专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06320888B1 Frequency stabilized laser and method for preparing thereof 失效
标题翻译：频率稳定型激光及其制备方法
公开(公告)号：US06320888B1
公开(公告)日：2001-11-20
申请号：US09156500
申请日：1998-09-18
申请人： Takuya Tanaka , Hiroshi Takahashi , Akimasa Kaneko , Akira Himeno , Yasuyuki Inoue
发明人： Takuya Tanaka , Hiroshi Takahashi , Akimasa Kaneko , Akira Himeno , Yasuyuki Inoue
IPC分类号： H01S514
CPC分类号： H01S5/146 , H01S5/02248 , H01S5/02469 , H01S5/06256 , H01S5/1039 , H01S5/141 , H01S5/4087
摘要： A frequency stabilized laser using an integrated external cavity, comprising a semiconductor laser diode and an optical waveguide installed on the same substrate, and having an optically induced grating formed in the optical waveguide suppresses mode hopping due to a temperature change to stabilize the oscillation frequencies of the laser. A material having a refractive index temperature coefficient opposite in sign to the refractive index temperature coefficient of the semiconductor laser diode is installed on that portion of the optical waveguide between the semiconductor laser diode and the optically induced grating which has been formed by removing an upper cladding and a core, or removing the upper cladding, the core, and a lower cladding.
摘要翻译：使用集成外部空腔的频率稳定化激光器，包括安装在同一基板上的半导体激光二极管和光波导，并且具有形成在光波导中的光学感应光栅，抑制由于温度变化引起的模式跳变，以使振荡频率稳定激光。具有与半导体激光二极管的折射率温度系数相反的折射率温度系数的材料安装在半导体激光二极管和通过去除上部包层而形成的光学感应光栅之间的光波导部分和芯，或去除上包层，芯和下包层。

2. 发明授权

US06304687B1 Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuit 有权
标题翻译：光波导电路，其制造方法和具有光波导电路的光波导模块
公开(公告)号：US06304687B1
公开(公告)日：2001-10-16
申请号：US09171020
申请日：1998-10-14
申请人： Yasuyuki Inoue , Akimasa Kaneko , Hiroshi Takahashi , Fumiaki Hanawa , Kuninori Hattori , Kenji Yokoyama , Senichi Suzuki , Shin Sumida , Katsunari Okamoto , Motohaya Ishii , Hiroaki Yamada , Takashi Yoshida , Koichi Arishima , Fumihiro Ebisawa , Motohiro Nakahara
发明人： Yasuyuki Inoue , Akimasa Kaneko , Hiroshi Takahashi , Fumiaki Hanawa , Kuninori Hattori , Kenji Yokoyama , Senichi Suzuki , Shin Sumida , Katsunari Okamoto , Motohaya Ishii , Hiroaki Yamada , Takashi Yoshida , Koichi Arishima , Fumihiro Ebisawa , Motohiro Nakahara
IPC分类号： G02B612
CPC分类号： G02B6/12011 , G02B6/12014 , G02B6/12023 , G02B6/12028
摘要： In a light waveguide circuit including a plurality of waveguides having different length, a material (10) having a temperature coefficient of a refractive index including a symbol different from that of a temperature coefficient of an effective refractive index of the waveguide (4) is charged into a groove (12) formed by removing the upper clad and the core from the waveguide (4), or a groove (12) formed by removing the upper clad, the core and the lower clad from the waveguide (4). A difference in length of the removed portions between adjacent waveguides is proportional to a difference in length of the waveguides which were not removed and remained.
摘要翻译：在包括具有不同长度的多个波导的光波导电路中，具有包括不同于波导（4）的有效折射率的温度系数的符号的折射率的温度系数的材料（10）被充电通过从波导（4）去除上包层和芯而形成的凹槽（12），或通过从波导（4）去除上包层，芯和下包层而形成的凹槽（12）。相邻波导之间的去除部分的长度差异与未被去除和保留的波导的长度差成比例。

