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公开(公告)号：US08019232B2
公开(公告)日：2011-09-13
申请号：US10592032
申请日：2004-03-10
IPC分类号： H04B10/04
CPC分类号： H04B10/505 , H04B10/5055 , H04B10/5561
摘要： A method of phase modulating optical radiation by the steps of phase modulating the optical radiation by using a modulator having an extinction ratio in order to provide a multilevel phase shift key signal, and applying to each optical pulse a phase-shift having an absolute value depending on the extinction ratio and a sign depending, for each of the optical pulses, on the respective optical phase value. An apparatus implementing the method is also disclosed.
摘要翻译： 通过使用具有消光比的调制器对光辐射进行相位调制以便提供多电平相移键信号的步骤来相位调制光辐射的方法，并且向每个光脉冲施加具有绝对值的绝对值的相移 对于每个光脉冲，消光比和相应的光学相位值的符号。 还公开了一种实现该方法的装置。
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公开(公告)号：US08781337B2
公开(公告)日：2014-07-15
申请号：US13226149
申请日：2011-09-06
CPC分类号： H04B10/505 , H04B10/5055 , H04B10/5561
摘要： A method of phase modulating optical radiation by the steps of phase modulating the optical radiation by using a modulator having an extinction ratio in order to provide a multilevel phase shift key signal, and applying to each optical pulse a phase-shift having an absolute value depending on the extinction ratio and a sign depending, for each of the optical pulses, on the respective optical phase value. An apparatus implementing the method is also disclosed.
摘要翻译： 通过使用具有消光比的调制器对光辐射进行相位调制以便提供多电平相移键信号的步骤来相位调制光辐射的方法，并且向每个光脉冲施加具有绝对值的绝对值的相移 对于每个光脉冲，消光比和相应的光学相位值的符号。 还公开了一种实现该方法的装置。
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公开(公告)号：US20070274731A1
公开(公告)日：2007-11-29
申请号：US10592032
申请日：2004-03-10
IPC分类号： H04B10/155
CPC分类号： H04B10/505 , H04B10/5055 , H04B10/5561
摘要： A method of phase modulating optical radiation by the steps of phase modulating the optical radiation by using a modulator having an extinction ratio in order to provide a multilevel phase shift key signal, and applying to each optical pulse a phase-shift having an absolute value depending on the extinction ratio and a sign depending, for each of the optical pulses, on the respective optical phase value. An apparatus implementing the method is also disclosed.
摘要翻译： 通过使用具有消光比的调制器对光辐射进行相位调制以便提供多电平相移键信号的步骤来相位调制光辐射的方法，并且向每个光脉冲施加具有绝对值的绝对值的相移 对于每个光脉冲，消光比和相应的光学相位值的符号。 还公开了一种实现该方法的装置。
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公开(公告)号：US06483629B1
公开(公告)日：2002-11-19
申请号：US09217841
申请日：1998-12-22
IPC分类号： H01S330
CPC分类号： H01S3/0057 , H01S3/06754 , H01S3/2383 , H01S3/302
摘要： An optical window signal generator which begins generation of an optical output signal in response to an optical activation pulse, and terminates generation of the optical output signal in response to an optical deactivation pulse. The rise time of the optical output signal is equal to the rise time of the optical activation pulse, and its fall time is equal to the rise time of the optical deactivation pulse.
摘要翻译： 一种光学窗口信号发生器，其响应于光学激活脉冲开始产生光学输出信号，并且响应于光学去激活脉冲终止光学输出信号的产生。 光输出信号的上升时间等于光激活脉冲的上升时间，其下降时间等于光失活脉冲的上升时间。
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公开(公告)号：US20060140636A1
公开(公告)日：2006-06-29
申请号：US10536807
申请日：2002-11-29
IPC分类号： H04B10/12
CPC分类号： H04B10/25137 , H04B10/25253
摘要： An optical communication system has a transmitter generating a phase-modulated optical signal (Sa, Sb, . . . , Sk); a receiver for receiving the phase-modulated optical signal; an optical communication link between the transmitter section and the receiver section. The optical communication link is a dispersion-managed optical communication link having dispersion-compensating elements propagating the phase-modulated optical signal at substantially constant optical power. The receiver has a dispersive element having a prescribed dispersion, the dispersive element receiving and converting the phase-modulated optical signal into a corresponding intensity-modulated optical signal, and an optical intensity detector fed with the intensity-modulated optical signal.
