公开(公告)号：US06441951B1

公开(公告)日：2002-08-27

申请号：US09858509

申请日：2001-05-17

申请人： Tomoto Tanaka ,  Miki Onaka ,  Etsuko Hayashi ,  Yasushi Sugaya

发明人： Tomoto Tanaka ,  Miki Onaka ,  Etsuko Hayashi ,  Yasushi Sugaya

IPC分类号： H01S300

CPC分类号： H01S3/2375 ,  H01S3/06758 ,  H01S3/10015 ,  H01S3/1301 ,  H01S3/1608 ,  H01S3/302 ,  H01S2301/02 ,  H01S2301/04 ,  H04B10/0731 ,  H04B10/0795 ,  H04B10/0797 ,  H04B10/2916

摘要： An object of the invention is to provide an optical amplification apparatus using Raman amplification, which can reliably judge an input interruption of signal light and can shut down the supply of excitation light in accordance with a judged input interruption of the signal light. To this end, the optical amplification apparatus of the present invention comprises an input interruption detection means for detecting a noise light component due to the Raman amplification, and judging an input interruption of the signal light based on the detection result, and further comprises a shut down control means for shutting down supply of the excitation light when an input interruption of the signal light is judged by the input interruption detection means. The input interruption detection means computes the noise light power due to the Raman amplification in accordance with monitored excitation light power, and corrects a threshold value as a judgment reference for an input interruption using the calculation result, and judges an input interruption of the signal light when a monitored value of the input light power to a second optical amplifying means is less than the post-correction threshold value.

摘要翻译： 本发明的目的是提供一种使用拉曼放大的光放大装置，其可以可靠地判断信号光的输入中断，并且可以根据判断的信号光的输入中断来关闭激发光的供给。 为此，本发明的光放大装置包括输入中断检测装置，用于检测由于拉曼放大引起的噪声光分量，并根据检测结果判断信号光的输入中断，还包括关闭 降低控制装置，用于当由输入中断检测装置判断信号光的输入中断时，关闭激励光的供应。 输入中断检测装置根据监视的激发光功率计算由于拉曼放大引起的噪声光功率，并且使用计算结果校正作为输入中断的判断基准的阈值，并且判断信号光的输入中断 当第二光放大装置的输入光功率的监视值小于校正后阈值时。

公开(公告)号：US06847478B1

公开(公告)日：2005-01-25

申请号：US10734169

申请日：2003-12-15

申请人： Tomoto Tanaka ,  Miki Onaka ,  Etsuko Hayashi ,  Yasushi Sugaya

发明人： Tomoto Tanaka ,  Miki Onaka ,  Etsuko Hayashi ,  Yasushi Sugaya

IPC分类号： H01S3/00 ,  H01S3/067 ,  H01S3/10 ,  H01S3/102 ,  H01S3/16 ,  H01S3/23 ,  H01S3/30 ,  H04B10/07 ,  H04B10/071 ,  H04B10/077 ,  H04B10/29 ,  H04B10/291

CPC分类号： H01S3/2375 ,  H01S3/06758 ,  H01S3/10015 ,  H01S3/1301 ,  H01S3/1608 ,  H01S3/302 ,  H01S2301/02 ,  H01S2301/04 ,  H04B10/0731 ,  H04B10/0795 ,  H04B10/0797 ,  H04B10/2916

摘要： An object of the invention is to provide an optical amplification apparatus using Raman amplification, which can reliably judge an input interruption of signal light and can shut down the supply of excitation light in accordance with a judged input interruption of the signal light. To this end, the optical amplification apparatus of the present invention comprises an input interruption detection means for detecting a noise light component due to the Raman amplification, and judging an input interruption of the signal light based on the detection result, and further comprises a shut down control means for shutting down supply of the excitation light when an input interruption of the signal light is judged by the input interruption detection means. The input interruption detection means computes the noise light power due to the Raman amplification in accordance with monitored excitation light power, and corrects a threshold value as a judgment reference for an input interruption using the calculation result, and judges an input interruption of the signal light when a monitored value of the input light power to a second optical amplifying means is less than the post-correction threshold value.

