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1. 发明授权

US5680246A Optical amplifier and optical transmission apparatus 失效
标题翻译：光放大器和光传输装置
公开(公告)号：US5680246A
公开(公告)日：1997-10-21
申请号：US412290
申请日：1995-03-28
申请人： Tsukasa Takahashi , Hiroyuki Itou , Yuji Tamura , Michikazu Shima , Kazuo Yamane , Yumiko Kawasaki , Keisuke Imai , Yoshinori Ohkuma , Kazuhiro Suzuki , Yasunori Nagakubo , Takashi Tsuda , Yuji Miyaki
发明人： Tsukasa Takahashi , Hiroyuki Itou , Yuji Tamura , Michikazu Shima , Kazuo Yamane , Yumiko Kawasaki , Keisuke Imai , Yoshinori Ohkuma , Kazuhiro Suzuki , Yasunori Nagakubo , Takashi Tsuda , Yuji Miyaki
IPC分类号： H01S3/07 , H01S3/06 , H01S3/067 , H01S3/10 , H01S3/13 , H01S3/131 , H04B10/07 , H04B10/2507 , H04B10/29 , H04B10/293 , H04B10/564 , H04B10/572 , H01S3/00
CPC分类号： H04B10/564 , H01S3/1301 , H04B10/077 , H04B10/07955 , H04B10/2912 , H04B10/2931 , H01S3/06754
摘要： The optical amplifier includes a doped fiber doped with a rare earth element, a pumping light source, means for introducing signal light and pumping light into the doped fiber, detection means for detecting whether or not amplified signal light is included in light outputted from the doped fiber, and means for decreasing the intensity of the pumping light when it is detected that amplified signal light is not included. It can be possible to eliminate an influence of an optical surge arising from a characteristic of the doped fiber.
摘要翻译：光放大器包括掺杂有稀土元素的掺杂光纤，泵浦光源，用于将信号光和泵浦光引入掺杂光纤的装置，用于检测放大信号光是否包含在从掺杂光光纤，以及当检测到不包括放大信号光时降低泵浦光强度的装置。可以消除由掺杂光纤的特性引起的光学浪涌的影响。

2. 发明申请

US20050249444A1 Optical transmitter and its control method 失效
标题翻译：光发射机及其控制方法
公开(公告)号：US20050249444A1
公开(公告)日：2005-11-10
申请号：US10628553
申请日：2003-07-29
申请人： Keisuke Imai , Toru Yamazaki , Kakuji Inoue , Setsuo Misaizu , Yasunori Nagakubo
发明人： Keisuke Imai , Toru Yamazaki , Kakuji Inoue , Setsuo Misaizu , Yasunori Nagakubo
IPC分类号： G02F1/03 , G02F1/01 , G02F1/035
CPC分类号： G02F1/0123 , H04B10/505 , H04B10/50572 , H04B10/50575 , H04B10/58
摘要： An optical transmitter comprises an amplitude modulation unit performing amplitude modulation of only a one-side amplitude of a main signal with a low-frequency signal having a predetermined frequency. An optical modulator receives an input signal generated after the one-side amplitude modulation, and modulates an incoming light in response to the received signal in accordance with a predetermined modulation-characteristic curve to output an optical output signal. An operating point control unit applies a predetermined bias voltage to the optical modulator to control a level of the input signal substantially applied to the modulation-characteristic curve so that the one-side amplitude of the main signal is applied to a minimum portion of the modulation-characteristic curve of the optical modulator.
摘要翻译：光发射机包括幅度调制单元，其具有仅具有具有预定频率的低频信号的主信号的单侧振幅的幅度调制。光调制器接收在单侧幅度调制之后产生的输入信号，并且根据预定的调制特性曲线响应于接收信号调制入射光以输出光输出信号。操作点控制单元向光调制器施加预定的偏置电压以控制基本上施加到调制特性曲线的输入信号的电平，使得主信号的单侧振幅被施加到调制的最小部分 - 光学调制器的特征曲线。