3. 发明授权

US5943452A Arrayed-waveguide grating 失效
标题翻译：阵列波导光栅
公开(公告)号：US5943452A
公开(公告)日：1999-08-24
申请号：US906145
申请日：1997-08-05
申请人： Akira Himeno , Katsunari Okamoto , Hiroshi Takahashi
发明人： Akira Himeno , Katsunari Okamoto , Hiroshi Takahashi
IPC分类号： G02B6/34 , G02B6/26 , G02B6/42
CPC分类号： G02B6/12011
摘要： An arrayed waveguide grating including an input waveguide or input waveguides, an input side slab waveguide lens, arrayed waveguides, an output side slab waveguide lens, and an output waveguide or output waveguides, wherein an optical length of the arrayed waveguides monotonically increases or decreases by a constant value between adjacent waveguides; the arrayed waveguides include an input side waveguide block, an intermediate waveguide block, and an output side waveguide block; the intermediate waveguide block includes at least one fan-formed waveguide block, the fan-formed waveguide block is coaxial, equal in vertical angle, and monotonically increases or decreases by a constant value in radius between adjacent waveguides; and the input side waveguide block and the output side waveguide block are line symmetrical about a bisector of the vertical angle of the intermediate waveguide block.
摘要翻译：包括输入波导或输入波导的阵列波导光栅，输入侧平板波导透镜，阵列波导，输出侧平板波导透镜以及输出波导或输出波导，其中阵列波导的光学长度单调增加或减小相邻波导之间的恒定值; 阵列波导包括输入侧波导块，中间波导块和输出侧波导块; 所述中间波导块包括至少一个扇形波导块，所述扇形波导块是同轴的，垂直角相等，并且在相邻波导之间的半径上恒定地单调增加或减小; 并且输入侧波导块和输出侧波导块关于中间波导块的垂直角的二等分线对称。

4. 发明申请

US20100104237A1 WAVEGUIDE-TYPE OPTICAL INTERFEROMETER 有权
标题翻译：波导型光学干涉仪
公开(公告)号：US20100104237A1
公开(公告)日：2010-04-29
申请号：US12521867
申请日：2007-12-27
申请人： Yusuke Nasu , Manabu Oguma , Yasuaki Hashizume , Yasuyuki Inoue , Hiroshi Takahashi , Kuninori Hattori , Toshikazu Hashimoto , Yohei Sakamaki
发明人： Yusuke Nasu , Manabu Oguma , Yasuaki Hashizume , Yasuyuki Inoue , Hiroshi Takahashi , Kuninori Hattori , Toshikazu Hashimoto , Yohei Sakamaki
IPC分类号： G02B6/27 , G02B6/26
CPC分类号： G02B6/12007 , G02B6/1228 , G02B6/126 , G02B2006/12116 , G02B2006/12159
摘要： In an optical interferometer, polarization dependence attributable to the optical path difference has conventionally been eliminated by inserting a half-wave plate at the center of the interferometer. However, light induced by polarization coupling produced in directional couplers used in the optical interferometer causes interference having different interference conditions from those of the normal light. Polarization rotators that effect any one of 90° rotation and −90° rotation of all states of polarization of incoming light are inserted in the optical interferometer, and thereby the interference conditions of light induced by polarization coupling are made the same as those of the normal light. Each of the polarization rotators is implemented by using two half-wave plates and by varying an angle of combination of these half-wave plates. Alternatively, each of the polarization rotators is implemented through a combination of one half-wave plate and a waveguide having birefringence properties.
摘要翻译：在光干涉仪中，通过在干涉仪的中心插入半波片，传统上消除了归因于光程差的偏振度依赖性。然而，由光干涉仪中使用的定向耦合器产生的偏振耦合引起的光引起与正常光的干扰条件不同的干扰。将影响入射光的所有偏振态的90°旋转和-90°旋转中的任何一个的极化旋转体插入到光学干涉仪中，由此使由偏振耦合引起的光的干涉条件与正常的相同光。每个偏振旋转器通过使用两个半波片并通过改变这些半波片的组合角来实现。或者，每个偏振旋转器通过一个半波片和具有双折射性质的波导的组合来实现。

5. 发明授权

US07536108B2 High precision chromatic dispersion measuring method and automatic dispersion compensating optical link system that uses this method 有权
标题翻译：高精度色散测量方法和使用该方法的自动色散补偿光链路系统
公开(公告)号：US07536108B2
公开(公告)日：2009-05-19
申请号：US10185486
申请日：2002-06-26
申请人： Akira Hirano , Yutaka Miyamoto , Masahito Tomizawa , Shoichiro Kuwahara , Hiroshi Takahashi , Yasuyuki Inoue
发明人： Akira Hirano , Yutaka Miyamoto , Masahito Tomizawa , Shoichiro Kuwahara , Hiroshi Takahashi , Yasuyuki Inoue
IPC分类号： H04B10/12
CPC分类号： H04B10/25133 , H04B10/25137
摘要： The present invention relates to an automatic dispersion compensating optical link system. Carrier suppressed RZ encoded optical signals generated using carrier suppressing means and binary NRZ code or partial response code, or carrier suppressed clock signals generated using carrier suppressing means and clock signals are transmitted on an optical transmission line. Two bands of the carrier suppressed RZ encoded optical signals or carrier suppressed clock signals transmitted on the optical transmission line are each divided into bands and are received. Phase information of the respective basebands is extracted from the binary NRZ code components or partial response code components or clock signals in each band and the relative phase difference thereof is detected. The chromatic dispersion value of the optical transmission line is then calculated from the relative phase difference.
摘要翻译：本发明涉及自动色散补偿光链路系统。载波抑制使用载波抑制装置产生的RZ编码光信号和二进制NRZ码或部分响应码，或者使用载波抑制装置和时钟信号产生的载波抑制时钟信号在光传输线路上传输。载波抑制RZ编码的光信号的两个频带或在光传输线路上传输的载波抑制时钟信号各自被分成频带并被接收。从每个频带中的二进制NRZ码分量或部分响应码分量或时钟信号中提取各个基带的相位信息，并检测其相对相位差。然后从相对相位差计算光传输线的色散值。

