4）和输出波导（5）。此外，在输入波导（1）和第一平板波导（2）之间设置有抛物线波导（6），在第二平板波导（4）和输出波导（5）之间设置锥形波导（7）。抛物线波导长度Z 0存在于范围Z a a 0，Z 0，Z 0，Z 0，...，Z 0，由抛物线波导长度Z a a 0确定，其中抛物线波导（6）的远场的主峰和第一侧峰之间的绝对幅度的比值具有上极限为0.217，抛物线波导长度Z
0，其中远场的场分布中的主峰和第一侧峰的相对相位具有3.14弧度的下限。

8. 发明申请

US20060023989A1 Wavelength multiplexer/demultiplexer 有权
标题翻译：波长多路复用器/解复用器
公开(公告)号：US20060023989A1
公开(公告)日：2006-02-02
申请号：US10534434
申请日：2004-09-10
申请人： Masashiro Yanagisawa , Taisuke Oguchi , Yasuyuki Inoue , Yoshinori Hibino , Yasuhiro Hida , Motohava Ishii
发明人： Masashiro Yanagisawa , Taisuke Oguchi , Yasuyuki Inoue , Yoshinori Hibino , Yasuhiro Hida , Motohava Ishii
IPC分类号： G02B6/12
CPC分类号： G02B6/29368 , G02B6/12007 , G02B6/2938 , G02B2006/12109
摘要： Disclosed is a wavelength multi/demultiplexer for separating two wavelength bands with a narrow wavelength spacing. A dielectric multilayer filter is provided in an intersection portion where two optical waveguides intersect each other and separates incident light to the dielectric multilayer filter to transmitted light and reflected light. Here, the distance X from the multilayer surface on the light-incident side of the dielectric multilayer to the central intersection point of the two intersecting optical waveguides is arranged to satisfy 0≦X≦d/2 (where “d” represents the thickness of the dielectric multilayer). With this configuration, a multi/demultiplexer can be realized that shows good wavelength response without spectral degradation even for two wavelengths having narrow wavelength spacing.
摘要翻译：公开了用于分离窄波长间隔的两个波长带的波长多路复用器。在两个光波导彼此交叉的交叉部分中设置有电介质多层滤波器，将入射光分离到电介质多层滤波器以透射光和反射光。这里，从电介质多层体的光入射侧的多层表面到两个相交的光波导的中心交点的距离X被设置为满足0 <= X <= d / 2（其中，“d”表示电介质多层膜的厚度）。利用这种配置，即使对于具有窄波长间隔的两个波长，也可以实现显示良好的波长响应而没有频谱衰减的多路分离器。

9. 发明授权

US07313297B2 Wavelength multi/demultiplexer 有权
标题翻译：波长多路复用器
公开(公告)号：US07313297B2
公开(公告)日：2007-12-25
申请号：US10534434
申请日：2004-09-10
申请人： Masahiro Yanagisawa , Taisuke Oguchi , Yasuyuki Inoue , Yoshinori Hibino , Yasuhiro Hida , Motohaya Ishii
发明人： Masahiro Yanagisawa , Taisuke Oguchi , Yasuyuki Inoue , Yoshinori Hibino , Yasuhiro Hida , Motohaya Ishii
IPC分类号： G02B6/26
CPC分类号： G02B6/29368 , G02B6/12007 , G02B6/2938 , G02B2006/12109
摘要： Disclosed is a wavelength multi/demultiplexer for separating two wavelength bands with a narrow wavelength spacing. A dielectric multilayer filter is provided in an intersection portion where two optical waveguides intersect each other and separates incident light to the dielectric multilayer filter to transmitted light and reflected light. Here, the distance X from the multilayer surface on the light-incident side of the dielectric multilayer to the central intersection point of the two intersecting optical waveguides is arranged to satisfy 0≦X≦d/2 (where “d” represents the thickness of the dielectric multilayer). With this configuration, a multi/demultiplexer can be realized that shows good wavelength response without spectral degradation even for two wavelengths having narrow wavelength spacing.
摘要翻译：公开了用于分离窄波长间隔的两个波长带的波长多路复用器。在两个光波导彼此交叉的交叉部分中设置有电介质多层滤波器，将入射光分离到电介质多层滤波器以透射光和反射光。这里，从电介质多层体的光入射侧的多层表面到两个相交的光波导的中心交点的距离X被设置为满足0 <= X <= d / 2（其中，“d”表示电介质多层膜的厚度）。利用这种配置，即使对于具有窄波长间隔的两个波长，也可以实现显示良好的波长响应而没有频谱衰减的多路分离器。

10. 发明授权

US06757454B2 Polarization desensitized optical waveguide interferometer 有权
标题翻译：极化脱敏光波导干涉仪
公开(公告)号：US06757454B2
公开(公告)日：2004-06-29
申请号：US09958496
申请日：2002-01-29
申请人： Yasuyuki Inoue , Yasuaki Hashizume , Yoshinori Hibino , Akio Sugita , Yasuhiro Hida , Hiroshi Takahashi
发明人： Yasuyuki Inoue , Yasuaki Hashizume , Yoshinori Hibino , Akio Sugita , Yasuhiro Hida , Hiroshi Takahashi
IPC分类号： G02B626
CPC分类号： G02B6/12011 , G02B6/12023 , G02B6/126 , G02B2006/12159
摘要： A low-cost, high-reliability polarization-independent optical waveguide interferometer is proposed which does not bring about any additional job involved in the insertion of a half-wave plate or excess loss of light. In an optical multi/demultiplexer utilizing optical interference of light waves passing through a plurality of optical waveguides with different lengths, such as an AWG and a Mach-Zehnder interferometer, longitudinal integral values of birefringence values of the individual waveguides, which values are variable or invariable along the waveguides, are made equal for all waveguides 201 and 202. Thus, simply varying the waveguide width can implement polarization-independent operation, or on the contrary implement a polarization beam splitter. For example, the polarization-independent can be implemented by making the core widths, which are averaged in a longitudinal direction of a plurality of optical waveguides with different lengths, wider in a shorter optical waveguide, and narrower in a longer optical waveguide.
摘要翻译：提出了一种低成本，高可靠性的偏振无关光波导干涉仪，其不会在插入半波片或过多的光线损失方面带来任何额外的工作。在利用通过具有不同长度的多个光波导的光波的光学干涉（例如AWG和Mach-Zehnder干涉仪）的光学多路复用器中，单个波导的双折射值的纵向积分值是可变的或沿着波导不变的所有波导201和202都相等。因此，简单地改变波导宽度可以实现偏振无关操作，或者相反地实现偏振分束器。例如，可以通过使得在较短的光波导中的具有不同长度的多个光波导的纵向方向上的平均化的芯宽度更宽，并且在较长的光波导中更窄，来实现偏振无关。

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