3. 发明授权

US5973812A Optical transmitter and optical communication system 失效
标题翻译：光发射机和光通信系统
公开(公告)号：US5973812A
公开(公告)日：1999-10-26
申请号：US874666
申请日：1997-06-13
申请人： Keisuke Imai , Yasunori Nagakubo
发明人： Keisuke Imai , Yasunori Nagakubo
IPC分类号： H04B10/516 , H04B10/2537 , H04B10/61 , H04B10/00
CPC分类号： H04B10/2537
摘要： An optical transmitter and an optical communication system, each for providing a good transmission characteristic of a main signal and allowing suppression of SBS (stimulated Brillouin scattering). The optical transmitter comprises a light source for outputting a carrier beam, an optical modulator for modulating the carrier beam based on a main signal and sending out an optical signal into an optical fiber transmission line, an oscillator for outputting a low frequency signal, a first circuit for frequency or phase modulating the carrier beam based on the low frequency signal, and a second circuit for superposing an opposite phase signal having a phase opposite to that of the low frequency signal with the main signal and supplying a resulting signal to the optical modulator.
摘要翻译：一种光发射机和光通信系统，每个用于提供主信号的良好传输特性并允许抑制SBS（受激布里渊散射）。光发射机包括用于输出载波束的光源，用于基于主信号调制载波的光调制器，并将光信号发送到光纤传输线，用于输出低频信号的振荡器，第一基于所述低频信号对所述载波进行频率或相位调制的电路，以及用于将与所述主信号具有与所述低频信号的相位相反的相位的相反相位信号叠加并将所得信号提供给所述光调制器的第二电路。

4. 发明授权

US5736875A Discrimination circuit capable of automatically optimizing discrimination level and discrimination phase 失效
标题翻译：鉴别电路能够自动优化辨别等级和辨别阶段
公开(公告)号：US5736875A
公开(公告)日：1998-04-07
申请号：US618941
申请日：1996-03-20
申请人： Hisaya Sakamoto , Takashi Tsuda , Yasunori Nagakubo
发明人： Hisaya Sakamoto , Takashi Tsuda , Yasunori Nagakubo
IPC分类号： G11B7/00 , G11B7/005 , H03D13/00 , H03K5/08 , H03K5/125 , H04L25/03 , H03K5/153 , H01L31/00 , H03K5/22
CPC分类号： H03K5/125 , H03K5/086
摘要： In controlling a discrimination level V.sub.1, V.sub.1 is controlled so that discrimination results based on discrimination levels V.sub.1 +.DELTA.V and V.sub.1 -.DELTA.V each become equal to the discrimination result based on the discrimination level V.sub.1. If the discrimination result based on V.sub.1 +.DELTA.V does not agree with the discrimination result based on V.sub.1, V.sub.1 is lowered, and if the discrimination result based on V.sub.1 -.DELTA.V does not agree with the discrimination result based on V.sub.1, V.sub.1 is raised. In controlling a discrimination phase .PHI..sub.1, .PHI..sub.1 is controlled so that discrimination results based on discrimination phases .PHI..sub.1 +.DELTA..PHI. and .PHI..sub.1 -.DELTA..PHI. each become equal to the discrimination result based on the discrimination phase .PHI..sub.1. If the discrimination result based on .PHI..sub.1 +.DELTA..PHI. does not agree with the discrimination result based on .PHI..sub.1, .PHI..sub.1 is delayed, and if the discrimination result based on .PHI..sub.1 -.DELTA..PHI. does not agree with the discrimination result based on .PHI..sub.1, .PHI..sub.1 is advanced.
摘要翻译：在控制识别电平V1时，V1被控制，使得基于识别电平V1 + DELTA V和V1- DELTA V的辨别结果分别基于鉴别电平V1等于鉴别结果。如果基于V1 + DELTA V的识别结果与基于V1的识别结果不一致，则V1降低，并且如果基于V1-DELTA V的识别结果与基于V1的识别结果不一致，则V1增加。在控制鉴别阶段PHI 1时，控制PHI 1，使得基于鉴别阶段PHI 1+ DELTA PHI和PHI 1- DELTA PHI的辨别结果分别基于鉴别阶段PHI 1等于鉴别结果。如果鉴别结果基于PHI 1+ DELTA PHI与基于PHI 1的鉴别结果不一致，PHI 1被延迟，并且如果基于PHI 1- DELTA PHI的判别结果与基于PHI 1的鉴别结果不一致，则PHI 1 是先进的