6. 发明授权

US08150219B2 Waveguide-type optical interferometer 有权
标题翻译：波导型光干涉仪
公开(公告)号：US08150219B2
公开(公告)日：2012-04-03
申请号：US12521867
申请日：2007-12-27
申请人： Yusuke Nasu , Manabu Oguma , Yasuaki Hashizume , Yasuyuki Inoue , Hiroshi Takahashi , Kuninori Hattori , Toshikazu Hashimoto , Yohei Sakamaki
发明人： Yusuke Nasu , Manabu Oguma , Yasuaki Hashizume , Yasuyuki Inoue , Hiroshi Takahashi , Kuninori Hattori , Toshikazu Hashimoto , Yohei Sakamaki
IPC分类号： G02B6/27 , G02B6/26
CPC分类号： G02B6/12007 , G02B6/1228 , G02B6/126 , G02B2006/12116 , G02B2006/12159
摘要： In an optical interferometer, polarization dependence attributable to the optical path difference has conventionally been eliminated by inserting a half-wave plate at the center of the interferometer. However, light induced by polarization coupling produced in directional couplers used in the optical interferometer causes interference having different interference conditions from those of the normal light. Polarization rotators that effect any one of 90° rotation and −90° rotation of all states of polarization of incoming light are inserted in the optical interferometer, and thereby the interference conditions of light induced by polarization coupling are made the same as those of the normal light. Each of the polarization rotators is implemented by using two half-wave plates and by varying an angle of combination of these half-wave plates. Alternatively, each of the polarization rotators is implemented through a combination of one half-wave plate and a waveguide having birefringence properties.
摘要翻译：在光干涉仪中，通过在干涉仪的中心插入半波片，传统上消除了归因于光程差的偏振度依赖性。然而，由光干涉仪中使用的定向耦合器产生的偏振耦合引起的光引起与正常光的干扰条件不同的干扰。将影响入射光的所有偏振态的90°旋转和-90°旋转中的任何一个的极化旋转体插入到光学干涉仪中，由此使由偏振耦合引起的光的干涉条件与正常的相同光。每个偏振旋转器通过使用两个半波片并通过改变这些半波片的组合角来实现。或者，每个偏振旋转器通过一个半波片和具有双折射性质的波导的组合来实现。

7. 发明申请

US20100119189A1 OPTICAL DELAY LINE INTERFEROMETER 有权
标题翻译：光学延迟线干涉仪
公开(公告)号：US20100119189A1
公开(公告)日：2010-05-13
申请号：US12528933
申请日：2009-01-09
申请人： Yusuke Nasu , Kuninori Hattori , Toshikazu Hashimoto , Yohei Sakamaki , Hiroshi Takahashi , Yasuyuki Inoue
发明人： Yusuke Nasu , Kuninori Hattori , Toshikazu Hashimoto , Yohei Sakamaki , Hiroshi Takahashi , Yasuyuki Inoue
IPC分类号： G02F1/225 , G02B6/00
CPC分类号： H04B10/676 , G02B6/12007 , G02B6/12011 , G02B6/12028 , G02B6/126 , G02B6/29355 , G02B6/29397 , G02B2006/12116 , G02B2006/12147 , G02B2006/1215
摘要： A demodulator is provided for a multilevel differential phase shift keyed signal, capable of eliminating polarization dependence due to birefringence and polarization coupling-induced light resulting from a waveguide structure, and also, polarization dependence due to dynamic birefringence produced at the time of driving a variable phase adjuster. The demodulator is configured of an optical delay line interferometer of a waveguide interference type. The S/N ratio of a demodulated signal in the demodulator formed by the optical delay line interferometer can be also improved. Further, both the polarization dependence and the temperature dependence of the optical delay line interferometer can be reduced. The disposition of a polarization converter and groves filled with a temperature compensation material makes it possible to provide a circuit configuration suitable for eliminating the polarization dependence and the temperature dependence of the optical delay line interferometer.
摘要翻译：提供了一种用于多电平差分相移键控信号的解调器，其能够消除由于波导结构产生的双折射和偏振耦合引起的光的偏振依赖性，以及由驱动变量时产生的动态双折射引起的偏振相关性相位调节器。解调器由波导干涉型光延迟线干涉仪构成。由光延迟线干涉仪形成的解调器中的解调信号的S / N比也可以提高。此外，可以减少光学延迟线干涉仪的偏振相关性和温度依赖性。充满温度补偿材料的偏振转换器和园林的布置使得可以提供适于消除光学延迟线干涉仪的偏振依赖性和温度依赖性的电路配置。