摘要翻译： 本发明的目的是提供一种使用拉曼放大的光放大装置，其可以可靠地判断信号光的输入中断，并且可以根据判断的信号光的输入中断来关闭激发光的供给。 为此，本发明的光放大装置包括输入中断检测装置，用于检测由于拉曼放大引起的噪声光分量，并根据检测结果判断信号光的输入中断，还包括关闭 降低控制装置，用于当由输入中断检测装置判断信号光的输入中断时，关闭激励光的供应。 输入中断检测装置根据监视的激发光功率计算由于拉曼放大引起的噪声光功率，并且使用计算结果校正作为输入中断的判断基准的阈值，并且判断信号光的输入中断 当第二光放大装置的输入光功率的监视值小于校正后阈值时。

公开(公告)号：US07394589B2

公开(公告)日：2008-07-01

申请号：US10299808

申请日：2002-11-20

申请人： Miki Onaka ,  Tomoto Tanaka ,  Etsuko Hayashi ,  Yasushi Sugaya ,  Susumu Kinoshita

发明人： Miki Onaka ,  Tomoto Tanaka ,  Etsuko Hayashi ,  Yasushi Sugaya ,  Susumu Kinoshita

IPC分类号： H01S3/00

CPC分类号： H04B10/2942 ,  H01S3/06758 ,  H01S3/0941 ,  H01S3/302 ,  H01S5/146 ,  H01S2301/06 ,  H04B10/2916

摘要： A Raman amplifier providing a wideband gain for use in a wavelength division multiplexing (WDM) optical communication system. In one embodiment, a first optical amplifier Raman amplifies a wavelength division multiplexed signal light in both a first wavelength band and a second wavelength band in accordance with a plurality of excitation (pumping) lights provided to the first optical amplifier, the first and second wavelength bands being different from each other. A divider divides the amplified signal light into first and second lights in the first and second wavelength bands, respectively. A second optical amplifier amplifies the first light and has a gain band in the first wavelength band. The third optical amplifier amplifies the second light and has a gain in the second wavelength band. In various embodiments, a gain equalizer and/or an optical isolator is used in combination with the first optical amplifier providing the Raman amplification. A controller is also provided to control the excitation lights provided to the first optical amplifier to achieve specific effects.

摘要翻译： 提供宽带增益的拉曼放大器，用于波分复用（WDM）光通信系统。 在一个实施例中，第一光放大器拉曼根据提供给第一光放大器的多个激励（泵浦）光放大第一波长带和第二波段中的波分复用信号光，第一和第二波长 乐队彼此不同。 分频器将放大的信号光分成第一和第二波长带中的第一和第二光。 第二光放大器放大第一光并具有第一波长带中的增益带。 第三光放大器放大第二光并具有第二波长带的增益。 在各种实施例中，增益均衡器和/或光隔离器与提供拉曼放大的第一光放大器组合使用。 还提供控制器来控制提供给第一光放大器的激发光以实现特定的效果。

公开(公告)号：US06624926B1

公开(公告)日：2003-09-23

申请号：US09693838

申请日：2000-10-23

申请人： Etsuko Hayashi ,  Tomoto Tanaka ,  Yasushi Sugaya ,  Miki Onaka

发明人： Etsuko Hayashi ,  Tomoto Tanaka ,  Yasushi Sugaya ,  Miki Onaka

IPC分类号： H01S300

CPC分类号： H04B10/2916 ,  H01S3/06754 ,  H01S3/1301 ,  H01S3/302 ,  H04B10/0777 ,  H04B10/07955 ,  H04B10/0797 ,  H04B2210/077

摘要： A Raman amplifier for amplifying a wavelength division multiplexed (WDM) light including signal lights wavelength division multiplexed together. The amplifier includes an optical amplifying medium and a controller. The optical amplifying medium uses Raman amplification to amplify the WDM light in accordance with multiplexed pump lights of different wavelengths traveling through the optical amplifying medium. The WDM light is amplified in a wavelength band divided into a plurality of individual wavelength bands. The controller controls power of each pump light based on a wavelength characteristic of gain generated in the optical amplifying medium in the individual wavelength bands.

摘要翻译： 一种拉曼放大器，用于将波分复用（WDM）光包括波分多路复用的信号光放大。 放大器包括光放大介质和控制器。 光放大介质使用拉曼放大来根据穿过光放大介质的不同波长的多路复用泵浦光放大WDM光。 WDM光被分成多个单独波长带的波长带进行放大。 控制器基于在各个波长带中在光放大介质中产生的增益的波长特性来控制每个泵浦光的功率。

公开(公告)号：US07042636B2

公开(公告)日：2006-05-09

申请号：US10925929

申请日：2004-08-26

申请人： Etsuko Hayashi ,  Tomoto Tanaka ,  Yasushi Sugaya ,  Miki Onaka

发明人： Etsuko Hayashi ,  Tomoto Tanaka ,  Yasushi Sugaya ,  Miki Onaka

IPC分类号： H01S3/00

CPC分类号： H04B10/2916 ,  H01S3/06754 ,  H01S3/1301 ,  H01S3/302 ,  H04B10/0777 ,  H04B10/07955 ,  H04B10/0797 ,  H04B2210/077

摘要： A Raman amplifier for amplifying a wavelength division multiplexed (WDM) light including signal lights wavelength division multiplexed together. The amplifier includes an optical amplifying medium and a controller. The optical amplifying medium uses Raman amplification to amplify the WDM light in accordance with multiplexed pump lights of different wavelengths traveling through the optical amplifying medium. The WDM light is amplified in a wavelength band divided into a plurality of individual wavelength bands. The controller controls power of each pump light based on a wavelength characteristic of gain generated in the optical amplifying medium in the individual wavelength bands.