5. 发明授权

US5515682A Peltier control circuit and a peltier device structure 失效
公开(公告)号：US5515682A
公开(公告)日：1996-05-14
申请号：US342032
申请日：1994-11-17
申请人： Yasunori Nagakubo , Takashi Tsuda , Tetsuo Ishizaka , Shunichi Sato , Saeko Yokoi , Manabu Komiyama , Toshio Ohya , Noriaki Mizuguchi
发明人： Yasunori Nagakubo , Takashi Tsuda , Tetsuo Ishizaka , Shunichi Sato , Saeko Yokoi , Manabu Komiyama , Toshio Ohya , Noriaki Mizuguchi
IPC分类号： H01S3/04 , F25B21/04 , G05D23/19 , G05D23/20 , H01L35/28 , H01S5/024 , H01S5/068 , F25B21/02
CPC分类号： H01S5/02415 , F25B21/04 , G05D23/1919 , H01L35/28 , F25B2321/0212
摘要： A Peltier control circuit detects a temperature of a device combined with a Peltier device and controls a current flowing through the Peltier device so as to keep the temperature of the device at a predetermined value. The circuit has a temperature sensing section for detecting the temperature of a device, a comparing section for comparing a temperature detection value with a predetermined temperature reference value, a limiting section for providing a comparison output with the limitation of a current flowing through the Peltier device and providing the limitation with a predetermined temperature characteristics, and a driving section for providing the Peltier device with an input or output driving current in accordance with the comparison output via the limiting section.

6. 发明授权

US5966938A Peltier control circuit and a peltier device structure 失效
标题翻译：珀耳帖控制电路和珀耳帖器件结构
公开(公告)号：US5966938A
公开(公告)日：1999-10-19
申请号：US607318
申请日：1996-02-26
申请人： Yasunori Nagakubo , Takashi Tsuda , Tetsuo Ishizaka , Shunichi Sato , Saeko Yokoi , Manabu Komiyama , Toshio Ohya , Noriaki Mizuguchi
发明人： Yasunori Nagakubo , Takashi Tsuda , Tetsuo Ishizaka , Shunichi Sato , Saeko Yokoi , Manabu Komiyama , Toshio Ohya , Noriaki Mizuguchi
IPC分类号： H01S3/04 , F25B21/04 , G05D23/19 , G05D23/20 , H01L35/28 , H01S5/024 , H01S5/068 , F25B21/02
CPC分类号： H01S5/02415 , F25B21/04 , G05D23/1919 , H01L35/28 , F25B2321/0212
摘要： A Peltier control circuit detects a temperature of a device combined with a Peltier device and controls a current flowing through the Peltier device so as to keep the temperature of the device at a predetermined value. The circuit has a temperature sensing section for detecting the temperature of a device, a comparing section for comparing a temperature detection value with a predetermined temperature reference value, a limiting section for providing a comparison output with the limitation of a current flowing through the Peltier device and providing the limitation with a predetermined temperature characteristics, and a driving section for providing the Peltier device with an input or output driving current in accordance with the comparison output via the limiting section.
摘要翻译：佩尔贴控制电路检测与珀耳帖装置组合的装置的温度，并控制流过珀尔帖装置的电流，以便将装置的温度保持在预定值。该电路具有用于检测装置的温度的温度检测部分，用于将温度检测值与预定温度参考值进行比较的比较部分，用于提供比较输出和限制流过珀尔帖装置的电流的限制部分并提供具有预定温度特性的限制;以及驱动部分，用于经由限制部分根据比较输出为珀耳帖装置提供输入或输出驱动电流。

7. 发明授权

US5900621A Light transmitter having an automatic bias control circuit 失效
标题翻译：光发射机具有自动偏置控制电路
公开(公告)号：US5900621A
公开(公告)日：1999-05-04
申请号：US903104
申请日：1997-07-30
申请人： Yasunori Nagakubo , Sadao Ibukuro , Akihiko Hayashi , Takashi Tsuda
发明人： Yasunori Nagakubo , Sadao Ibukuro , Akihiko Hayashi , Takashi Tsuda
IPC分类号： G02F1/01 , G02F1/03 , H01J40/14
CPC分类号： G02F1/0123 , H04B10/505 , H04B10/50575 , H04B10/50595 , H04B10/564
摘要： In a light transmitter comprises an automatic bias control circuit which automatically controls a bias for an external modulator, a part of a light output/input signal of the external modulator is branched to detect an electrical monitor signal and a gain control signal is generated in inverse proportion to the level of the monitor signal to control the gain of the automatic bias control circuit.
摘要翻译：在光发射机包括自动偏置控制电路，其自动控制外部调制器的偏置，外部调制器的光输出/输入信号的一部分被分支以检测电监视信号，并且产生增益控制信号与监视信号的电平成比例，以控制自动偏置控制电路的增益。

