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1. 发明申请

US20060203329A1 Control apparatus and method for optical amplifier, optical amplifier, optical transmission apparatus, individual band gain equalizer, wavelength multiplexing transmission apparatus, optical amplifier and wavelength multiplexing transmission system using the same equalizer 有权
标题翻译：光放大器，光放大器，光传输装置，单波段增益均衡器，波长复用传输装置，光放大器和使用相同均衡器的波长复用传输系统的控制装置和方法
公开(公告)号：US20060203329A1
公开(公告)日：2006-09-14
申请号：US11362727
申请日：2006-02-28
申请人： Masato Nishihara , Miki Onaka , Etsuko Hayashi , Shinichirou Muro
发明人： Masato Nishihara , Miki Onaka , Etsuko Hayashi , Shinichirou Muro
IPC分类号： H01S3/00
CPC分类号： H04B10/2942 , H01S3/06754 , H01S3/10015 , H01S3/10069 , H01S3/1301 , H01S3/302
摘要： A control apparatus comprises a light monitoring unit for dividing a signal wavelength band into at least a band in which output light power of an optical amplifier tends to decrease at an decrease in the number of signal wavelengths and a band including a gain deviation band, and for monitoring inputted light power for the individual divided bands, a calculation unit for obtaining the number of signal wavelengths in the individual divided bands based on a monitor result, and a target gain correction unit for correcting a target gain based on a result of the calculation. This suppresses a transient variation of signal light level due to SHB or SRS at a high speed with a simple configuration without deteriorating noise characteristic, thus enabling optical amplifiers to be further disposed in a multi-stage fashion, which can lengthen the transmission distance of a transmission system including an optical add/drop unit.
摘要翻译：一种控制装置，包括：光监视单元，用于将信号波长带分割成至少一个频带，其中信号波长数目的减少和包括增益偏差带的波段的光放大器的输出光功率趋于减小;以及用于监视各个分割频带的输入光功率;计算单元，用于基于监视结果获得各个分割频带中的信号波长数;以及目标增益校正单元，用于基于计算结果来校正目标增益。这样可以通过简单的结构，以高速度抑制由于SHB或SRS引起的信号光电平的瞬态变化，而不会使噪声特性恶化，从而能够以多级方式进一步布置光放大器，这可以延长传输距离传输系统包括光学分插单元。

2. 发明授权

US07715093B2 Individual band gain equalizer for optical amplifiers 有权
标题翻译：用于光放大器的单独带宽增益均衡器
公开(公告)号：US07715093B2
公开(公告)日：2010-05-11
申请号：US12016176
申请日：2008-01-17
申请人： Masato Nishihara , Miki Onaka , Etsuko Hayashi
发明人： Masato Nishihara , Miki Onaka , Etsuko Hayashi
IPC分类号： H01S3/00
CPC分类号： H04B10/2942 , H01S3/06754 , H01S3/10015 , H01S3/10069 , H01S3/1301 , H01S3/302
摘要： A control apparatus comprises a light monitoring unit for dividing a signal wavelength band into at least a band in which output light power of an optical amplifier tends to decrease at an decrease in the number of signal wavelengths and a band including a gain deviation band, and for monitoring inputted light power for the individual divided bands, a calculation unit for obtaining the number of signal wavelengths in the individual divided bands based on a monitor result, and a target gain correction unit for correcting a target gain based on a result of the calculation. This suppresses a transient variation of signal light level due to SHB or SRS at a high speed with a simple configuration without deteriorating noise characteristic, thus enabling optical amplifiers to be further disposed in a multi-stage fashion, which can lengthen the transmission distance of a transmission system including an optical add/drop unit.
摘要翻译：一种控制装置，包括：光监视单元，用于将信号波长带分割成至少一个频带，其中信号波长数目的减少和包括增益偏差带的波段的光放大器的输出光功率趋于减小;以及用于监视各个分割频带的输入光功率;计算单元，用于基于监视结果获得各个分割频带中的信号波长数;以及目标增益校正单元，用于基于计算结果来校正目标增益。这样可以通过简单的结构，以高速度抑制由于SHB或SRS引起的信号光电平的瞬态变化，而不会使噪声特性恶化，从而能够以多级方式进一步布置光放大器，这可以延长传输距离传输系统包括光学分插单元。

