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1. 发明授权

US08553318B2 Optical amplifying device, gain control method, optical transmission device, and gain control device 有权
标题翻译：光放大装置，增益控制方法，光传输装置和增益控制装置
公开(公告)号：US08553318B2
公开(公告)日：2013-10-08
申请号：US13042545
申请日：2011-03-08
申请人： Tomoaki Takeyama
发明人： Tomoaki Takeyama
IPC分类号： H01S3/067 , H01S3/10 , H01S3/13 , H04B10/29 , H04B10/079 , H04B10/294
CPC分类号： H01S3/10015 , H01S3/06754 , H01S3/1301 , H01S3/1608 , H01S2301/06 , H04B10/07955 , H04B10/2942 , H04J14/0204 , H04J14/0212 , H04J14/0221 , H04J14/0227 , H04J14/0257 , H04J14/0258
摘要： An apparatus includes: an optical amplifier configured to perform optical amplification for gain by controlling so as to be a target gain; a correction power calculator configured to calculate, in response to amplified spontaneous emission light input to the optical amplifier, correction power corresponding to an amount of gain depression in a bandwidth in which spectral hole-burning occurs in the optical amplifier; and a gain controller configured to calculate, using the correction power calculated in the correction power calculator, a gain for controlling the optical amplification performed in the optical amplifier and perform, using the calculated gain, a control operation so that the gain of the optical amplification becomes the target gain.
摘要翻译：一种装置，包括：光放大器，被配置为通过控制成为目标增益来执行增益的光放大; 校正功率计算器，被配置为响应于输入到所述光放大器的放大的自发发射光来计算对应于在所述光放大器中发生频谱空穴燃烧的带宽中的增益下降量的校正功率; 以及增益控制器，被配置为使用在校正功率计算器中计算的校正功率来计算用于控制在光放大器中执行的光放大的增益，并且使用所计算的增益执行控制操作，使得光放大的增益成为目标收益。

2. 发明授权

US08199784B2 Laser light source and method of operating the same 有权
标题翻译：激光光源及其操作方法
公开(公告)号：US08199784B2
公开(公告)日：2012-06-12
申请号：US12248984
申请日：2008-10-10
申请人： Stefan Mohrdiek , Joerg Troger , Nicolai Matuschek
发明人： Stefan Mohrdiek , Joerg Troger , Nicolai Matuschek
IPC分类号： H01S3/098 , H01S3/13
CPC分类号： H01S5/146 , H01S3/06754 , H01S3/094003 , H01S3/094076 , H01S3/09415 , H01S3/1305 , H01S5/0287 , H01S5/06216 , H01S5/0657 , H01S5/06835 , H01S5/1021 , H01S5/141 , H01S2301/03 , H01S2301/06
摘要： A laser light source comprises a semiconductor laser adapted for pulsed operation, a partially transmitting wavelength selective light reflector. The semiconductor laser comprises a front facet and a back facet. The front facet and the back facet define an internal laser cavity. The internal laser cavity comprises a laser active medium. The partially transmitting wavelength selective light reflector has a peak reflectivity within a gain bandwidth of said laser active medium. The wavelength selective light reflector and the back facet define an external laser cavity. A roundtrip time of light in the external laser cavity is about 20 nanoseconds or less. A full width half maximum bandwidth of the wavelength selective light reflector is adapted to accommodate at least 12 longitudinal modes of the internal laser cavity and at least 250 longitudinal modes of the external laser cavity.
摘要翻译：激光源包括适于脉冲操作的半导体激光器，部分透射的波长选择性光反射器。半导体激光器包括前刻面和后刻面。前面和后面定义了内部激光腔。内部激光腔包括激光活性介质。部分透射波长选择光反射器在所述激光活性介质的增益带宽内具有峰值反射率。波长选择性光反射器和背面定义了外部激光腔。外部激光腔的往返时间约为20纳秒或更短。波长选择光反射器的全宽度半最大带宽适于容纳至少12个纵向模式的内部激光腔和至少250个纵向模式的外部激光腔。

3. 发明授权

US07280269B2 Fast dynamic gain control in cascaded Raman fiber amplifiers 有权
公开(公告)号：US07280269B2
公开(公告)日：2007-10-09
申请号：US11424308
申请日：2006-06-15
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S4/00 , H04B10/12
CPC分类号： H01S3/06758 , H01S3/005 , H01S3/06754 , H01S3/06766 , H01S3/0677 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/302 , H01S2301/04 , H01S2301/06 , H04B10/2916 , H04B10/2942 , H04B10/296
摘要： The present invention provides methods and apparatuses for controlling a gain of a bidirectionally-pumped Raman fiber amplifier having both forward optical pumps and backward optical pumps. The overall gain is controlled by adjusting the forward optical pumps, while the power levels of the backward optical pumps are essentially fixed. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one forward optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump.