8. 发明授权

US07648289B2 Module having a handle to be operated to attach the module to a cage 失效
标题翻译：模块具有用于将模块附接到笼子的手柄
公开(公告)号：US07648289B2
公开(公告)日：2010-01-19
申请号：US12078060
申请日：2008-03-26
申请人： Makoto Miyoshi , Kazuya Sasaki , Akihiko Hayashi , Shinichi Aoki , Yasunori Nagakubo
发明人： Makoto Miyoshi , Kazuya Sasaki , Akihiko Hayashi , Shinichi Aoki , Yasunori Nagakubo
IPC分类号： G02B6/36
CPC分类号： G02B6/4292 , G02B6/4201 , G02B6/4261
摘要： A module is configured to be attached to a cage. A handle is rotatable about a rotation shaft between an accommodated position where the module is mounted to the cage and a withdrawal position where the module can be withdrawn from the cage. A resiliently-bendable tongue piece performs engagement and disengagement between the module and the cage. A notch portion is provided to the tongue piece. A press portion is provided to the handle on a circumference having a center located on the rotation shaft of the handle, the press portion configured to contact with the notch portion when the handle is at the accommodated position. A cam rotatable with the handle so as to resiliently bend the tongue piece.
摘要翻译：模块被配置为附接到笼。手柄可绕旋转轴转动，该旋转轴在模块安装到保持架的容纳位置和模块可从保持架中取出的取出位置之间旋转。弹性弯曲的舌片执行模块和保持架之间的接合和分离。切口部分设置在舌片上。在具有位于手柄的旋转轴上的中心的圆周上的手柄上设置有按压部，当手柄处于收纳位置时，按压部构造成与切口部接触。凸轮可与手柄一起旋转，以弹性地弯曲舌片。

9. 发明授权

US5900959A Optical transmitter, optical communication system and optical communication method 失效
标题翻译：光发射机，光通信系统和光通信方式
公开(公告)号：US5900959A
公开(公告)日：1999-05-04
申请号：US763110
申请日：1996-12-10
申请人： Mitsuharu Noda , Setsuo Misaizu , Motoyoshi Sekiya , Yasunori Nagakubo
发明人： Mitsuharu Noda , Setsuo Misaizu , Motoyoshi Sekiya , Yasunori Nagakubo
IPC分类号： H04B10/00 , H04B10/071 , H04B10/2537 , H04B10/54 , H04B10/588 , H04B10/04
CPC分类号： H04B10/2537
摘要： An optical transmitter comprises a first unit for generating an optical signal having a bandwidth given by a main signal, a second unit modulating the optical signal according to a control signal to extend the bandwidth of the optical signal, a third unit extracting backward light including SBS(stimulated Brillouin scattering) light generated in an optical fiber transmission line, and a fourth unit performing feedback control so that the power of the SBS light becomes substantially constant. Through the structure of the optical transmitter good transmission characteristics of a main signal are obtained and the suppression of the SBS is allowed.
摘要翻译：光发射机包括：第一单元，用于产生具有由主信号给出的带宽的光信号;第二单元，根据控制信号调制光信号以扩展光信号的带宽;第三单元，提取包括SBS的向后光（受激布里渊散射）光，以及执行反馈控制的第四单元，使得SBS光的功率变得基本恒定。通过光发射机的结构获得了主信号的良好传输特性，并允许SBS的抑制。

10. 发明授权

US08280662B2 Optical system, optical module and threshold setting method 失效
标题翻译：光学系统，光模块和阈值设置方法
公开(公告)号：US08280662B2
公开(公告)日：2012-10-02
申请号：US12260150
申请日：2008-10-29
申请人： Yasunori Nagakubo
发明人： Yasunori Nagakubo
IPC分类号： G01R13/00 , G06F11/30
CPC分类号： G01R13/0281
摘要： An optical system includes an optical module having an optical reception unit that receives input light and output an electric signal related to received input light, and a processing unit having an identification unit that performs identification processing based on a threshold value on the electric signal input via a reception signal path from the optical reception unit. The optical module includes a threshold calculation unit that calculates the threshold value based on the electric signal from the optical reception unit and a signal path characteristic of the reception signal path from the optical reception unit to the identification unit, and the identification unit of the processing unit performs the identification processing based on the threshold value calculated by the threshold calculation unit. Thereby, the threshold value is optimized when the identifier is provided in the unit as a connection destination of the optical module.
摘要翻译：光学系统包括具有接收输入光并输出与接收到的输入光相关的电信号的光接收单元的光学模块，以及具有识别单元的处理单元，该识别单元基于通过电信号输入的电信号上的阈值进行识别处理来自光接收单元的接收信号路径。光模块包括阈值计算单元，该阈值计算单元基于来自光接收单元的电信号和从光接收单元到识别单元的接收信号路径的信号路径特性以及处理的识别单元计算阈值单元基于由阈值计算单元计算的阈值执行识别处理。因此，当在该单元中提供标识符作为光学模块的连接目的地时，阈值被优化。

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