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1. 发明申请

US20060024063A1 Optical amplifier and optical monitor circuit 有权
标题翻译：光放大器和光电监控电路
公开(公告)号：US20060024063A1
公开(公告)日：2006-02-02
申请号：US10998064
申请日：2004-11-29
申请人： Miki Onaka , Etsuko Hayashi , Hiroshi Onaka
发明人： Miki Onaka , Etsuko Hayashi , Hiroshi Onaka
IPC分类号： H04B10/12
CPC分类号： H04B10/2941 , H01S3/06754 , H01S3/1305 , H04B10/071 , H04B10/07955
摘要： An optical amplifier of the present invention comprises: an optical amplifying circuit which amplifies a signal light; an optical reflection medium which is disposed on an optical fiber connected to the optical amplifying circuit and is capable of reflecting a noise light which exists in a predetermined wavelength range outside a signal band, among noise lights generated in said optical amplifying circuit, to radiate the reflected noise light to the outside of a core of the optical fiber; a light receiver which receives the noise light reflected to be radiated to the outside of the core of the optical fiber by the optical reflection medium, to detect the power of the noise light; and a computation circuit which computes the total power of the noise lights generated in the optical amplifying circuit based on the detection result of the light receiver. Thus, it is possible to provide at a low cost an optical amplifier provided with a monitoring function capable of detecting high accurately, with a simple optical circuit configuration, the noise light power and the like generated when the signal light is amplified.
摘要翻译：本发明的光放大器包括：放大信号光的光放大电路; 光反射介质，其设置在与光放大电路连接的光纤上，并且能够反射存在于信号频带外的预定波长范围内的噪声光，在所述光放大电路中产生的噪声光中，将反射的噪声光反射到光纤的核心的外部; 光接收器，其通过光反射介质接收被辐射到光纤的芯的外部的噪声光，以检测噪声光的功率; 以及计算电路，其基于所述光接收器的检测结果来计算在所述光放大电路中产生的噪声光的总功率。因此，可以以低成本提供具有能够以简单的光电路结构高精度检测的监视功能的光放大器，当信号光被放大时产生的噪声光功率等。

2. 发明授权

US07688498B2 Optical amplifier and optical monitor circuit 有权
标题翻译：光放大器和光电监控电路
公开(公告)号：US07688498B2
公开(公告)日：2010-03-30
申请号：US10998064
申请日：2004-11-29
申请人： Miki Onaka , Etsuko Hayashi , Hiroshi Onaka
发明人： Miki Onaka , Etsuko Hayashi , Hiroshi Onaka
IPC分类号： H01S3/00
CPC分类号： H04B10/2941 , H01S3/06754 , H01S3/1305 , H04B10/071 , H04B10/07955
摘要： An optical amplifier of the present invention comprises: an optical amplifying circuit which amplifies a signal light; an optical reflection medium which is disposed on an optical fiber connected to the optical amplifying circuit and is capable of reflecting a noise light which exists in a predetermined wavelength range outside a signal band, among noise lights generated in said optical amplifying circuit, to radiate the reflected noise light to the outside of a core of the optical fiber; a light receiver which receives the noise light reflected to be radiated to the outside of the core of the optical fiber by the optical reflection medium, to detect the power of the noise light; and a computation circuit which computes the total power of the noise lights generated in the optical amplifying circuit based on the detection result of the light receiver. Thus, it is possible to provide at a low cost an optical amplifier provided with a monitoring function capable of detecting high accurately, with a simple optical circuit configuration, the noise light power and the like generated when the signal light is amplified.
摘要翻译：本发明的光放大器包括：放大信号光的光放大电路; 光反射介质，其设置在与光放大电路连接的光纤上，并且能够反射存在于信号频带外的预定波长范围内的噪声光，在所述光放大电路中产生的噪声光中，将反射的噪声光反射到光纤的核心的外部; 光接收器，其通过光反射介质接收被辐射到光纤的芯的外部的噪声光，以检测噪声光的功率; 以及计算电路，其基于所述光接收器的检测结果来计算在所述光放大电路中产生的噪声光的总功率。因此，可以以低成本提供具有能够以简单的光电路结构高精度检测的监视功能的光放大器，当信号光被放大时产生的噪声光功率等。

3. 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。

4. 发明授权

US07127139B2 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：US07127139B2
公开(公告)日：2006-10-24
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： G02B6/34
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。