3. 发明申请

US20080239470A1 INDIVIDUAL BAND GAIN EQUALIZER FOR OPTICAL AMPLIFIERS 有权
标题翻译：用于光放大器的个体带增益平衡器
公开(公告)号：US20080239470A1
公开(公告)日：2008-10-02
申请号：US12016176
申请日：2008-01-17
申请人： Masato Nishihara , Miki Onaka , Etsuko Hayashi , Shinichirou Muro
发明人： Masato Nishihara , Miki Onaka , Etsuko Hayashi , Shinichirou Muro
IPC分类号： H01S3/00
CPC分类号： H04B10/2942 , H01S3/06754 , H01S3/10015 , H01S3/10069 , H01S3/1301 , H01S3/302
摘要： A control apparatus comprises a light monitoring unit for dividing a signal wavelength band into at least a band in which output light power of an optical amplifier tends to decrease at an decrease in the number of signal wavelengths and a band including a gain deviation band, and for monitoring inputted light power for the individual divided bands, a calculation unit for obtaining the number of signal wavelengths in the individual divided bands based on a monitor result, and a target gain correction unit for correcting a target gain based on a result of the calculation. This suppresses a transient variation of signal light level due to SHB or SRS at a high speed with a simple configuration without deteriorating noise characteristic, thus enabling optical amplifiers to be further disposed in a multi-stage fashion, which can lengthen the transmission distance of a transmission system including an optical add/drop unit.
摘要翻译：一种控制装置，包括：光监视单元，用于将信号波长带分割成至少一个频带，其中信号波长数目的减少和包括增益偏差带的波段的光放大器的输出光功率趋于减小;以及用于监视各个分割频带的输入光功率;计算单元，用于基于监视结果获得各个分割频带中的信号波长数;以及目标增益校正单元，用于基于计算结果来校正目标增益。这样可以通过简单的结构，以高速度抑制由于SHB或SRS引起的信号光电平的瞬态变化，而不会使噪声特性恶化，从而能够以多级方式进一步布置光放大器，这可以延长传输距离传输系统包括光学分插单元。

4. 发明授权

US07359112B2 Individual band gain equalizer for optical amplifiers 有权
标题翻译：用于光放大器的单独带宽增益均衡器
公开(公告)号：US07359112B2
公开(公告)日：2008-04-15
申请号：US11362727
申请日：2006-02-28
申请人： Masato Nishihara , Miki Onaka , Etsuko Hayashi , Shinichirou Muro
发明人： Masato Nishihara , Miki Onaka , Etsuko Hayashi , Shinichirou Muro
IPC分类号： H01S3/00
CPC分类号： H04B10/2942 , H01S3/06754 , H01S3/10015 , H01S3/10069 , H01S3/1301 , H01S3/302
摘要： A control apparatus comprises a light monitoring unit for dividing a signal wavelength band into at least a band in which output light power of an optical amplifier tends to decrease at an decrease in the number of signal wavelengths and a band including a gain deviation band, and for monitoring inputted light power for the individual divided bands, a calculation unit for obtaining the number of signal wavelengths in the individual divided bands based on a monitor result, and a target gain correction unit for correcting a target gain based on a result of the calculation. This suppresses a transient variation of signal light level due to SHB or SRS at a high speed with a simple configuration without deteriorating noise characteristic, thus enabling optical amplifiers to be further disposed in a multi-stage fashion, which can lengthen the transmission distance of a transmission system including an optical add/drop unit.
摘要翻译：一种控制装置，包括：光监视单元，用于将信号波长带分割成至少一个频带，其中信号波长数目的减少和包括增益偏差带的波段的光放大器的输出光功率趋于减小;以及用于监视各个分割频带的输入光功率;计算单元，用于基于监视结果获得各个分割频带中的信号波长数;以及目标增益校正单元，用于基于计算结果来校正目标增益。这样可以通过简单的结构，以高速度抑制由于SHB或SRS引起的信号光电平的瞬态变化，而不会使噪声特性恶化，从而能够以多级方式进一步布置光放大器，这可以延长传输距离传输系统包括光学分插单元。

5. 发明申请

US20050088727A1 Optical apparatus with loss compensation capability and optical amplifier for loss compensation 有权
标题翻译：具有损耗补偿能力的光学设备和用于损耗补偿的光学放大器
公开(公告)号：US20050088727A1
公开(公告)日：2005-04-28
申请号：US10950699
申请日：2004-09-28
申请人： Hisao Nakashima , Miki Onaka , Masato Nishihara , Etsuko Hayashi , Hideyuki Miyata
发明人： Hisao Nakashima , Miki Onaka , Masato Nishihara , Etsuko Hayashi , Hideyuki Miyata
IPC分类号： H01S3/067 , H01S3/13 , H01S3/131 , H01S5/0683 , H01S5/50 , H01S3/10
CPC分类号： H04B10/291 , H01S3/1305 , H01S3/1312 , H01S5/0683 , H01S5/50
摘要： An optical apparatus having a loss compensation capability includes between an input connector 1A and an output connector 1B an input side optical parts 2 including an input monitor, an amplification medium 3, a loss medium 4, and an output side optical parts 5 including an output monitor in this order, and is provided with a control circuit 6 for controlling a gain based on a monitor result of input/output light. The amount of reflection attenuation on all points, on which the light can be reflected on the optical path from the output end of the amplification medium 3 to the output connector 1B, can be smaller than the amount of reflection attenuation on the end face of the output connector 1B.
摘要翻译：具有损耗补偿能力的光学装置在输入连接器1A和输出连接器1B之间包括输入侧光学部件2，输入侧光学部件2包括输入监视器，放大介质3，损耗介质4和输出侧光学部件5，包括输出监视器，并且设置有用于基于输入/输出光的监视结果来控制增益的控制电路6。光可以从放大介质3的输出端到输出连接器1B的光路上反射的所有点上的反射衰减量可以小于在放大介质3的端面上的反射衰减量输出连接器1B。

