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1. 发明授权

US07389033B2 Planar lightwave circuit type variable optical attenuator 有权
标题翻译：平面光波电路式可变光衰减器
公开(公告)号：US07389033B2
公开(公告)日：2008-06-17
申请号：US10598856
申请日：2006-01-13
申请人： Yasuaki Hashizume , Yasuyuki Inoue , Takashi Saida , Akio Sugita
发明人： Yasuaki Hashizume , Yasuyuki Inoue , Takashi Saida , Akio Sugita
IPC分类号： G02B6/00
CPC分类号： G02F1/225 , G02F2203/06 , G02F2203/48
摘要： A planar lightwave circuit type variable optical attenuator with a small polarization dependent loss is provided. By setting the waveguide birefringence (absolute value) in first and second optical coupler sections equal to or greater than 3.5×10−4, the polarization mode coupling is made equal to or less than −25 dB, and the effect of the polarization dependence caused by the polarization mode coupling at the cross port of the first and second optical couplers is suppressed. In addition to or independently of this, the arm waveguide length can be designed to be equal to an integer multiple of the optical beat length obtained by dividing a used optical wavelength by the waveguide birefringence.
摘要翻译：提供了具有小偏振相关损耗的平面光波回路型可变光衰减器。通过将第一和第二光耦合器部分中的波导双折射（绝对值）设置为等于或大于3.5×10 -4，则使偏振模式耦合等于或小于-25dB，并且抑制由第一和第二光耦合器的交叉口处的偏振模式耦合引起的偏振相关性的影响。除了或独立于此，臂波导长度可以被设计为等于通过将所使用的光波长除以波导双折射而获得的光学拍子长度的整数倍。

2. 发明申请

US20070212012A1 Planar Lightwave Circuit Type Variable Optical Attenuator 有权
标题翻译：平面光波电路式可变光衰减器
公开(公告)号：US20070212012A1
公开(公告)日：2007-09-13
申请号：US10598856
申请日：2006-01-13
申请人： Yasuaki Hashizume , Yasuyuki Inoue , Takashi Saida , Akio Sugita
发明人： Yasuaki Hashizume , Yasuyuki Inoue , Takashi Saida , Akio Sugita
IPC分类号： G02B6/00
CPC分类号： G02F1/225 , G02F2203/06 , G02F2203/48
摘要： A planar lightwave circuit type variable optical attenuator with a small polarization dependent loss is provided. By setting the waveguide birefringence (absolute value) in first and second optical coupler sections equal to or greater than 3.5×10−4, the polarization mode coupling is made equal to or less than −25 dB, and the effect of the polarization dependence caused by the polarization mode coupling at the cross port of the first and second optical couplers is suppressed. In addition to or independently of this, the arm waveguide length can be designed to be equal to an integer multiple of the optical beat length obtained by dividing a used optical wavelength by the waveguide birefringence.
摘要翻译：提供了具有小偏振相关损耗的平面光波回路型可变光衰减器。通过将第一和第二光耦合器部分中的波导双折射（绝对值）设置为等于或大于3.5×10 -4，则使偏振模式耦合等于或小于-25dB，并且抑制由第一和第二光耦合器的交叉口处的偏振模式耦合引起的偏振相关性的影响。除了或独立于此，臂波导长度可以被设计为等于通过将所使用的光波长除以波导双折射而获得的光学拍子长度的整数倍。

3. 发明授权

US08346030B2 Polarization-independent waveguide-type optical interference circuit 有权
标题翻译：偏振无关波导型光干涉电路
公开(公告)号：US08346030B2
公开(公告)日：2013-01-01
申请号：US12673473
申请日：2007-08-24
申请人： Yasuaki Hashizume , Manabu Oguma , Takashi Saida , Masaki Kotoku , Takayuki Mizuno
发明人： Yasuaki Hashizume , Manabu Oguma , Takashi Saida , Masaki Kotoku , Takayuki Mizuno
IPC分类号： G02B6/00
CPC分类号： G02B6/12007 , G02B6/272 , G02B6/2766 , G02B6/29302 , G02B6/29352 , G02B2006/12038
摘要： A Mach-Zehnder interferometer circuit (700) is provided with two couplers (722, 724) and two arm waveguides (706, 708) connecting the couplers with each other, each fabricated on a substrate, in which a polarization rotation device (732) is disposed in a groove dividing each of the two arm waveguides into two, the polarization rotation device (732) for converting vertically polarized light into horizontally polarized light, and birefringence is adjusted by performing laser irradiation or the like partially into at least one of the two arm waveguides such that a difference between birefringence values divided by an optical wavelength to be used is within a range of 2 m-0.2 to 2 m+0.2 (m is an integer including zero), the birefringence values being those integrated linearly along the respective two arm waveguides in an optical signal travelling direction.
摘要翻译：马赫 - 策德尔干涉仪电路（700）设置有两个耦合器（722,724）和两个彼此连接的耦合器的臂波导（706,708），每个制造在基板上，偏振旋转装置（732）设置在将两个臂波导中的每一个分成两个的凹槽中，用于将垂直偏振光转换成水平偏振光的偏振旋转装置（732），并且通过将激光照射等部分地进行至少一个两臂波导使得双折射值除以所使用的光波长之间的差异在2m-0.2-2m + 0.2（m是包括零的整数）的范围内，双折射值是沿着相应的两个臂波导在光信号行进方向上。