公开(公告)号：US20050024714A1

公开(公告)日：2005-02-03

申请号：US10925929

申请日：2004-08-26

申请人： Etsuko Hayashi ,  Tomoto Tanaka ,  Yasushi Sugaya ,  Miki Onaka

发明人： Etsuko Hayashi ,  Tomoto Tanaka ,  Yasushi Sugaya ,  Miki Onaka

IPC分类号： G02F1/35 ,  H01S3/131 ,  H01S3/30 ,  H04B10/07 ,  H04B10/29 ,  H04B10/294 ,  H01S3/00

CPC分类号： H04B10/2916 ,  H01S3/06754 ,  H01S3/1301 ,  H01S3/302 ,  H04B10/0777 ,  H04B10/07955 ,  H04B10/0797 ,  H04B2210/077

摘要： A Raman amplifier for amplifying a wavelength division multiplexed (WDM) light including signal lights wavelength division multiplexed together. The amplifier includes an optical amplifying medium and a controller. The optical amplifying medium uses Raman amplification to amplify the WDM light in accordance with multiplexed pump lights of different wavelengths traveling through the optical amplifying medium. The WDM light is amplified in a wavelength band divided into a plurality of individual wavelength bands. The controller controls power of each pump light based on a wavelength characteristic of gain generated in the optical amplifying medium in the individual wavelength bands.

公开(公告)号：US07362499B2

公开(公告)日：2008-04-22

申请号：US11371093

申请日：2006-03-09

申请人： Etsuko Hayashi ,  Tomoto Tanaka ,  Yasushi Sugaya ,  Miki Onaka

发明人： Etsuko Hayashi ,  Tomoto Tanaka ,  Yasushi Sugaya ,  Miki Onaka

IPC分类号： H01S3/00

CPC分类号： H04B10/2916 ,  H01S3/06754 ,  H01S3/1301 ,  H01S3/302 ,  H04B10/0777 ,  H04B10/07955 ,  H04B10/0797 ,  H04B2210/077

摘要： A Raman amplifier for amplifying a wavelength division multiplexed (WDM) light including signal lights wavelength division multiplexed together. The amplifier includes an optical amplifying medium and a controller. The optical amplifying medium uses Raman amplification to amplify the WDM light in accordance with multiplexed pump lights of different wavelengths traveling through the optical amplifying medium. The WDM light is amplified in a wavelength band divided into a plurality of individual wavelength bands. The controller controls power of each pump light based on a wavelength characteristic of gain generated in the optical amplifying medium in the individual wavelength bands.

摘要翻译： 一种拉曼放大器，用于将波分复用（WDM）光包括波分多路复用的信号光放大。 放大器包括光放大介质和控制器。 光放大介质使用拉曼放大来根据穿过光放大介质的不同波长的多路复用泵浦光放大WDM光。 WDM光被分成多个单独波长带的波长带进行放大。 控制器基于在各个波长带中在光放大介质中产生的增益的波长特性来控制每个泵浦光的功率。

公开(公告)号：US20060152796A1

公开(公告)日：2006-07-13

申请号：US11371093

申请日：2006-03-09

申请人： Etsuko Hayashi ,  Tomoto Tanaka ,  Yasushi Sugaya ,  Miki Onaka

发明人： Etsuko Hayashi ,  Tomoto Tanaka ,  Yasushi Sugaya ,  Miki Onaka

IPC分类号： H01S3/00

CPC分类号： H04B10/2916 ,  H01S3/06754 ,  H01S3/1301 ,  H01S3/302 ,  H04B10/0777 ,  H04B10/07955 ,  H04B10/0797 ,  H04B2210/077

摘要： A Raman amplifier for amplifying a wavelength division multiplexed (WDM) light including signal lights wavelength division multiplexed together. The amplifier includes an optical amplifying medium and a controller. The optical amplifying medium uses Raman amplification to amplify the WDM light in accordance with multiplexed pump lights of different wavelengths traveling through the optical amplifying medium. The WDM light is amplified in a wavelength band divided into a plurality of individual wavelength bands. The controller controls power of each pump light based on a wavelength characteristic of gain generated in the optical amplifying medium in the individual wavelength bands.