6. 发明授权

US07061669B2 Optical apparatus with loss compensation capability and optical amplifier for loss compensation 有权
标题翻译：具有损耗补偿能力的光学设备和用于损耗补偿的光学放大器
公开(公告)号：US07061669B2
公开(公告)日：2006-06-13
申请号：US10950699
申请日：2004-09-28
申请人： Hisao Nakashima , Miki Onaka , Masato Nishihara , Etsuko Hayashi , Hideyuki Miyata
发明人： Hisao Nakashima , Miki Onaka , Masato Nishihara , Etsuko Hayashi , Hideyuki Miyata
IPC分类号： H01S3/00
CPC分类号： H04B10/291 , H01S3/1305 , H01S3/1312 , H01S5/0683 , H01S5/50
摘要： An optical apparatus having a loss compensation capability includes between an input connector 1A and an output connector 1B an input side optical parts 2 including an input monitor, an amplification medium 3, a loss medium 4, and an output side optical parts 5 including an output monitor in this order, and is provided with a control circuit 6 for controlling a gain based on a monitor result of input/output light. The amount of reflection attenuation on all points, on which the light can be reflected on the optical path from the output end of the amplification medium 3 to the output connector 1B, can be smaller than the amount of reflection attenuation on the end face of the output connector 1B.
摘要翻译：具有损耗补偿能力的光学装置在输入连接器1A和输出连接器1B之间包括输入侧光学部件2，输入侧光学部件2包括输入监视器，放大介质3，损耗介质4和输出侧光学部件5，包括输出监视器，并且设置有用于基于输入/输出光的监视结果来控制增益的控制电路6。光可以在从放大介质3的输出端到输出连接器1B的光路上反射的所有点上的反射衰减量可以小于在放大介质3的端面上的反射衰减量输出连接器1B。

7. 发明授权

US07843631B2 Gain control apparatus, optical transmission apparatus, gain control method for optical amplifier, and wavelength multiplex optical transmission system 有权
标题翻译：增益控制装置，光传输装置，光放大器的增益控制方法和波长复用光传输系统
公开(公告)号：US07843631B2
公开(公告)日：2010-11-30
申请号：US11859842
申请日：2007-09-24
申请人： Miki Onaka , Hideaki Sugiya , Yasushi Sugaya , Etsuko Hayashi
发明人： Miki Onaka , Hideaki Sugiya , Yasushi Sugaya , Etsuko Hayashi
IPC分类号： H04B10/17 , H04B10/12
CPC分类号： H01S3/1301 , H01S3/06754 , H01S3/10015 , H01S3/1305 , H04B10/296
摘要： The present invention relates to an apparatus for controlling a gain of an optical amplifier, and the apparatus comprises a target gain calculating unit for calculating, as a target gain for an optical amplifier, a value obtained by increasing or decreasing a gain (output) of signal light as the number of wavelengths of wavelength-multiplexed signal light decreases, and a control signal outputting unit for outputting a control signal to the optical amplifier so as to amplify the wavelength-multiplexed signal light with the target gain calculated by the target gain calculating unit. This promptly suppresses a fluctuation of signal light level, particularly, a fluctuation of output light power of an optical amplifier stemming from a variation of the number of wavelengths of wavelength-multiplexed signal light.
摘要翻译：本发明涉及一种用于控制光放大器的增益的装置，该装置包括：目标增益计算单元，用于计算通过增加或减少增益（输出）获得的值作为光放大器的目标增益波长多路复用信号光的波长数的信号光减少;以及控制信号输出单元，用于向光放大器输出控制信号，以便以目标增益计算的目标增益放大波分复用信号光单元。这迅速地抑制信号光电平的波动，特别是由波长多路复用信号光的波长数的变化导致的光放大器的输出光功率的波动。