摘要翻译： 光通信系统具有产生相位调制光信号（Sa，Sb ...，Sk）的发射机; 用于接收相位调制光信号的接收机; 在发射机部分和接收机部分之间的光通信链路。 光通信链路是色散管理的光通信链路，其色散补偿元件以基本恒定的光功率传播相位调制的光信号。 接收器具有具有规定色散的色散元件，色散元件接收并将相位调制光信号转换为对应的强度调制光信号，以及馈送有强度调制光信号的光强度检测器。
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公开(公告)号：US08437645B2
公开(公告)日：2013-05-07
申请号：US12739842
申请日：2007-12-06
CPC分类号： H04B10/6161 , H04B10/61 , H04B10/6162 , H04B10/63 , H04B10/64
摘要： An optical communication system (100; 2300) comprises at least a transmitter (110) apt to emit a differential phase shift keying (DPSK) optical signal having a bit-rate equal to R, at least a receiving system (1200) for receiving the differential phase shift keying optical signal; and an optical link (130) optically connecting the transmitter and the receiving system for transmitting the DPSK optical signal from the transmitter to the receiving system, wherein the receiving system comprises a coherent optical receiving device (1205) apt to coherently receive the propagated DPSK optical signal and to emit at least one electrical signal (I) related to the received DPSK optical signal, and wherein the receiving system further comprises at least one electrical filter (270) for filtering the at least one electrical signal and having −3 dB double-side bandwidth greater than or equal to 0.44 R and lower than or equal to 0.68 R, and at least one squarer (280) for squaring the at least one filtered electrical signal. A related method for optical communication is also disclosed.
摘要翻译： 光通信系统（100; 2300）至少包括一个适于发射具有等于R的比特率的差分相移键控（DPSK）光信号的发射机（110），至少一接收系统（1200） 差分相移键控光信号; 以及光链路（130），其将所述发射机和所述接收系统光学连接，用于将所述DPSK光信号从所述发射机发射到所述接收系统，其中，所述接收系统包括相干光接收装置（1205），所述相干光接收装置适于相干地接收所传播的DPSK光 信号并且发射与所接收的DPSK光信号相关的至少一个电信号（I），并且其中所述接收系统还包括用于对所述至少一个电信号进行滤波并具有-3dB双频信号的至少一个电滤波器（270） 侧带宽大于或等于0.44 R且小于或等于0.68 R，以及至少一平方（280）用于平坦化至少一个滤波后的电信号。 还公开了一种用于光通信的相关方法。
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公开(公告)号：US20100266291A1
公开(公告)日：2010-10-21
申请号：US12739842
申请日：2007-12-06
IPC分类号： H04B10/00
CPC分类号： H04B10/6161 , H04B10/61 , H04B10/6162 , H04B10/63 , H04B10/64
摘要： An optical communication system (100; 2300) comprises at least a transmitter (110) apt to emit a differential phase shift keying (DPSK) optical signal having a bit-rate equal to R, at least a receiving system (1200) for receiving the differential phase shift keying optical signal; and an optical link (130) optically connecting the transmitter and the receiving system for transmitting the DPSK optical signal from the transmitter to the receiving system, wherein the receiving system comprises a coherent optical receiving device (1205) apt to coherently receive the propagated DPSK optical signal and to emit at least one electrical signal (I) related to the received DPSK optical signal, and wherein the receiving system further comprises at least one electrical filter (270) for filtering the at least one electrical signal and having −3 dB double-side bandwidth greater than or equal to 0.44 R and lower than or equal to 0.68 R, and at least one squarer (280) for squaring the at least one filtered electrical signal. A related method for optical communication is also disclosed.
摘要翻译： 光通信系统（100; 2300）至少包括一个适于发射具有等于R的比特率的差分相移键控（DPSK）光信号的发射机（110），至少一接收系统（1200） 差分相移键控光信号; 以及光链路（130），其将所述发射机和所述接收系统光学连接，用于将所述DPSK光信号从所述发射机发射到所述接收系统，其中，所述接收系统包括相干光接收装置（1205），所述相干光接收装置适于相干地接收所传播的DPSK光 信号并且发射与所接收的DPSK光信号相关的至少一个电信号（I），并且其中所述接收系统还包括用于对所述至少一个电信号进行滤波并具有-3dB双频信号的至少一个电滤波器（270） 侧带宽大于或等于0.44 R且小于或等于0.68 R，以及至少一平方（280）用于平坦化至少一个滤波后的电信号。 还公开了一种用于光通信的相关方法。
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8.发明申请公开(公告)号：US20100232802A1
公开(公告)日：2010-09-16
申请号：US12520914
申请日：2006-12-27
申请人： Pierpaolo Boffi , Giorgio Grasso , Lucia Marazzi , Paola Parolari , Aldo Righetti , Marco Romagnoli , Giovanni Tamiri
发明人： Pierpaolo Boffi , Giorgio Grasso , Lucia Marazzi , Paola Parolari , Aldo Righetti , Marco Romagnoli , Giovanni Tamiri
CPC分类号： H04B10/25133 , G02B6/29343 , G02B6/29394
摘要： Optical transmission system (200) comprising: an optical source (210) adapted to generate a modulated optical signal having an optical spectrum and a dispersion robustness; an optical dispersion compensation filter (250) optically connected to the optical source, comprising at least two cascaded optical resonators and having a periodic transfer function that is rigidly translatable in the frequency spectrum and characterized by a free spectral range (FSR); a control system (270; 280; 260) adapted to act on the optical compensation filter in order rigidly to translate said transfer function along the frequency spectrum in a first and in a second position in such a way that: in a first position in the frequency spectrum of said transfer function, the mean chromatic dispersion weighted over said optical spectrum of the modulated signal is greater, in absolute value, than the value of dispersion robustness; in a second position in the frequency spectrum of said transfer function, the mean chromatic dispersion weighted over said optical spectrum of the modulated signal is smaller, in absolute value, than the value of dispersion robustness; in the first and in the second position the mean slope of the chromatic dispersion weighted over said optical spectrum of the modulated signal is smaller, in absolute terms, than 300000 ps/nm2, where the translation of said transfer function between the first and the second position is smaller than said FSR.