4. 发明申请

US20070109624A1 Fast Dynamic Gain Control in Cascaded Raman Fiber Amplifiers 有权
公开(公告)号：US20070109624A1
公开(公告)日：2007-05-17
申请号：US11424308
申请日：2006-06-15
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S3/00
CPC分类号： H01S3/06758 , H01S3/005 , H01S3/06754 , H01S3/06766 , H01S3/0677 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/302 , H01S2301/04 , H01S2301/06 , H04B10/2916 , H04B10/2942 , H04B10/296
摘要： The present invention provides methods and apparatuses for controlling a gain of a bidirectionally-pumped Raman fiber amplifier having both forward optical pumps and backward optical pumps. The overall gain is controlled by adjusting the forward optical pumps, while the power levels of the backward optical pumps are essentially fixed. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one forward optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump.

5. 发明授权

US06927897B2 Optical amplifier 失效
标题翻译：光放大器
公开(公告)号：US06927897B2
公开(公告)日：2005-08-09
申请号：US10859167
申请日：2004-06-03
申请人： Hiroyuki Nakano
发明人： Hiroyuki Nakano
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/07 , H01S3/10 , H04B10/2525 , H04B10/291 , H04J14/02 , H01S3/00
CPC分类号： H01S3/06758 , H01S2301/06 , H04B10/25133 , H04B10/2525 , H04B10/291 , H04B10/2912 , H04B2210/256 , H04J14/0221
摘要： A method of amplifying a signal light includes initially multiplexing a signal light and a pumping light, initially amplifying the signal light initially demultiplexing so as to separately output the amplified signal light and the pumping light, and modifying a waveform of the amplified signal light so as to compensate for waveform distortion of the signal light along a transmission path of the signal light and providing an output of a waveform modified signal light. Thereafter, the waveform modified signal lights is secondarily multiplexed, secondarily amplified, and secondarily demultiplexed with a waveform of amplified signal light being compensated for waveform distortion of the signal light along a transmission path of the signal light and providing an output of a waveform modified signal light.
摘要翻译：放大信号光的方法包括：首先对信号光和泵浦光进行多路复用，最初对信号光进行最初的解复用放大，以分别输出放大的信号光和泵浦光，并修改放大信号光的波形，以便以补偿沿着信号光的传输路径的信号光的波形失真并提供波形修改的信号光的输出。此后，波形修正信号光被二次多路复用，二次放大，二次解复用，其中放大信号光的波形被补偿沿着信号光的传输路径的信号光的波形失真，并提供波形修改信号的输出光。

6. 发明授权

US06829408B2 Optical amplifier, optical transmission equipment, optical transmission system, and method thereof 失效
公开(公告)号：US06829408B2
公开(公告)日：2004-12-07
申请号：US10727665
申请日：2003-12-05
申请人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
发明人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
IPC分类号： G02B628
CPC分类号： H04B10/291 , H01S3/06758 , H01S3/094061 , H01S2301/06 , H04B10/0775 , H04B10/0777 , H04B10/25133 , H04B10/2525 , H04B10/2912 , H04B10/2931 , H04B2210/074 , H04B2210/078 , H04B2210/256
摘要： An optical transmission equipment for use in an optical transmission system, having an optical amplifier (10A), comprising: a first optical doped fiber (1A); a second optical doped fiber (1B); a third optical doped fiber (1C); an optical isolator (6) of bringing loss in the optical signal, being provided between the first optical doped fiber and the second optical doped fiber; a dispersion compensator (7) being provided between the second optical doped fiber and the third optical doped fiber; and a pumping light source (2) being optically connected to so that the optical doped fibers (1A, 1B, 1C) are excited in common.

7. 发明申请

US20040218256A1 Optical Amplifier 失效
标题翻译：光放大器
公开(公告)号：US20040218256A1
公开(公告)日：2004-11-04
申请号：US10859167
申请日：2004-06-03
发明人： Hiroyuki Nakano
IPC分类号： H01S003/00
CPC分类号： H01S3/06758 , H01S2301/06 , H04B10/25133 , H04B10/2525 , H04B10/291 , H04B10/2912 , H04B2210/256 , H04J14/0221
摘要： A method of amplifying a signal light includes initially multiplexing a signal light and a pumping light, initially amplifying the signal light initially demultiplexing so as to separately output the amplified signal light and the pumping light, and modifying a waveform of the amplified signal light so as to compensate for waveform distortion of the signal light along a transmission path of the signal light and providing an output of a waveform modified signal light. Thereafter, the waveform modified signal lights is secondarily multiplexed, secondarily amplified, and secondarily demultiplexed with a waveform of amplified signal light being compensated for waveform distortion of the signal light along a transmission path of the signal light and providing an output of a waveform modified signal light.
摘要翻译：放大信号光的方法包括：首先对信号光和泵浦光进行多路复用，最初对信号光进行最初的解复用放大，以分别输出放大的信号光和泵浦光，并修改放大信号光的波形，以便以补偿沿着信号光的传输路径的信号光的波形失真并提供波形修改的信号光的输出。此后，波形修正信号光被二次多路复用，二次放大，二次解复用，其中放大信号光的波形被补偿沿着信号光的传输路径的信号光的波形失真，并提供波形修改信号的输出光。

