公开(公告)号：US07292787B1

公开(公告)日：2007-11-06

申请号：US09495708

申请日：2000-02-01

申请人： Yutaka Kai ,  Hiroshi Onaka ,  Yoshihiro Saito ,  Kazumasa Kubotera

发明人： Yutaka Kai ,  Hiroshi Onaka ,  Yoshihiro Saito ,  Kazumasa Kubotera

IPC分类号： H04B10/00

CPC分类号： G02F1/113 ,  G02F1/125 ,  G02F2001/0144 ,  G02F2201/58 ,  G02F2203/585 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0219 ,  H04Q11/0005 ,  H04Q2011/0035 ,  H04Q2011/0039

摘要： The present invention relates to the selected-wavelength tuning apparatus which is provided with an AOTF, a radio-frequency signal generator, an optical detector, and a controller for detecting lights emitted from the AOTF with the optical detector and for controlling a frequency of the radio-frequency generator so as to detect a light of predetermined wavelength.

摘要翻译： 本发明涉及具有AOTF，射频信号发生器，光学检测器和控制器的选择波长调谐装置，该控制器用于利用光学检测器检测从AOTF发出的光，并且用于控制 射频发生器，以便检测预定波长的光。

公开(公告)号：US07187814B2

公开(公告)日：2007-03-06

申请号：US10960023

申请日：2004-10-08

申请人： Masaji Noguchi ,  Toshihisa Kyouno ,  Hideyuki Miyata ,  Yutaka Kai

发明人： Masaji Noguchi ,  Toshihisa Kyouno ,  Hideyuki Miyata ,  Yutaka Kai

IPC分类号： G02F1/335 ,  G02B6/42 ,  G02B6/26

CPC分类号： G02F1/125 ,  G02F1/116 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021

摘要： A drop-type AOTF is used as a configuration for removing from a through signal an optical signal having the same wavelength as that of an optical signal to be added. To the drop-type AOTF, RF signals are input to always select all of wavelengths, and an RF signal is not input for a wavelength desired to be rejected. As a result, the optical signal having the wavelength for which the RF signal is stopped is not selected by the drop-type AOTF, and cannot pass through. Since there is only one RF signal whose input is stopped, a “drawing effect” does not occur, and control of an optical add/drop device is simplified. Additionally, since high-speed switching can be made, and a wavelength to be added can be varied, restrictions are not imposed on a network configuration.

摘要翻译： 使用液滴型AOTF作为从通过信号去除与要添加的光信号的波长相同的波长的光信号的配置。 对于放大型AOTF，输入RF信号以始终选择所有波长，并且不输入要被拒绝的波长的RF信号。 结果，具有停止RF信号的波长的光信号不被滴型AOTF选择，不能通过。 由于只有一个RF信号的输入停止，所以不会产生“绘图效果”，简化了光学分插装置的控制。 此外，由于可以进行高速切换，并且可以改变要添加的波长，所以不对网络配置施加限制。

公开(公告)号：US06947630B2

公开(公告)日：2005-09-20

申请号：US10284299

申请日：2002-10-31

申请人： Yutaka Kai ,  Hideyuki Miyata ,  Isao Tsuyama

发明人： Yutaka Kai ,  Hideyuki Miyata ,  Isao Tsuyama

IPC分类号： G02B5/18 ,  G02B6/12 ,  G02B6/34 ,  G02F1/01 ,  H04B10/07 ,  H04B10/27 ,  H04B10/29 ,  H04B10/291 ,  H04J14/02 ,  G02B6/28

CPC分类号： G02B6/29395 ,  G02B6/12007 ,  G02F1/0121 ,  G02F2203/585 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0213

摘要： The present invention has an object to provide a control method and a control apparatus for a variable wavelength optical filter, which can reliably and stably control drive conditions of the variable wavelength optical filter, independent of the number of wavelengths to be selectively separated in collective. To this end, the control apparatus for a variable wavelength optical filter according to the present invention comprises: a light reception section that takes out to receive, in collective, monitor light corresponding to each optical signal selectively separated by the variable wavelength optical filter, and creates a monitor signal a level of which is changed corresponding to the power of the received monitor light; an alternating current component extraction section that extracts an alternating current component of the monitor signal generated by the light reception section; and a tracking control section that controls the drive condition of the variable wavelength optical filter based on a level change in the alternating current component extracted by the alternating current component extraction section.

