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1. 发明授权

US08380076B2 Optical transmission system with optical chromatic dispersion compensator 有权
标题翻译：具有光色散补偿器的光传输系统
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
IPC分类号： H04B10/12 , H04B10/00 , H04B10/02 , H04J14/02
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。

2. 发明申请

US20100232802A1 OPTICAL TRANSMISSION SYSTEM WITH OPTICAL CHROMATIC DISPERSION COMPENSATOR 有权
标题翻译：具有光学色散补偿器的光传输系统
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
IPC分类号： H04B10/12 , H04B10/04
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。

3. 发明授权

US08494318B2 Method and device for hitless tunable optical filtering 有权
标题翻译：无源可调光滤波的方法和装置
公开(公告)号：US08494318B2
公开(公告)日：2013-07-23
申请号：US12513993
申请日：2006-11-09
申请人： Lorenzo Bolla , Paola Galli , Silvia Ghidini , Giorgio Grasso , Marco Romagnoli , Luciano Socci
发明人： Lorenzo Bolla , Paola Galli , Silvia Ghidini , Giorgio Grasso , Marco Romagnoli , Luciano Socci
IPC分类号： G02B6/42 , H04J14/02
CPC分类号： G02B6/29395 , G02B6/12007 , G02B6/29343 , G02B6/29383 , H04J14/0206 , H04J14/021
摘要： A method of filtering an optical signal includes operating an optical filter having resonators, each having a respective free spectral range and a respective resonance falling within a first frequency band, first tuning at least one resonator with respect to at least another resonator to obtain a separation between any resonance of at least one resonator falling within an optical bandwidth with respect to a resonance of at least another resonator nearest to the any resonance, second tuning all the resonators of the optical filter so as to move all respective resonances by a respective frequency interval greater than a frequency spacing, and third tuning the at least one resonator and the at least another resonator such that a further respective resonance of each one of the resonators falls within a second frequency band, different from the first frequency band.
摘要翻译：一种对光信号进行滤波的方法包括操作具有谐振器的滤光器，每个滤光器具有相应的自由光谱范围和落在第一频带内的相应谐振器，首先调谐至少一个谐振器至少另一谐振器以获得分离在至少一个谐振器的至少一个谐振器相对于至少另一个最接近任何谐振的谐振器的谐振之间的谐振之间的任何谐振之间，对光滤波器的所有谐振器进行二次调谐，以便将所有相应的谐振移动相应的频率间隔大于频率间隔，以及对所述至少一个谐振器和所述至少另一个谐振器进行第三调谐，使得每个所述谐振器的另外的相应谐振落入与所述第一频带不同的第二频带内。

4. 发明申请

US20100183312A1 METHOD AND DEVICE FOR HITLESS TUNABLE OPTICAL FILTERING 有权
标题翻译：用于无线可控光学滤波的方法和装置
公开(公告)号：US20100183312A1
公开(公告)日：2010-07-22
申请号：US12513993
申请日：2006-11-09
申请人： Lorenzo Bolla , Paola Galli , Silvia Ghidini , Giorgio Grasso , Marco Romagnoli , Luciano Socci
发明人： Lorenzo Bolla , Paola Galli , Silvia Ghidini , Giorgio Grasso , Marco Romagnoli , Luciano Socci
IPC分类号： H04J14/02
CPC分类号： G02B6/29395 , G02B6/12007 , G02B6/29343 , G02B6/29383 , H04J14/0206 , H04J14/021
摘要： The method for filtering an optical signal comprising a plurality of channels lying on a grid of optical frequencies equally spaced by a frequency spacing and occupying an optical bandwidth, comprises: a) operating an optical filter comprising a plurality of resonators each having a respective free spectral range, wherein a first resonator of the plurality is optically coupled to the optical signal and the remaining resonators are optically coupled in series to the first resonator, so that a respective resonance of each one of the plurality of resonators falls within a first frequency band having bandwidth less than or equal to 15 GHz; b) operating the optical filter so as to obtain a separation between any resonance of at least one resonator falling within the optical bandwidth with respect to a resonance of at least another different resonator nearest to the any resonance, the separation being greater than or equal to 150 GHz and no more than 1 THz; c) tuning all the resonators of the optical filter so as to move all respective resonances of the resonators by a respective frequency interval greater than the frequency spacing while maintaining a distance between the any resonance of the at least one resonator with respect to the nearest resonance of the at least another different resonator not less than 150 GHz and no more than 1 THz; and d) operating the optical filter so that a further respective resonance of each one of the plurality of resonators falls within a second frequency band, different from the first frequency band, having bandwidth less than or equal to 15 GHz. A corresponding device for filtering an optical signal is disclosed.
摘要翻译：用于过滤光信号的方法包括位于以频率间隔等间隔并占据光带宽的光频率网格上的多个通道的方法，包括：a）操作包括多个谐振器的滤光器，每个谐振器各自具有相应的自由光谱范围，其中多个第一谐振器光学耦合到光信号，并且剩余的谐振器与第一谐振器串联光耦合，使得多个谐振器中的每一个谐振器的相应谐振落在具有带宽小于或等于15GHz; b）操作所述滤光器，以便获得落入所述光学带宽内的至少一个谐振器的任何谐振与至少另一不同谐振器的谐振之间的距离，所述至少另一不同谐振器最接近所述谐振，所述分离大于或等于 150 GHz，不超过1 THz; c）调整所述滤光器的所有谐振器，以使所述谐振器的所有相应谐振移动大于所述频率间隔的相应频率间隔，同时保持所述至少一个谐振器的所述谐振之间相对于所述最近谐振的距离的至少另一个不同的谐振器，不小于150GHz且不超过1THz; 以及d）操作所述滤光器，使得所述多个谐振器中的每一个的进一步的各自的谐振落入具有小于或等于15GHz的带宽的与所述第一频带不同的第二频带内。公开了一种用于滤波光信号的相应装置。