摘要翻译： 一种拉曼放大器，用于将波分复用（WDM）光包括波分多路复用的信号光放大。 放大器包括光放大介质和控制器。 光放大介质使用拉曼放大来根据穿过光放大介质的不同波长的多路复用泵浦光放大WDM光。 WDM光被分成多个单独波长带的波长带进行放大。 控制器基于在各个波长带中在光放大介质中产生的增益的波长特性来控制每个泵浦光的功率。

公开(公告)号：US06891661B2

公开(公告)日：2005-05-10

申请号：US10624568

申请日：2003-07-23

申请人： Etsuko Hayashi ,  Tomoto Tanaka ,  Yasushi Sugaya ,  Miki Onaka

发明人： Etsuko Hayashi ,  Tomoto Tanaka ,  Yasushi Sugaya ,  Miki Onaka

IPC分类号： G02F1/35 ,  H01S3/131 ,  H01S3/30 ,  H04B10/07 ,  H04B10/29 ,  H04B10/294 ,  H01S3/00

CPC分类号： H04B10/2916 ,  H01S3/06754 ,  H01S3/1301 ,  H01S3/302 ,  H04B10/0777 ,  H04B10/07955 ,  H04B10/0797 ,  H04B2210/077

摘要： A Raman amplifier for amplifying a wavelength division multiplexed (WDM) light including signal lights wavelength division multiplexed together. The amplifier includes an optical amplifying medium and a controller. The optical amplifying medium uses Raman amplification to amplify the WDM light in accordance with multiplexed pump lights of different wavelengths traveling through the optical amplifying medium. The WDM light is amplified in a wavelength band divided into a plurality of individual wavelength bands. The controller controls power of each pump light based on a wavelength characteristic of gain generated in the optical amplifying medium in the individual wavelength bands.

摘要翻译： 一种拉曼放大器，用于将波分复用（WDM）光包括波分多路复用的信号光放大。 放大器包括光放大介质和控制器。 光放大介质使用拉曼放大来根据穿过光放大介质的不同波长的多路复用泵浦光放大WDM光。 WDM光被分成多个单独波长带的波长带进行放大。 控制器基于在各个波长带中在光放大介质中产生的增益的波长特性来控制每个泵浦光的功率。

公开(公告)号：US06683712B2

公开(公告)日：2004-01-27

申请号：US10192528

申请日：2002-07-11

申请人： Tomoto Tanaka ,  Miki Onaka ,  Etsuko Hayashi ,  Yasushi Sugaya

发明人： Tomoto Tanaka ,  Miki Onaka ,  Etsuko Hayashi ,  Yasushi Sugaya

IPC分类号： H01S300

CPC分类号： H01S3/2375 ,  H01S3/06758 ,  H01S3/10015 ,  H01S3/1301 ,  H01S3/1608 ,  H01S3/302 ,  H01S2301/02 ,  H01S2301/04 ,  H04B10/0731 ,  H04B10/0795 ,  H04B10/0797 ,  H04B10/2916

摘要： An object of the invention is to provide an optical amplification apparatus using Raman amplification, which can reliably judge an input interruption of signal light and can shut down the supply of excitation light in accordance with a judged input interruption of the signal light. To this end, the optical amplification apparatus of the present invention comprises an input interruption detection means for detecting a noise light component due to the Raman amplification, and judging an input interruption of the signal light based on the detection result, and further comprises a shut down control means for shutting down supply of the excitation light when an input interruption of the signal light is judged by the input interruption detection means. The input interruption detection means computes the noise light power due to the Raman amplification in accordance with monitored excitation light power, and corrects a threshold value as a judgment reference for an input interruption using the calculation result, and judges an input interruption of the signal light when a monitored value of the input light power to a second optical amplifying means is less than the post-correction threshold value.

摘要翻译： 本发明的目的是提供一种使用拉曼放大的光放大装置，其可以可靠地判断信号光的输入中断，并且可以根据判断的信号光的输入中断来关闭激发光的供给。 为此，本发明的光放大装置包括输入中断检测装置，用于检测由于拉曼放大引起的噪声光分量，并根据检测结果判断信号光的输入中断，还包括关闭 降低控制装置，用于当由输入中断检测装置判断信号光的输入中断时，关闭激励光的供应。 输入中断检测装置根据监视的激发光功率计算由于拉曼放大引起的噪声光功率，并且使用计算结果校正作为输入中断的判断基准的阈值，并且判断信号光的输入中断 当第二光放大装置的输入光功率的监视值小于校正后阈值时。