摘要翻译： 本发明的目的是提供一种用于可变波长滤光器的控制方法和控制装置，其可以可靠且稳定地控制可变波长光学滤波器的驱动条件，而与集体中选择性分离的波长数无关。 为此，根据本发明的可变波长光学滤波器的控制装置包括：光接收部分，其集中地监视与由可变波长滤光器选择性分离的每个光信号相对应的光，以及 创建一个监视信号，其电平根据所接收的监视光的功率而改变; 交流分量提取部，其提取由所述受光部生成的所述监视信号的交流分量; 以及跟踪控制部分，其基于由交流分量提取部分提取的交流分量的电平变化来控制可变波长光学滤波器的驱动条件。

公开(公告)号：US06934433B2

公开(公告)日：2005-08-23

申请号：US10106315

申请日：2002-03-27

申请人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

发明人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

IPC分类号： G02B6/30 ,  G02B5/30 ,  G02B6/12 ,  G02B6/122 ,  G02F1/01 ,  G02F1/11 ,  G02F1/125 ,  G02F1/31 ,  H04J14/02 ,  G02B6/26

CPC分类号： H04J14/0221 ,  G02F1/0121 ,  G02F2203/585 ,  H04B10/0795 ,  H04B10/07953 ,  H04B10/0797

摘要： The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a signal light, immediately after the control start. To this end, the control apparatus of the present invention comprises an optical coupler that branches a part of a main signal light input to the optical device, a monitoring optical device that operates in accordance with a control parameter same as for the optical device, and processes the monitor light branched by the optical coupler, a light receiver that receives the monitor light processed by the monitoring optical device, a detecting circuit that detects a relationship between the monitor light received by the light receiver, and the wavelength or optical power of the signal light, and a controlling circuit that adjust the control parameter for the optical device to control the operation setting, based on the relationship detected by the detecting circuit, so that characteristics of the optical device become capable of realizing the relationship to be set corresponding to the signal light.

摘要翻译： 本发明旨在提供一种用于高精度地控制光学装置的操作设置的控制方法和控制装置，以便在控制之后立即根据与信号光对应的期望关系可靠地获得特性 开始。 为此，本发明的控制装置包括将输入到光学装置的主信号光的一部分分支的光耦合器，根据与光学装置相同的控制参数进行操作的监视光学装置，以及 处理由光耦合器分支的监视光，接收由监视光学装置处理的监视光的光接收器，检测由光接收器接收的监视光之间的关系的检测电路以及光接收器的波长或光功率 信号灯，以及控制电路，其根据由检测电路检测到的关系调整光学装置的控制参数以控制操作设置，使得光学装置的特性变得能够实现与 信号灯。

公开(公告)号：US06583900B2

公开(公告)日：2003-06-24

申请号：US10032094

申请日：2001-12-31

申请人： Hiroshi Onaka ,  Hideyuki Miyata ,  Kazue Otsuka ,  Yutaka Kai ,  Tadao Nakazawa ,  Terumi Chikama

发明人： Hiroshi Onaka ,  Hideyuki Miyata ,  Kazue Otsuka ,  Yutaka Kai ,  Tadao Nakazawa ,  Terumi Chikama

IPC分类号： H04B1020

CPC分类号： H04J14/0297 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0219 ,  H04J14/0283 ,  H04J14/0289 ,  H04J14/0291 ,  H04J14/0294

摘要： In an OADM system, an OADM device includes an AOTF. The AOTF can select an optional wavelength by changing the frequency of an RF signal to be applied. An optical signal having a specified wavelength can be dropped from a wavelength-multiplexed optical signal input from an input terminal, or a wavelength-multiplexed optical signal input from an add port can be multiplexed with a through optical signal. However, considering the increase in coherent cross talk, the AOTF should be exclusively used for dropping in an actual device configuration. Otherwise, a drop optical signal is branched by an optical coupler with the wavelength selected by a tributary station. Thus, the wavelength selected by the tributary station can be extracted by the AOTF from the through optical signal.