4. 发明申请

US20110103736A1 POLARIZATION-INDEPENDENT WAVEGUIDE-TYPE OPTICAL INTERFERENCE CIRCUIT 有权
标题翻译：极化独立的波导型光纤干涉电路
公开(公告)号：US20110103736A1
公开(公告)日：2011-05-05
申请号：US12673473
申请日：2007-08-24
申请人： Yasuaki Hashizume , Manabu Oguma , Takashi Saida , Masaki Kotoku , Takayuki Mizuno
发明人： Yasuaki Hashizume , Manabu Oguma , Takashi Saida , Masaki Kotoku , Takayuki Mizuno
IPC分类号： G02B6/00 , G02B6/12
CPC分类号： G02B6/12007 , G02B6/272 , G02B6/2766 , G02B6/29302 , G02B6/29352 , G02B2006/12038
摘要： A Mach-Zehnder interferometer circuit (700) is provided with two couplers (722, 724) and two arm waveguides (706, 708) connecting the couplers with each other, each fabricated on a substrate, in which a polarization rotation device (732) is disposed in a groove dividing each of the two arm waveguides into two, the polarization rotation device (732) for converting vertically polarized light into horizontally polarized light, and birefringence is adjusted by performing laser irradiation or the like partially into at least one of the two arm waveguides such that a difference between birefringence values divided by an optical wavelength to be used is within a range of 2m−0.2 to 2m+0.2 (m is an integer including zero), the birefringence values being those integrated linearly along the respective two arm waveguides in an optical signal travelling direction.
摘要翻译：马赫 - 策德尔干涉仪电路（700）设置有两个耦合器（722,724）和两个彼此连接的耦合器的臂波导（706,708），每个制造在基板上，偏振旋转装置（732）设置在将两个臂波导中的每一个分成两个的凹槽中，用于将垂直偏振光转换成水平偏振光的偏振旋转装置（732），并且通过将激光照射等部分地进行至少一个双臂波导使得双折射值除以所使用的光波长之间的差异在2m-0.2-2m + 0.2（m是包括零的整数）的范围内，双折射值是沿着相应的两个线性地积分的那些臂波导在光信号传播方向上。

5. 发明授权

US08467642B2 Waveguide type optical device 有权
标题翻译：波导型光学器件
公开(公告)号：US08467642B2
公开(公告)日：2013-06-18
申请号：US12918406
申请日：2009-02-19
申请人： Daisuke Ogawa , Takashi Saida , Yuji Moriya , Shigeo Nagashima , Yasuyuki Inoue , Shin Kamei
发明人： Daisuke Ogawa , Takashi Saida , Yuji Moriya , Shigeo Nagashima , Yasuyuki Inoue , Shin Kamei
IPC分类号： G02B6/26 , G02B6/42 , G02B6/34
CPC分类号： G02B6/12026 , G02B6/12011 , G02B6/12014 , G02B6/12023
摘要： An arrayed waveguide grating optical multiplexer/demultiplexer according to the present invention including an input channel waveguide, an input slab waveguide, an arrayed waveguide, a polarization dependence eliminating means, an output slab waveguide, a temperature compensating means, and an output channel waveguide is characterized in that the temperature compensating means compensates for the temperature dependence of the optical path lengths in the channel waveguides of the arrayed waveguide, and the polarization dependence eliminating means eliminates the temperature dependence and the polarization dependence of the arrayed waveguide grating optical multiplexer/demultiplexer at the same time.
摘要翻译：根据本发明的阵列波导光栅光复用器/解复用器包括输入通道波导，输入平板波导，阵列波导，偏振相关性消除装置，输出平板波导，温度补偿装置和输出通道波导其特征在于，温度补偿装置补偿阵列波导的通道波导中光路长度的温度依赖性，并且偏振相关性消除装置消除阵列波导光栅光复用器/解复用器的温度依赖性和偏振度依赖性同一时间。