8. 发明授权

US06714345B2 Semiconductor optical amplifier providing high gain, high power and low noise figure 失效
标题翻译：提供高增益，高功率和低噪声系数的半导体光放大器
公开(公告)号：US06714345B2
公开(公告)日：2004-03-30
申请号：US10133923
申请日：2002-04-25
申请人： Nicholas J. Traynor
发明人： Nicholas J. Traynor
IPC分类号： H01S220
CPC分类号： H01S5/5027 , H01S5/1014 , H01S5/4025 , H01S2301/02 , H01S2301/06 , H04B10/2914 , H04B10/2935
摘要： An optical signal amplifier includes a first semiconductor optical amplifier having an input for receiving an optical signal, and an output, wherein the optical signal is amplified by the first semiconductor optical amplifier resulting in an amplified optical signal. The optical amplifier also includes an optical signal isolator having an input in optical communication with the output of the first semiconductor optical amplifier, and an output, wherein the optical signal isolator receives the amplified signal from the first semiconductor optical amplifier and allows for transmission of an optical signal in a single direction. The optical amplifier further includes a second semiconductor optical amplifier having an input for receiving the amplified optical signal from the optical signal isolator, and an output, wherein the amplified optical signal is amplified by the second semiconductor optical amplifier resulting in a twice amplified optical signal.
摘要翻译：光信号放大器包括具有用于接收光信号的输入的第一半导体光放大器和输出，其中光信号被第一半导体光放大器放大，导致放大的光信号。光放大器还包括具有与第一半导体光放大器的输出光通信的输入的光信号隔离器和输出，其中光信号隔离器接收来自第一半导体光放大器的放大信号，并允许光信号在单一方向。光放大器还包括具有用于从光信号隔离器接收放大的光信号的输入端和输出端的第二半导体光放大器，其中放大的光信号被第二半导体光放大器放大，导致两倍放大的光信号。

9. 发明授权

US06674938B2 Optical amplifier, optical transmission equipment, optical transmission system, and method thereof 失效
公开(公告)号：US06674938B2
公开(公告)日：2004-01-06
申请号：US10242600
申请日：2002-09-13
申请人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
发明人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
IPC分类号： G02B628
CPC分类号： H04B10/291 , H01S3/06758 , H01S3/094061 , H01S2301/06 , H04B10/0775 , H04B10/0777 , H04B10/25133 , H04B10/2525 , H04B10/2912 , H04B10/2931 , H04B2210/074 , H04B2210/078 , H04B2210/256
摘要： An optical transmission equipment for use in an optical transmission system, having an optical amplifier (10A), comprising: a first optical doped fiber (1A); a second optical doped fiber (1B); a third optical doped fiber (1C); an optical isolator (6) of bringing loss in the optical signal, being provided between the first optical doped fiber and the second optical doped fiber; a dispersion compensator (7) being provided between the second optical doped fiber and the third optical doped fiber; and a pumping light source (2) being optically connected to so that the optical doped fibers (1A, 1B, 1C) are excited in common.

10. 发明申请

US20030197920A1 Optical amplifying method 失效
标题翻译：光学放大法
公开(公告)号：US20030197920A1
公开(公告)日：2003-10-23
申请号：US10445944
申请日：2003-05-28
发明人： Hiroyuki Nakano
IPC分类号： H01S003/00
CPC分类号： H01S3/06758 , H01S2301/06 , H04B10/25133 , H04B10/2525 , H04B10/291 , H04B10/2912 , H04B2210/256 , H04J14/0221
摘要： A method of amplifying a signal light includes initially multiplexing a signal light and a pumping light, initially amplifying the signal light initially demultiplexing so as to separately output the amplified signal light and the pumping light, and modifying a waveform of the amplified signal light so as to compensate for waveform distortion of the signal light along a transmission path of the signal light and providing an output of a waveform modified signal light. Thereafter, the waveform modified signal lights is secondarily multiplexed, secondarily amplified, and secondarily demultiplexed with a waveform of amplified signal light being compensated for waveform distortion of the signal light along a transmission path of the signal light an output of a waveform modified signal light. The waveform modified signal light is thirdly multiplexed and thirdly amplified so as to provide an output of amplified waveform modified signal light.
摘要翻译：放大信号光的方法包括：首先对信号光和泵浦光进行多路复用，最初对信号光进行最初的解复用放大，以分别输出放大的信号光和泵浦光，并修改放大信号光的波形，以便以补偿沿着信号光的传输路径的信号光的波形失真并提供波形修改的信号光的输出。此后，波形修正的信号光被二次多路复用，二次放大，二次解复用，其中放大的信号光的波形被补偿信号光的波形失真沿信号光的波形修正信号光的输出。波形修正信号光被第三次复用并进行第三次放大，以便提供放大的波形修正信号光的输出。

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