公开(公告)号：US06351323B1

公开(公告)日：2002-02-26

申请号：US09080399

申请日：1998-05-18

申请人： Hiroshi Onaka ,  Hideyuki Miyata ,  Kazue Otsuka ,  Yutaka Kai ,  Tadao Nakazawa ,  Terumi Chikama

发明人： Hiroshi Onaka ,  Hideyuki Miyata ,  Kazue Otsuka ,  Yutaka Kai ,  Tadao Nakazawa ,  Terumi Chikama

IPC分类号： H04B1004

CPC分类号： H04J14/0297 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0219 ,  H04J14/0283 ,  H04J14/0289 ,  H04J14/0291 ,  H04J14/0294

摘要： In an OADM system, an OADM device includes an AOTF. The AOTF can select an optional wavelength by changing the frequency of an RF signal to be applied. An optical signal having a specified wavelength can be dropped from a wavelength-multiplexed optical signal input from an input terminal, or a wavelength-multiplexed optical signal input from an add port can be multiplexed with a through optical signal. However, considering the increase in coherent cross talk, the AOTF should be exclusively used for dropping in an actual device configuration. Otherwise, a drop optical signal is branched by an optical coupler with the wavelength selected by a tributary station. Thus, the wavelength selected by the tributary station can be extracted by the AOTF from the through optical signal.

摘要翻译： 在OADM系统中，OADM设备包括AOTF。 AOTF可以通过改变要施加的RF信号的频率来选择可选的波长。 具有指定波长的光信号可以从输入端输入的波分复用光信号中丢弃，或从加入口输入的波分复用光信号可以与通过光信号复用。 然而，考虑到相干串扰的增加，AOTF应该专门用于实际的设备配置。 否则，分支光信号由具有由分支站选择的波长的光耦合器分支。 因此，辅助站选择的波长可以由AOTF从通过光信号提取。

公开(公告)号：US08937762B2

公开(公告)日：2015-01-20

申请号：US13450577

申请日：2012-04-19

申请人： Yutaka Kai ,  Setsuo Yoshida ,  Taku Yoshida ,  Keisuke Harada

发明人： Yutaka Kai ,  Setsuo Yoshida ,  Taku Yoshida ,  Keisuke Harada

IPC分类号： H01S3/102

CPC分类号： H04B10/2942 ,  H04J14/0221

摘要： A level control circuit that generates output signal for level control includes: a control information storage that stores control information corresponding to a signal level, a control information circuit that outputs the output signal for level control corresponding to the signal level of a first input signal based on the control information stored in the control information storage; and an information update circuit that updates the control information of the control information storage according to the signal level of a second input signal.

摘要翻译： 产生电平控制的输出信号的电平控制电路包括：存储对应于信号电平的控制信息的控制信息存储器，输出与第一输入信号的信号电平对应的电平控制的输出信号的控制信息电路， 关于存储在控制信息存储器中的控制信息; 以及信息更新电路，其根据第二输入信号的信号电平更新控制信息存储器的控制信息。

公开(公告)号：US08787757B2

公开(公告)日：2014-07-22

申请号：US12946844

申请日：2010-11-15

申请人： Yutaka Kai

发明人： Yutaka Kai

IPC分类号： H04B10/20 ,  H04B10/17 ,  H04B10/00 ,  G02B6/28

CPC分类号： H04B10/0773 ,  H04Q11/0067 ,  H04Q2011/0069 ,  H04Q2011/0079 ,  H04Q2011/0081

摘要： An optical communication network includes a plurality of optical transmission devices, a communication path, an optical repeater, and a supervisory controller that includes a supervisory control information sender which is installed on at least one of one of the optical transmission devices and the optical repeater and controls a drive signal supplied to a semiconductor optical amplifier that amplifies and outputs input signal light onto the communication path on the basis of the supervisory control information, and a supervisory control information receiver that receives the light which has been output from a semiconductor optical amplifier and transmitted through the communication path, converts the received light to an electric signal and identifies the supervisory control information on the basis of an intensity-modulated component of the total power of the electric signal in at least the other of one of the optical transmission devices and the optical repeater.

