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1. 发明申请

US20120076506A1 COHERENT OPTICAL RECEIVING APPARATUS AND COHERENT OPTICAL RECEIVING METHOD 审中-公开
标题翻译：相关光接收装置和相关光接收方法
公开(公告)号：US20120076506A1
公开(公告)日：2012-03-29
申请号：US13223817
申请日：2011-09-01
申请人： Yuta Goebuchi , Kouichi Suzuki
发明人： Yuta Goebuchi , Kouichi Suzuki
IPC分类号： H04B10/06
CPC分类号： H04B10/615
摘要： A coherent optical receiving apparatus according to the present invention includes a coherent optical receiving unit to receive a whole of an optical multiplexed signal into which an optical signal is multiplexed, a tunable filter, a local oscillation unit, and a control unit. The coherent optical receiving unit, which includes a 90-degree hybrid circuit and an optoelectric conversion device, selectively detects an optical signal, which interferes with a local oscillation light outputted by the local oscillation unit, out of the optical multiplexed signal. The tunable filter, which is arranged in front of the optoelectric conversion device on an optical path on which the optical multiplexed signal flows, has a bandwidth within which a plurality of optical signals are included. The control unit makes a central wavelength of the tunable filter and a wavelength of the local oscillation light be changed together.
摘要翻译：根据本发明的相干光接收装置包括：相干光接收单元，用于接收整个光信号被多路复用的光复用信号，可调谐滤波器，本地振荡单元和控制单元。包括90度混合电路和光电转换装置的相干光接收单元从光复用信号中选择性地检测与本地振荡单元输出的本地振荡光的光信号。在光复用信号流动的光路上配置在光电转换装置的前方的可调谐滤波器具有包含多个光信号的带宽。控制单元使可调滤波器的中心波长和局部振荡光的波长一起改变。

2. 发明申请

US20140010530A1 OPTICAL TRANSMITTER, WAVELENGTH MULTIPLEXING TRANSMISSION DEVICE AND OPTICAL TRANSMISSION METHOD 审中-公开
标题翻译：光发射机，波长多路复用传输设备和光传输方法
公开(公告)号：US20140010530A1
公开(公告)日：2014-01-09
申请号：US14004617
申请日：2012-03-21
申请人： Yuta Goebuchi
发明人： Yuta Goebuchi
IPC分类号： H04B10/54
CPC分类号： H04B10/54 , G02F2001/212 , G02F2201/58 , G02F2203/20 , G02F2203/50 , H04B10/5057 , H04J14/02 , H04J14/06
摘要： An optical transmitter includes: a modulator; an output light monitoring unit; and a control unit. The modulator includes a dividing unit dividing light inputted to the modulator into first and second branch lights; first and second modulation units performing phase modulation for the first and second branch lights, respectively; a rotator which rotates the polarization plane of one of the first and second modulated lights; and a polarization combining unit combining the first and second modulated lights. The output light monitoring unit monitors light intensity of the output of the polarization combining unit. The control unit controls at least one of the first and second modulation units, on the basis of a monitoring result by the output light monitoring unit. The control includes a light intensity control making the light intensity of the first and/or second modulated light smaller than a maximum value of a modulation curve light intensity.
摘要翻译：一种光发射机包括：调制器; 输出光监视单元; 和控制单元。所述调制器包括：将输入到所述调制器的光分成第一和第二分支光的分割单元; 第一和第二调制单元分别对第一和第二分支灯执行相位调制; 旋转器，其使所述第一和第二调制光中的一个的偏振面旋转; 以及组合第一和第二调制光的偏振组合单元。输出光监视单元监视偏振组合单元的输出的光强度。控制单元基于输出光监视单元的监视结果来控制第一和第二调制单元中的至少一个。该控制包括使第一和/或第二调制光的光强度小于调制曲线光强度的最大值的光强度控制。

3. 发明授权

US07880129B2 Light receiving circuit, light receiving method, and storage medium 失效
标题翻译：光接收电路，光接收方式和存储介质
公开(公告)号：US07880129B2
公开(公告)日：2011-02-01
申请号：US12490571
申请日：2009-06-24
申请人： Yuta Goebuchi
发明人： Yuta Goebuchi
IPC分类号： G01J1/44 , H01L31/00
CPC分类号： H04B10/695
摘要： The PD converts the light into a current signal and supplies the converted a current signal to a TIA and a light intensity measuring unit. The TIA converts the current signal into a voltage signal. The CDR circuit identifies whether the voltage signal is 1 data or 0 data for reproduction. The counter counts the 1 data and 0 data, calculates their ratio. The control unit refers to light intensity data from the light intensity measuring unit and a ROM, acquires an optimum ratio, and determines whether the ratio supplied from the counter is the optimum ratio. When the ratio is not the optimum one, the control unit controls the threshold voltage setting unit to set the threshold voltage so that the ratio is the optimum one.
摘要翻译： PD将光转换成电流信号，并将转换的电流信号提供给TIA和光强度测量单元。 TIA将当前信号转换为电压信号。 CDR电路识别电压信号是1个数据还是0个数据进行再现。计数器对1个数据和0个数据进行计数，计算其比率。控制单元是指来自光强测量单元和ROM的光强度数据，获取最佳比例，并且确定从计数器提供的比率是否是最佳比率。当比率不是最佳比例时，控制单元控制阈值电压设定单元设定阈值电压，使得该比值是最佳值。

4. 发明申请

US20090322381A1 LIGHT RECEIVING CIRCUIT, LIGHT RECEIVING METHOD, AND STORAGE MEDIUM 失效
标题翻译：光接收电路，光接收方式和存储介质
公开(公告)号：US20090322381A1
公开(公告)日：2009-12-31
申请号：US12490571
申请日：2009-06-24
申请人： Yuta Goebuchi
发明人： Yuta Goebuchi
IPC分类号： H03K5/153
CPC分类号： H04B10/695
摘要： The PD converts the light into a current signal and supplies the converted a current signal to a TIA and a light intensity measuring unit. The TIA converts the current signal into a voltage signal. The CDR circuit identifies whether the voltage signal is 1 data or 0 data for reproduction. The counter counts the 1 data and 0 data, calculates their ratio. The control unit refers to light intensity data from the light intensity measuring unit and a ROM, acquires an optimum ratio, and determines whether the ratio supplied from the counter is the optimum ratio. When the ratio is not the optimum one, the control unit controls the threshold voltage setting unit to set the threshold voltage so that the ratio is the optimum one.
摘要翻译： PD将光转换成电流信号，并将转换的电流信号提供给TIA和光强度测量单元。 TIA将当前信号转换为电压信号。 CDR电路识别电压信号是1个数据还是0个数据进行再现。计数器对1个数据和0个数据进行计数，计算其比率。控制单元是指来自光强测量单元和ROM的光强度数据，获取最佳比例，并且确定从计数器提供的比率是否是最佳比率。当比率不是最佳比例时，控制单元控制阈值电压设定单元设定阈值电压，使得该比值是最佳值。

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