5. 发明授权

US06741390B2 Variable wavelength light source apparatus and optical amplifier using same 有权
标题翻译：可变波长光源装置和使用其的光放大器
公开(公告)号：US06741390B2
公开(公告)日：2004-05-25
申请号：US10347624
申请日：2003-01-22
申请人： Miki Onaka , Etsuko Hayashi , Hiroshi Onaka
发明人： Miki Onaka , Etsuko Hayashi , Hiroshi Onaka
IPC分类号： H01S300
CPC分类号： G02B26/0808 , H01S3/094096 , H01S3/1055 , H01S3/302 , H01S5/02284 , H01S5/0687 , H01S5/143 , H01S5/4012 , H01S5/4062 , H01S5/4087 , H04B10/506 , H04B10/572
摘要： It is an object of the present invention to provide a variable wavelength light source apparatus capable of changing continuously wavelengths of a plurality of oscillation light over a wideband and an optical amplifier using the same. In order to achieve the above object, the variable wavelength light source apparatus comprises: a wavelength selection device in which a propagation direction of emitted light is changed according to a wavelength of incident light; a plurality of light sources emitting the light that has reciprocated in a gain medium with a high reflecting mirror on an end face thereof and has been amplified, to a predetermined position of the wavelength selection device at angles different from each other; an optical resonance reflection section reflecting a part of the light incident vertically out of the emitted light from the wavelength selection device to form an optical resonator configuration between the optical resonance reflection section and each of the high reflecting mirrors of the light sources to generate oscillation light; an optical coupler section coupling the oscillation light transmitted through the optical resonance reflection section in an output light path; and a drive section changing an arrangement angle of the wavelength selection device with respect to the optical resonance reflection section according to desired wavelength setting.
摘要翻译：本发明的目的是提供一种能够改变宽带上的多个振荡光的连续波长的可变波长光源装置和使用其的光放大器。为了实现上述目的，可变波长光源装置包括：波长选择装置，其中发射光的传播方向根据入射光的波长而改变; 发射在增益介质中在其端面上具有高反射镜的放大器的光的多个光源已经被放大到彼此不同角度的波长选择装置的预定位置; 反射从波长选择装置发射的光垂直入射的光的一部分的光学共振反射部分，以在光学谐振反射部分和光源的每个高反射镜之间形成光学谐振器结构，以产生振荡光 ; 光耦合器部分，其在输出光路中耦合透过光学共振反射部分的振荡光; 以及根据期望的波长设置改变波长选择装置相对于光学共振反射部分的布置角度的驱动部分。

6. 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。

7. 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。

8. 发明授权

US07394589B2 Optical amplifier for wide band Raman amplification of wavelength division multiplexed (WDM) signal lights 有权
标题翻译：用于波分复用（WDM）信号灯的宽带拉曼放大的光放大器
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。

9. 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。

10. 发明申请

US20050132785A1 Raman amplifier and wavelength division multiplexing optical communication system, and method of controlling raman amplification 有权
标题翻译：拉曼放大器和波分复用光通信系统，以及拉曼放大控制方法
公开(公告)号：US20050132785A1
公开(公告)日：2005-06-23
申请号：US11039905
申请日：2005-01-24
申请人： Miki Onaka , Yasushi Sugaya , Etsuko Hayashi
发明人： Miki Onaka , Yasushi Sugaya , Etsuko Hayashi
IPC分类号： G02F1/35 , H01S3/067 , H01S3/094 , H01S3/13 , H01S3/131 , H01S3/16 , H01S3/30 , H01S5/14 , H04B10/07 , H04B10/29 , H04B10/294 , H04J14/00 , H04J14/02 , G01L3/26
CPC分类号： H04B10/2916 , H01S3/06754 , H01S3/094003 , H01S3/094042 , H01S3/094046 , H01S3/094096 , H01S3/1301 , H01S3/1618 , H01S3/302 , H01S5/141
摘要： The present invention has an object to provide a Raman amplifier, a WDM optical communication system and a method of controlling the Raman amplification, capable of optimizing amplification characteristics in response to a change of operating conditions of the system so that transmission quality of the WDM signal light can be maintained in good. In order to achieve the above object, in the Raman amplifier according to the present invention, a plurality of pumping light generated by a pumping light generating section capable of varying a wavelength and power of the plurality of pumping light, are multiplexed by a pumping light multiplexing section that has wavelength variable transmission characteristics, and are supplied to an optical transmission path via a pumping light supplying section, and signal light being propagated through the optical transmission path is Raman amplified, wherein the Raman amplifier comprises a pumping light administrating section that controls supply conditions of the pumping light by adjusting operational setting of the pumping light generating section and the wavelength transmission characteristics of the pumping light multiplexing section in synchronization with the change with time of the system operational conditions.
摘要翻译：本发明的目的是提供拉曼放大器，WDM光通信系统和控制拉曼放大的方法，其能够响应于系统的操作条件的变化来优化放大特性，使得WDM信号的传输质量光能保持良好。为了实现上述目的，在根据本发明的拉曼放大器中，由能够改变多个泵浦光的波长和功率的泵浦光产生部分产生的多个泵浦光由泵浦光具有波长可变传输特性的复用部分，并且经由泵浦光供应部分被提供给光传输路径，并且通过光传输路径传播的信号光是拉曼放大的，其中拉曼放大器包括控制通过随着系统操作条件随时间的变化同步地调节泵浦光发生部分的操作设置和泵浦光复用部分的波长传输特性来调节泵浦光的供给条件。

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