摘要翻译： 光通信网络包括多个光传输设备，通信路径，光中继器和监控控制器，其包括安装在光传输设备和光中继器中的至少一个上的监控信息发送器，以及 控制提供给半导体光放大器的驱动信号，其基于监控信息放大并输出到通信路径上的输入信号光;以及监控信息接收器，其接收从半导体光放大器输出的光，以及 通过通信路径发送，将接收到的光转换为电信号，并且基于光传输装置中的至少另一个中的电信号的总功率的强度调制分量来识别监控信息，以及 光中继器。

公开(公告)号：US08463135B2

公开(公告)日：2013-06-11

申请号：US12754178

申请日：2010-04-05

申请人： Kyosuke Sone ,  Yutaka Kai ,  George Ishikawa ,  Susumu Kinoshita

发明人： Kyosuke Sone ,  Yutaka Kai ,  George Ishikawa ,  Susumu Kinoshita

IPC分类号： H04B10/00

CPC分类号： H04B10/2971 ,  H04B10/2914 ,  H04Q11/0067 ,  H04Q2011/0079 ,  H04Q2011/0086

摘要： A relay apparatus including: a first interface 11 that branches an optical signal that is input in a first direction from one side of the optical transmission line, and directs the optical signal to a first path and a second path, the first path being a processing path of an optical signal having a first transmission speed, the second path being a processing path of an optical signal having a second transmission speed that is different from the first transmission speed; a processing section 12 that executes processing on an optical signal propagating through each of the paths in accordance with a corresponding transmission speed; and a second interface 13 that binds the first path and the second path of the optical signal on which the processing is executed by the processing section, by means of wavelength multiplexing and directs to the other end of the optical transmission line.

摘要翻译： 一种中继装置，包括：第一接口11，其分支从光传输线的一侧沿第一方向输入的光信号，并将光信号引导到第一路径和第二路径，第一路径是处理 具有第一传输速度的光信号的路径，第二路径是具有与第一传输速度不同的第二传输速度的光信号的处理路径; 处理部分12，根据相应的传输速度对通过每条路径传播的光信号执行处理; 以及第二接口13，其通过波长复用来绑定由处理部分执行处理的光信号的第一路径和第二路径，并引导到光传输线的另一端。

公开(公告)号：US20120257272A1

公开(公告)日：2012-10-11

申请号：US13417481

申请日：2012-03-12

申请人： Setsuo YOSHIDA ,  Susumu Kinoshita ,  George Ishikawa ,  Goji Nakagawa ,  Yutaka Kai ,  Kyosuke Sone ,  Keisuke Harada

发明人： Setsuo YOSHIDA ,  Susumu Kinoshita ,  George Ishikawa ,  Goji Nakagawa ,  Yutaka Kai ,  Kyosuke Sone ,  Keisuke Harada

IPC分类号： H01S5/06

CPC分类号： H04B10/2914 ,  H01S5/0078 ,  H01S5/0428 ,  H01S5/06216 ,  H01S5/06835 ,  H01S5/4087 ,  H01S5/5027 ,  H01S2301/04 ,  H01S2301/06

摘要： An optical amplification apparatus includes a front-stage semiconductor optical amplifier which amplifies an input light and a rear-stage semiconductor optical amplifier which amplifies an amplified light outputted from the front-stage semiconductor optical amplifier. The front-stage semiconductor optical amplifier exercises auto level control of an output light by exercising variable control of driving current which flows according to applied voltage higher than light emitting threshold voltage of an internal optical amplification element. The rear-stage semiconductor optical amplifier performs gate switching of a transmitted light by exercising switching control of driving current. By doing so, distortion of a waveform is controlled and optical communication quality can be improved.

摘要翻译： 光放大装置包括放大输入光的前级半导体光放大器和放大从前级半导体光放大器输出的放大光的后级半导体光放大器。 前级半导体光放大器通过对根据施加的电压高于内部光放大元件的发光阈值电压的驱动电流的可变控制来进行输出光的自动电平控制。 后级半导体光放大器通过进行驱动电流的切换控制来进行透射光的栅极切换。 通过这样做，可以控制波形失真，提高光通信质量。