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：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：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。

公开(公告)号：US07546043B2

公开(公告)日：2009-06-09

申请号：US10785483

申请日：2004-02-25

申请人： Yutaka Kai ,  Hideyuki Miyata

发明人： Yutaka Kai ,  Hideyuki Miyata

IPC分类号： H04B10/06

CPC分类号： H04J14/0204 ,  H04J14/0205 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/022 ,  H04J14/0221 ,  H04J14/0283 ,  H04J14/0295 ,  H04J14/0297 ,  H04J14/0298

摘要： Signal light with a specific wavelength is transmitted and extracted from signal light multiplexed by a WDM method, and a light detection unit detects the signal light detected by an optical tunable filter, whose wavelength transmission characteristic varies depending on a control signal. An operation circuit generates information for designating a control signal needed to enable the optical tunable filter to extract signal light with a designated wavelength, based on the detected results of two segments of signal light located at each edge of a wavelength band obtained by shifting the wavelength transmission characteristic of the optical tunable filter from outside the wavelength band including all segments of the entire WDM signal. A driving circuit generates a control signal according to the designation information.

摘要翻译： 具有特定波长的信号光由通过WDM方式复用的信号光发送和提取，光检测单元检测由波长传输特性根据控制信号而变化的光可调谐滤波器检测到的信号光。 运算电路根据检测到的位于通过移位波长获得的波长带的每个边缘的信号光的两个段的检测结果，产生用于指定使光可调谐滤波器以指定波长提取信号光所需的控制信号的信息 来自包括整个WDM信号的所有段的波长带外的光可调滤波器的传输特性。 驱动电路根据指定信息生成控制信号。

公开(公告)号：US07366426B2

公开(公告)日：2008-04-29

申请号：US10787137

申请日：2004-02-27

申请人： Yutaka Kai ,  Hideyuki Miyata

发明人： Yutaka Kai ,  Hideyuki Miyata

IPC分类号： H04B10/04 ,  H04B10/12

CPC分类号： H04J14/0205 ,  H04B10/572 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/022

摘要： A wavelength stabilizing filter has a wavelength transmission characteristic curve that has its peak in a wavelength located between a first continuous set band and a second continuous set band longer in wavelength than the first set band, and that linearly drops from the peak toward the shorter wavelength side than the first set band and also toward the longer wavelength side longer than the second set band. A control unit generates a control signal needed to enable an optical tunable filter to extract signal light with a predetermined wavelength from an inputted WDM signal, based on light transmitted through the wavelength stabilizing filter.

摘要翻译： 波长稳定滤波器具有波长传输特性曲线，波长传播特性曲线在位于第一连续设定波段和波长比第一设定波段长的第二连续设定波段之间的波长处具有峰值，并且从峰值朝向较短波长线性地下降 并且还朝向比第二设定频带长的较长波长侧。 控制单元基于通过波长稳定滤波器透射的光产生使光学可调谐滤波器从输入的WDM信号中提取具有预定波长的信号光所需的控制信号。