公开(公告)号：US06895141B2

公开(公告)日：2005-05-17

申请号：US10265794

申请日：2002-10-08

申请人： Hideyuki Miyata ,  Yutaka Kai ,  Isao Tsuyama

发明人： Hideyuki Miyata ,  Yutaka Kai ,  Isao Tsuyama

IPC分类号： G02F1/125 ,  G02F1/335 ,  H04B10/07 ,  H04B10/27 ,  H04B10/29 ,  H04B10/291 ,  H04B10/293 ,  H04B10/564 ,  H04B10/572 ,  H04J14/00 ,  H04J14/02 ,  G02B6/28

CPC分类号： H04J14/0221 ,  H04B10/25073 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0213

摘要： In the control method for the optical filter according to the present invention, WDM signal light obtained by wavelength division multiplexing a plurality of optical signals having different wavelengths is supplied to an optical filter to obtain output WDM signal light including a part of the plurality of optical signals. The output WDM signal light is converted into an electrical signal per wavelength channel of the output WDM signal light. Then, the optical filter is controlled according to the electrical signal so that the characteristic of the optical filter becomes stable.

摘要翻译： 在根据本发明的滤光器的控制方法中，通过将具有不同波长的多个光信号进行波分复用获得的WDM信号光提供给滤光器，以获得包括多个光学部分的一部分的输出WDM信号光 信号。 输出WDM信号光被转换成输出WDM信号光的每个波长信道的电信号。 然后，根据电信号控制滤光器，使得滤光器的特性变得稳定。

公开(公告)号：US07120321B2

公开(公告)日：2006-10-10

申请号：US10265767

申请日：2002-10-08

申请人： Hideyuki Miyata ,  Yutaka Kai ,  Isao Tsuyama

发明人： Hideyuki Miyata ,  Yutaka Kai ,  Isao Tsuyama

IPC分类号： G02F1/335

CPC分类号： G02F1/116 ,  G02F2201/16 ,  G02F2203/585

摘要： The present invention relates to a control method and device for an optical filter, and a primary object of the present invention is to achieve accurate tracking control of the optical filter. Disclosed herein is a control method for an optical filter including first and second optical filter units cascaded, each having an input and first and second outputs. The first output of the first optical filter unit is connected to the input of the second optical filter unit. First light output from the second output of the first optical filter unit is converted into a first electrical signal having a level corresponding to the power of the first light, and second light output from the second output of the second optical filter unit is converted into a second electrical signal having a level corresponding to the power of the second light. A control signal is generated according to the first and second electrical signals. Then, the first and second optical filter units are controlled according to the control signal. According to this method, accurate tracking control of the optical filter can be achieved.

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：US06996142B2

公开(公告)日：2006-02-07

申请号：US09804250

申请日：2001-03-13

申请人： Yutaka Kai ,  Hideyuki Miyata

发明人： Yutaka Kai ,  Hideyuki Miyata

IPC分类号： H01S3/04 ,  H01S3/14

CPC分类号： H04B10/572 ,  H01S5/026 ,  H01S5/06837 ,  H01S5/0687 ,  H01S5/12 ,  H01S5/4025 ,  H01S5/4031 ,  H01S5/4087 ,  H04B10/503

摘要： Disclosed herein is a light source device and a wavelength control device therefor. The light source device includes a plurality of laser diodes, a temperature sensor provided in the vicinity of the plurality of laser diodes, a control loop for controlling the temperatures of the plurality of laser diodes according to an output from the temperature sensor to thereby control the oscillation wavelengths of the plurality of laser diodes, and a unit for compensating temperature control conditions for the laser diodes other than a reference laser diode selected from the plurality of laser diodes, according to a change in temperature control condition for the reference laser diode. By the compensation of the temperature control conditions, the oscillation wavelength of each laser diode can be easily stabilized to each wavelength channel of WDM.

公开(公告)号：US20050271314A1

公开(公告)日：2005-12-08

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： H04B10/27 ,  G02F1/11 ,  G02F1/125 ,  G02F1/335 ,  H04B10/07 ,  H04B10/29 ,  H04B10/291 ,  H04J14/00 ,  H04J14/02

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：US20050226550A1

公开(公告)日：2005-10-13

申请号：US11144607

申请日：2005-06-06

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

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

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.

公开(公告)号：US07181094B2

公开(公告)日：2007-02-20

申请号：US11213955

申请日：2005-08-30

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Hiroyasu Ito ,  Hideyuki Miyata ,  Yutaka Kai

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Hiroyasu Ito ,  Hideyuki Miyata ,  Yutaka Kai

IPC分类号： G02F1/335 ,  H04J14/02 ,  H04B10/00

CPC分类号： G02F1/113

摘要： A radio-frequency-signal generator generates an RF signal. An optical monitor monitors a first intensity of a reference signal and a second intensity of a drop signal. A reference-frequency determining unit determines, based on the first intensity, a first frequency of an RF signal that causes the AOTF to output the reference signal. A temperature detecting unit detects a temperature of the AOTF. A frequency calculating unit calculates a second frequency of an RF signal that causes the AOTF to output a drop signal of a desired wavelength. A control unit controls the RF-signal generator to generate the RF signal of the second frequency calculated.