8. 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。

9. 发明授权

US07899279B2 Optical delay line interferometer 有权
标题翻译：光延迟线干涉仪
公开(公告)号：US07899279B2
公开(公告)日：2011-03-01
申请号：US12528933
申请日：2009-01-09
申请人： Yusuke Nasu , Kuninori Hattori , Toshikazu Hashimoto , Yohei Sakamaki , Hiroshi Takahashi , Yasuyuki Inoue
发明人： Yusuke Nasu , Kuninori Hattori , Toshikazu Hashimoto , Yohei Sakamaki , Hiroshi Takahashi , Yasuyuki Inoue
IPC分类号： G02B6/12
CPC分类号： H04B10/676 , G02B6/12007 , G02B6/12011 , G02B6/12028 , G02B6/126 , G02B6/29355 , G02B6/29397 , G02B2006/12116 , G02B2006/12147 , G02B2006/1215
摘要： A demodulator is provided for a multilevel differential phase shift keyed signal, capable of eliminating polarization dependence due to birefringence and polarization coupling-induced light resulting from a waveguide structure, and also, polarization dependence due to dynamic birefringence produced at the time of driving a variable phase adjuster. The demodulator is configured of an optical delay line interferometer of a waveguide interference type. The S/N ratio of a demodulated signal in the demodulator formed by the optical delay line interferometer can be also improved. Further, both the polarization dependence and the temperature dependence of the optical delay line interferometer can be reduced. The disposition of a polarization converter and groves filled with a temperature compensation material makes it possible to provide a circuit configuration suitable for eliminating the polarization dependence and the temperature dependence of the optical delay line interferometer.
摘要翻译：提供了一种用于多电平差分相移键控信号的解调器，其能够消除由于波导结构产生的双折射和偏振耦合引起的光的偏振依赖性，以及由驱动变量时产生的动态双折射引起的偏振相关性相位调节器。解调器由波导干涉型光延迟线干涉仪构成。由光延迟线干涉仪形成的解调器中的解调信号的S / N比也可以提高。此外，可以减少光学延迟线干涉仪的偏振相关性和温度依赖性。充满温度补偿材料的偏振转换器和园林的布置使得可以提供适于消除光学延迟线干涉仪的偏振依赖性和温度依赖性的电路配置。

10. 发明授权

US09496979B2 Space switch device 有权
标题翻译：空间开关装置
公开(公告)号：US09496979B2
公开(公告)日：2016-11-15
申请号：US14236419
申请日：2012-08-02
申请人： Ken-ichi Sato , Hiroshi Hasegawa , Tomonobu Niwa , Hiroshi Takahashi , Toshio Watanabe
发明人： Ken-ichi Sato , Hiroshi Hasegawa , Tomonobu Niwa , Hiroshi Takahashi , Toshio Watanabe
IPC分类号： H04J14/00 , H04J14/02 , H04Q11/00
CPC分类号： H04J14/02 , H04J14/0212 , H04J14/0213 , H04J14/0217 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0035 , H04Q2011/0052
摘要： Disclosed is a spatial switching apparatus having a plurality of input terminals, an input optical signal of a single wavelength being input to each of the plurality of the input terminals, and a plurality of output terminals an output optical signal of a single wavelength being output from each of the plurality of the output terminals. The apparatus includes a signal wavelength converting portion having an electric signal converting element converting the input optical signal into an electric signal and a variable wavelength laser, the signal wavelength converting portion using the variable wavelength laser to convert an electric signal converted by the electric signal converting element into an optical signal of an arbitrary wavelength; and a spatial switching portion having a plurality of first cyclic AWGs performing output from a plurality of output ports corresponding to wavelengths of a plurality of input signals input from the variable wavelength laser.
摘要翻译：公开了一种空间切换装置，具有多个输入端子，单个波长的输入光信号输入到多个输入端子中的每一个，多个输出端子输出单个波长的输出光信号，多个输出端子中的每一个。该装置包括信号波长转换部分，其具有将输入光信号转换为电信号的电信号转换元件和可变波长激光器，信号波长转换部分使用可变波长激光器转换由电信号转换转换的电信号元素变成任意波长的光信号; 以及具有多个第一循环AWG的空间切换部分，其执行从与所述可变波长激光器输入的多个输入信号的波长对应的多个输出端口的输出。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式