5. 发明授权

US07526157B2 Point-to-point optical fibre link 失效
标题翻译：点对点光纤链路
公开(公告)号：US07526157B2
公开(公告)日：2009-04-28
申请号：US11791611
申请日：2004-12-06
申请人： Roberto Aldeghi , Pierluigi Franco , Giorgio Grasso , Marco Romagnoli , Francesco Tassone
发明人： Roberto Aldeghi , Pierluigi Franco , Giorgio Grasso , Marco Romagnoli , Francesco Tassone
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： G02B6/2852 , G02B6/4203 , G02B6/4206 , G02B6/4246
摘要： Point-to-point link for the transmission of digital signals includes two opto-electronic conversion apparatuses and an optical cable including at least one optical fiber having two terminal portions, each opto-electronic conversion apparatus including an opto-electronic device optically coupled to a respective terminal portion between the two terminal portions of the at least one optical fiber, wherein at least one of the two opto-electronic conversion apparatuses is adapted to keep the respective terminal portion of the optical fiber in bent position with a bending radius R, where 1.5 mm≦R≦2.5 mm, and to keep the respective opto-electronic device optically coupled to the bent terminal portion in order to allow the transmission of the digital signals between the optical fiber and the at least one of the two opto-electronic conversion apparatuses; and at least the bent terminal portion of the at least one optical fiber is such as to satisfy the following relationship r/R
摘要翻译：用于传输数字信号的点对点链路包括两个光电转换装置和包括至少一个具有两个端子部分的光纤的光缆，每个光电转换装置包括光耦合到所述至少一个光纤的两个端子部分之间的相应端子部分，其中两个光电转换装置中的至少一个适于将光纤的相应端子部分保持在弯曲半径R的弯曲位置，其中为了使光纤和两个光电耦合器件中的至少一个之间的数字信号的传输能够保持光耦合到弯曲的端子部分的各个光电器件，电子转换装置; 并且至少一个光纤的弯曲端子部分至少满足r / R <0.07 * n /（35 + n）的关系，其中n是应力腐蚀敏感性因子，r是半径光纤的包层。

6. 发明申请

US20080219621A1 Point-To-Point Optical Fibre Link 失效
标题翻译：点对点光纤链路
公开(公告)号：US20080219621A1
公开(公告)日：2008-09-11
申请号：US11791611
申请日：2004-12-06
申请人： Roberto Aldeghi , Pierluigi Franco , Giorgio Grasso , Marco Romagnoli , Francesco Tassone
发明人： Roberto Aldeghi , Pierluigi Franco , Giorgio Grasso , Marco Romagnoli , Francesco Tassone
IPC分类号： G02B6/42
CPC分类号： G02B6/2852 , G02B6/4203 , G02B6/4206 , G02B6/4246
摘要： Point-to-point link for the transmission of digital signals includes two opto-electronic conversion apparatuses and an optical cable including at least one optical fiber having two terminal portions, each opto-electronic conversion apparatus including an opto-electronic device optically coupled to a respective terminal portion between the two terminal portions of the at least one optical fiber, wherein at least one of the two opto-electronic conversion apparatuses is adapted to keep the respective terminal portion of the optical fiber in bent position with a bending radius R, where 1.5 mm≦R≦2.5 mm, and to keep the respective opto-electronic device optically coupled to the bent terminal portion in order to allow the transmission of the digital signals between the optical fiber and the at least one of the two opto-electronic conversion apparatuses; and at least the bent terminal portion of the at least one optical fiber is such as to satisfy the following relationship r/R
摘要翻译：用于传输数字信号的点对点链路包括两个光电转换装置和包括至少一个具有两个端子部分的光纤的光缆，每个光电转换装置包括光耦合到所述至少一个光纤的两个端子部分之间的相应端子部分，其中两个光电转换装置中的至少一个适于将光纤的相应端子部分保持在弯曲半径R的弯曲位置，其中为了使光纤和两个光电耦合器件中的至少一个之间的数字信号的传输能够保持光耦合到弯曲的端子部分的各个光电器件，电子转换装置; 并且至少一个光纤的弯曲端子部分至少满足r / R <0.07 * n /（35 + n）的关系，其中n是应力腐蚀敏感性因子，r是半径光纤的包层。