摘要翻译： 射频信号发生器产生RF信号。 光学监视器监视参考信号的第一强度和下降信号的第二强度。 参考频率确定单元基于第一强度确定使AOTF输出参考信号的RF信号的第一频率。 温度检测单元检测AOTF的温度。 频率计算单元计算使AOTF输出所需波长的液滴信号的RF信号的第二频率。 控制单元控制RF信号发生器以产生所计算的第二频率的RF信号。

公开(公告)号：US20050169633A1

公开(公告)日：2005-08-04

申请号：US11082958

申请日：2005-03-18

申请人： Goji Nakagawa ,  Hideyuki Miyata ,  Yutaka Kai ,  Hiroshi Onaka ,  Setsuo Yoshida ,  Kyosuke Sone ,  Tomohiro Ueno

发明人： Goji Nakagawa ,  Hideyuki Miyata ,  Yutaka Kai ,  Hiroshi Onaka ,  Setsuo Yoshida ,  Kyosuke Sone ,  Tomohiro Ueno

IPC分类号： H04B10/27 ,  G02F1/125 ,  H01L31/12 ,  H01S5/0687 ,  H04B10/07 ,  H04B10/275 ,  H04B10/29 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04B10/572 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/022 ,  H04J14/0227

摘要： An optical transmission device improved in quality and reliability of OADM function and permitting configuration of highly-flexible, economical OADM networks. A wavelength tunable filter variably selects a wavelength according to a control frequency. A filter controller applies the control frequency to the filter while scanning wavelength over an entire signal bandwidth, to detect, from a reference wavelength monitor signal supplied thereto, a reference control frequency which permits the filter to select a reference wavelength and according to which wavelength is matched. On receiving a wavelength selection request, the controller obtains a target control frequency from the reference control frequency and the position of a target wavelength relative to the reference wavelength, and applies the obtained frequency to the filter. A reference wavelength filter transmits the reference wavelength therethrough. A light-receiving element monitors the transmitted reference wavelength to generate the monitor signal.

摘要翻译： 一种光传输设备改进了OADM功能的质量和可靠性，并允许配置高度灵活，经济的OADM网络。 波长可调滤波器根据控制频率可变地选择波长。 滤波器控制器在整个信号带宽上扫描波长时将滤波器的控制频率施加到滤波器，从提供给其的参考波长监测信号中检测出允许滤波器选择参考波长的参考控制频率，根据哪个波长是 匹配。 在接收到波长选择请求时，控制器从参考控制频率和目标波长相对于参考波长的位置获得目标控制频率，并将获得的频率应用于滤波器。 参考波长滤波器透过参考波长。 光接收元件监测发射的参考波长以产生监测信号。

公开(公告)号：US06785306B2

公开(公告)日：2004-08-31

申请号：US09739218

申请日：2000-12-19

申请人： Yutaka Kai ,  Hideyuki Miyata

发明人： Yutaka Kai ,  Hideyuki Miyata

IPC分类号： H01S310

CPC分类号： H01S5/0687 ,  H01S5/0612 ,  H01S5/4087 ,  H01S5/50

摘要： A wavelength-tunable stabilized laser is provided with a light source comprising a plurality of lasers capable of oscillating at a plurality of wavelengths, a light detecting part for detecting the light intensity of laser light output from the light source via a periodic filter, and a controlling part for generating oscillation of one of the lasers of the light source and controlling the oscillation wavelength of the laser so that the output value of the light detecting part becomes equal to a predetermined one of a plurality of target values. The wavelength-tunable stabilized laser is able to generate oscillation of laser light at a desired wavelength, of the plurality of wavelengths, and to stabilize the wavelength.

摘要翻译： 波长可调稳定激光器设置有包括能够以多个波长振荡的多个激光器的光源，用于检测经由周期滤波器从光源输出的激光的光强度的光检测部，以及 控制部分，用于产生光源中的一个激光器的振荡并控制激光器的振荡波长，使得光检测部分的输出值变得等于多个目标值中的预定值。 波长可调稳定的激光器能够产生在多个波长的期望波长处的激光的振荡，并且使波长稳定。

公开(公告)号：US06782017B1

公开(公告)日：2004-08-24

申请号：US09560151

申请日：2000-04-28

申请人： Yutaka Kai ,  Hideyuki Miyata ,  Hiroshi Onaka

发明人： Yutaka Kai ,  Hideyuki Miyata ,  Hiroshi Onaka

IPC分类号： H01S313

CPC分类号： H04B10/572 ,  H01S5/0078 ,  H01S5/0687 ,  H04B10/506

摘要： An object of the invention is to provide a wavelength locker which has a wider locking range than that of the wavelength locker in the prior art and which can cope with a plurality of wavelengths. The aforementioned objects are achieved by a wavelength locker, which comprises a periodic filter, a detecting part for detecting the intensity of a laser beam through the periodic filter, and a controlling part for controlling the wavelength of the laser beam to a desired wavelength in accordance with the output of the detecting part. In this wavelength locker, the FSR of the periodical filter is controlled according to space between the wavelengths, and refers to the number of wavelength to be locked, so that the characteristics corresponding to output wavelengths that vary in every period twice the space of wavelengths and are complementary to each other, can be obtained, and the locking range will become wider.

摘要翻译： 本发明的目的是提供一种具有比现有技术中的波长锁定器更宽的锁定范围并且可以应付多个波长的波长锁定器。 上述目的通过一种波长锁定器实现，该波长锁定器包括周期滤波器，用于检测通过周期滤波器的激光束的强度的检测部分，以及用于将激光束的波长控制为所需波长的控制部分 与检测部分的输出。 在该波长锁定器中，周期滤波器的FSR根据波长之间的空间来控制，并且是指要锁定的波长的数量，使得对应于输出波长的特性在每个周期中变化是波长空间的两倍， 互补，可以获得，锁定范围将变宽。