8. 发明授权

US07268936B2 Optical amplifier having polarization mode dispersion compensation function 有权
标题翻译：具有偏振模色散补偿功能的光放大器
公开(公告)号：US07268936B2
公开(公告)日：2007-09-11
申请号：US10761296
申请日：2004-01-22
申请人： Miki Onaka , Etsuko Hayashi , Yasushi Sugaya
发明人： Miki Onaka , Etsuko Hayashi , Yasushi Sugaya
IPC分类号： H04B10/18 , H01S3/10
CPC分类号： H04B10/291 , H04B10/2569
摘要： An object of the present invention is to provide at low cost, a highly functional and small size optical amplifier, which realizes a polarization mode dispersion (PMD) compensation function and an optical amplifying function, with a simple construction. To this end, the optical amplifier of the present invention comprises: a polarization control section that controls the polarization state of input signal light; a PMD generation section that receives the signal light from the polarization control section at a polarization-preserving fiber thereof doped with a rare earth element, and gives a differential group delay between orthogonal polarization mode components of the signal light to perform PMD compensation and at the same time amplifies the signal light; a pumping light supply section that supplies pumping light to the polarization-preserving fiber; a monitoring section that monitors the PMD generation state of the signal light from the PMD generation section, and the like; and a control section that controls the polarization control section and the pumping light supply section based on the monitor results of the monitoring section.
摘要翻译：本发明的目的是提供一种低功耗和小尺寸的光放大器，其实现了具有简单结构的偏振模色散（PMD）补偿功能和光放大功能。为此，本发明的光放大器包括：偏振控制部，其控制输入信号光的偏振状态; PMD生成部，其在掺杂有稀土元素的偏振光保留光纤处接收来自偏振光控制部的信号光，并且在信号光的正交偏振模式分量之间给出差分组延迟以执行PMD补偿，并且在同时放大信号灯; 泵浦光供给部，其向所述偏振光保持光纤供给泵浦光; 监视来自PMD生成部的信号光的PMD生成状态的监视部等，以及控制部，其基于监视部的监视结果来控制偏振控制部和泵送光供给部。

9. 发明申请

US20050185885A1 Optical multiplexing method and optical multiplexer, and optical amplifier using same 有权
标题翻译：光复用方法和光复用器，以及使用其的光放大器
公开(公告)号：US20050185885A1
公开(公告)日：2005-08-25
申请号：US10878619
申请日：2004-06-29
申请人： Miki Onaka , Etsuko Hayashi , Hiroshi Onaka
发明人： Miki Onaka , Etsuko Hayashi , Hiroshi Onaka
IPC分类号： G02B6/02 , G02B6/293 , G02B6/34 , G02F1/35 , H01S3/06 , H01S3/067 , H01S3/094 , H01S3/0941 , H01S3/10 , H01S3/30 , H04J14/02 , H01S5/50
CPC分类号： H01S3/302 , G02B6/02085 , G02B6/29319 , G02B6/2938 , H01S3/06754 , H01S3/06758 , H01S3/094015 , H01S3/094019 , H01S3/09408 , H01S3/094096 , H01S3/0941 , H04B10/291 , H04J14/02
摘要： An object of the invention is to provide an optical multiplexing method and an optical multiplexer, capable of fixing lights of different wavelengths at required wavelengths to stably multiplex them with a simple optical circuit configuration. To this end, in the present optical multiplexer, there is provided a tilted FBG, which is formed on an optical fiber through which a first light is propagated, with a grating direction thereof being tilted to an axial direction of the optical fiber, and has the sufficiently high reflectance to a second light (multiplexed light) of a wavelength different from that of the first light. The multiplexed light emitted from a light source is irradiated to the tilted FBG, via a free space from an angle direction determined according to a grating pitch of the tilted FBG and the wavelength of the multiplexed light, to be coupled within the optical fiber. Further, a low reflective FBG reflecting light coupled within the optical fiber is formed on the optical fiber, to achieve a resonance structure between the low reflective FBG and the light source, thereby stabling the wavelength of the multiplexed light.
摘要翻译：本发明的目的是提供一种光复用方法和光复用器，其能够固定所需波长的不同波长的光以便以简单的光电路配置来稳定地多路复用它们。为此，在本光传输器中，提供了一种倾斜的FBG，其形成在光纤上，第一光通过该光纤传播，其光栅方向与光纤的轴向倾斜，并且具有与第一光不同的波长的第二光（复用光）具有足够高的反射率。从光源发射的复用光经由自由空间从根据倾斜FBG的光栅间距确定的角度方向和复用光的波长照射到倾斜的FBG，以在光纤内耦合。此外，在光纤上形成反射耦合在光纤内的光的低反射FBG，以实现低反射FBG和光源之间的谐振结构，从而稳定复用光的波长。

10. 发明授权

US06441951B1 Optical amplification apparatus using Raman amplification 有权
标题翻译：使用拉曼放大的光学放大装置
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。

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