摘要翻译： 光传输系统（200）包括：光源（210），适于产生具有光谱和色散鲁棒性的调制光信号; 光学连接到光源的光学色散补偿滤波器（250），包括至少两个级联的光学谐振器，并且具有在频谱中可刚性地平移的周期性传递函数，并且由自由光谱范围（FSR）表征。 控制系统（270; 280; 260），其适于作用在所述光学补偿滤波器上，以便在第一和第二位置中沿着所述频谱平移所述传递函数，使得在所述光学补偿滤波器中的第一位置处于 所述传递函数的频谱，在调制信号的所述光谱上加权的平均色散比绝对值大于色散鲁棒性的值; 在所述传递函数的频谱中的第二位置，在所述调制信号的所述光谱上加权的平均色散比绝对值小于分散鲁棒性的值; 在第一位置和第二位置，在调制信号的所述光谱上加权的色散的平均斜率绝对值小于300000ps / nm2，其中所述第一和第二信号之间的所述传递函数的平移 位置小于所述FSR。
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公开(公告)号：US08380076B2
公开(公告)日：2013-02-19
申请号：US12520914
申请日：2006-12-27
申请人： Pierpaolo Boffi , Giorgio Grasso , Lucia Marazzi , Paola Parolari , Aldo Righetti , Marco Romagnoli , Giovanni Tamiri
发明人： Pierpaolo Boffi , Giorgio Grasso , Lucia Marazzi , Paola Parolari , Aldo Righetti , Marco Romagnoli , Giovanni Tamiri
CPC分类号： H04B10/25133 , G02B6/29343 , G02B6/29394
摘要： An optical transmission system having an optical source, an optical dispersion compensation filter optically connected to the optical source, and a control system. The optical source generates a modulated optical signal having an optical spectrum and a value of dispersion robustness. The optical dispersion compensation filter has at least two cascaded optical resonators and a periodic transfer function rigidly translatable in the frequency spectrum to obtain translation in frequency of the transfer function without a substantial change in shape, and characterized by a free spectral range. The control system acts on the optical dispersion compensation filter in order to rigidly translate the transfer function along the frequency spectrum in first and second positions in the frequency spectrum. The translation of the transfer function between the first and the second positions is smaller than the free spectral range.
摘要翻译： 一种具有光源，光学连接到光源的光学色散补偿滤光器和控制系统的光传输系统。 光源产生具有光谱和色散鲁棒性值的调制光信号。 光学色散补偿滤波器具有至少两个级联的光学谐振器和在频谱中可以刚性地平移的周期性传递函数，以获得传递函数的频率的平移，而不会形成实质的变化，并且其特征在于自由光谱范围。 控制系统作用于光学色散补偿滤波器，以便在频谱中的第一和第二位置沿着频谱刚性地平移传递函数。 第一和第二位置之间的传递函数的平移小于自由光谱范围。
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公开(公告)号：US06259552B1
公开(公告)日：2001-07-10
申请号：US09564500
申请日：2000-05-04
申请人： Pierpaolo Boffi , Lucia Marazzi , Mario Martinelli
发明人： Pierpaolo Boffi , Lucia Marazzi , Mario Martinelli
IPC分类号： G02F1365
CPC分类号： H04B10/299 , G02F1/3519 , G02F2/004
摘要： There is provided an optical wavelength converter which allows the rapid and efficient shifting of information modulated on a light signal of one wavelength to a light signal of a second wavelength without the negative effects of noise and other disturbances which have proven to be problems in the prior art. The device splits a CW probe signal of a first wavelength into two components, which propagate with opposite orientations through a Kerr leg. Also propagating in the Kerr leg is a modulated drive signal at a second wavelength. These signals interact in the Kerr leg, and are recombined at an output coupler so as to create interference between the two probe components. An intensity modulated probe signal is output.
摘要翻译： 提供了一种光学波长转换器，其允许将在一个波长的光信号上调制的信息快速有效地移位到第二波长的光信号，而不会产生噪声和其他干扰的负面影响，这已被证明是先前的问题 艺术。 该设备将第一波长的CW探测信号分成两个分量，它们通过克尔分支以相反的方向传播。 在克尔腿部中传播也是第二波长的调制驱动信号。 这些信号在Kerr支路中相互作用，并在输出耦合器处重组，以便在两个探头部件之间产生干扰。 输出强度调制探测信号。
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