6. 发明授权

US06823094B2 Interferometer and its fabrication method 有权
标题翻译：干涉仪及其制作方法
公开(公告)号：US06823094B2
公开(公告)日：2004-11-23
申请号：US10054618
申请日：2002-01-22
申请人： Takashi Goh , Makoto Abe , Yasuyuki Inoue , Masayuki Okuno , Takashi Saida
发明人： Takashi Goh , Makoto Abe , Yasuyuki Inoue , Masayuki Okuno , Takashi Saida
IPC分类号： G02B612
CPC分类号： G02F1/2255 , G02B6/12007 , G02B2006/12166
摘要： An interferometer includes a waveguide core, and thin film heaters with widths W1 and W2. The thin film heaters are mounted directly above the waveguide core, and operate as two types of different annealing regions. The annealing, which is carried out by supplying current to the thin film heaters, can alter the quality of the cladding, and change the stress applied on the waveguide core, thereby making it possible to control the polarization dependency. Thus changing the width of the thin film heaters and/or the amount of the supply current thereto enables the permanent control of the effective refractive index (birefringence index) independently in the transverse electric polarization mode and the transverse magnetic polarization mode. This enables the transverse electric polarization mode to be adjusted to a phase difference of &lgr;/2, and the transverse magnetic polarization mode to a phase difference of zero.
摘要翻译：干涉仪包括波导芯和具有宽度W1和W2的薄膜加热器。薄膜加热器直接安装在波导芯上方，并作为两种不同的退火区域运行。通过向薄膜加热器供给电流进行的退火可以改变包层的质量，并且改变施加在波导芯上的应力，从而可以控制偏振依赖性。因此，通过改变薄膜加热器的宽度和/或其电流量，能够在横向电极化模式和横向磁极化模式中独立地有效地控制有效折射率（双折射率）。这使得能够将横向电极化模式调整为λ/ 2的相位差，将横向磁极化模式调整为零相位差。

7. 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.

8. 发明申请

US20100322556A1 WAVEGUIDE TYPE OPTICAL DEVICE 有权
标题翻译：波导型光学器件
公开(公告)号：US20100322556A1
公开(公告)日：2010-12-23
申请号：US12918406
申请日：2009-02-19
申请人： Daisuke Ogawa , Takashi Saida , Yuji Moriya , Shigeo Nagashima , Yasuyuki Inoue , Shin Kamei
发明人： Daisuke Ogawa , Takashi Saida , Yuji Moriya , Shigeo Nagashima , Yasuyuki Inoue , Shin Kamei
IPC分类号： G02B6/26
CPC分类号： G02B6/12026 , G02B6/12011 , G02B6/12014 , G02B6/12023
摘要： An arrayed waveguide grating optical multiplexer/demultiplexer according to the present invention including an input channel waveguide, an input slab waveguide, an arrayed waveguide, a polarization dependence eliminating means, an output slab waveguide, a temperature compensating means, and an output channel waveguide is characterized in that the temperature compensating means compensates for the temperature dependence of the optical path lengths in the channel waveguides of the arrayed waveguide, and the polarization dependence eliminating means eliminates the temperature dependence and the polarization dependence of the arrayed waveguide grating optical multiplexer/demultiplexer at the same time.
摘要翻译：根据本发明的阵列波导光栅光复用器/解复用器包括输入通道波导，输入平板波导，阵列波导，偏振相关性消除装置，输出平板波导，温度补偿装置和输出通道波导其特征在于，温度补偿装置补偿阵列波导的通道波导中光路长度的温度依赖性，并且偏振相关性消除装置消除阵列波导光栅光复用器/解复用器的温度依赖性和偏振度依赖性同一时间。

9. 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。

10. 发明授权

US08948546B2 Optical frequency shifter and optical modulator using the same 有权
标题翻译：光移频器和使用其的光调制器
公开(公告)号：US08948546B2
公开(公告)日：2015-02-03
申请号：US13984480
申请日：2012-02-15
申请人： Takashi Saida , Hiroshi Yamazaki , Takashi Goh , Ken Tsuzuki , Shinji Mino
发明人： Takashi Saida , Hiroshi Yamazaki , Takashi Goh , Ken Tsuzuki , Shinji Mino
IPC分类号： G02F1/01 , H04B10/50 , G02B6/26 , G02B6/12 , G02F1/03 , H04B10/548
CPC分类号： G02F1/011 , H04B10/5053 , H04B10/548
摘要： An object of the present invention is to provide a temperature-independent optical frequency shifter for generating sub-carriers with a miniaturizable configuration, as well as to provide an all-optical OFDM modulator using the same that is compact, has low temperature dependence, and is even compatible with different frequency grids. Provided is an optical frequency shifter and an optical modulator using the same, the optical frequency shifter comprises one input optical port, a 1-input, 2-output optical coupler optically connected thereto, two Mach-Zehnder modulation units individually optically connected to the two outputs thereof, a 2-input, 2-output optical coupler optically connected to the individual outputs thereof, and two output optical ports optically connected to the outputs thereof, wherein the two Mach-Zehnder modulation units are driven by periodic waveforms at the same frequency whose phases differ from each other by (2p+1)π/2 (p: integer).
摘要翻译：本发明的目的是提供一种用于产生具有小型化配置的子载波的与温度无关的光学移频器，并且提供使用紧凑的，具有低温度依赖性的全光OFDM调制器，以及甚至兼容不同的频率网格。提供一种光学移频器和使用其的光调制器，该光学移频器包括一个输入光端口，与其光学连接的1输入2输出光耦合器，两个马赫 - 曾德调制单元，其光学连接到两个光耦合到其各个输出的2输入2输出光耦合器和与其输出光学连接的两个输出光端口，其中两个马赫 - 策德尔调制单元以相同频率的周期波形驱动其相位彼此相差（2p + 1）＆pgr; / 2（p：整数）。

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