7. 发明申请

US20120106891A1 METHOD AND DEVICE FOR TUNABLE OPTICAL FILTERING 审中-公开
标题翻译：用于可控光学滤波的方法和装置
公开(公告)号：US20120106891A1
公开(公告)日：2012-05-03
申请号：US13324198
申请日：2011-12-13
申请人： Luciano SOCCI , Paola Galli , Silvia Ghidini , Marco Romagnoli
发明人： Luciano SOCCI , Paola Galli , Silvia Ghidini , Marco Romagnoli
IPC分类号： G02B6/293
CPC分类号： G02B6/29343 , G02B6/12007 , G02B6/29355 , G02B6/29395 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/021
摘要： An optical device includes an optical splitter having a resonant structure including at least a resonator, the optical splitter being adapted to receive at an input port a WDM optical signal and to output at first and second output ports, respectively, a first and a second portion of the optical signal, the second portion including the channels spaced by an integer multiple of the WDM frequency spacing; an optical combiner adapted to receive at first and second input ports, respectively, the first and the second portions and adapted to output them at an output port; a first optical path optically connecting the first output port to the first input port; a second optical path optically connecting the second output port to the second input port; and an optical filter optically coupled to the second optical path, wherein the optical combiner includes at least a resonator.
摘要翻译：光学装置包括具有至少包括谐振器的谐振结构的光分路器，所述光分路器适于在输入端口处接收WDM光信号并分别在第一和第二输出端口处输出第一和第二部分所述第二部分包括以WDM频率间隔的整数倍间隔的信道; 适于在第一和第二输入端口分别接收第一和第二部分并适于在输出端口输出它们的光学合成器; 第一光路，将第一输出端口光学地连接到第一输入端口; 光学连接第二输出端口到第二输入端口的第二光路; 以及光学耦合到所述第二光路的光学滤波器，其中所述光组合器至少包括谐振器。

8. 发明申请

US20110116741A1 OPTICAL MODE TRANSFORMER, IN PARTICULAR FOR COUPLING AN OPTICAL FIBER AND A HIGH-INDEX CONTRAST WAVEGUIDE 有权
标题翻译：光学模式变压器，特别是用于耦合光纤和高指数对比波导
公开(公告)号：US20110116741A1
公开(公告)日：2011-05-19
申请号：US12919578
申请日：2008-02-29
申请人： Gaia Cevini , Paola Galli , Stefano Lorenzotti , Marco Piazza , Marco Romagnoli , Luciano Socci , Lorenzo Bolla , Silvia Ghidini
发明人： Gaia Cevini , Paola Galli , Stefano Lorenzotti , Marco Piazza , Marco Romagnoli , Luciano Socci , Lorenzo Bolla , Silvia Ghidini
IPC分类号： G02B6/30
CPC分类号： G02B6/305 , G02B6/1228
摘要： An optical mode transformer comprises a first waveguide including a first core, a first cladding and an end facet configured to be coupled to an optical fiber. The transformer further includes a second waveguide comprising a second core, a second cladding and an end directly coupled to an end of the first waveguide. A third waveguide comprises a third core and a third cladding, and is arranged with respect to the second waveguide so as to realize an evanescent optical coupling with the second waveguide. The third core includes a tapered region wherein evanescent coupling takes place, and wherein a refractive index contrast of the first waveguide is less than a refractive index contrast of the second waveguide, the refractive index contrast of the second waveguide is less than a refractive index contrast of the third waveguide, and the refractive index contrast of the third waveguide is not less than 18%.
摘要翻译：光学模式变压器包括第一波导，其包括第一芯，第一包层和被配置为耦合到光纤的端面。变压器还包括第二波导，其包括第二芯，第二包层和直接耦合到第一波导的端部的端部。第三波导包括第三芯和第三包层，并且相对于第二波导布置，以实现与第二波导的渐逝光耦合。第三芯包括其中发生ev逝耦合的锥形区域，并且其中第一波导的折射率对比度小于第二波导的折射率对比度，第二波导的折射率对比度小于折射率对比度并且第三波导的折射率对比度不小于18％。

9. 发明申请

US20050259325A1 Optical devices comprising series of birefringent waverplates 有权
标题翻译：包括一系列双折射波纹板的光学装置
公开(公告)号：US20050259325A1
公开(公告)日：2005-11-24
申请号：US10518473
申请日：2002-07-31
申请人： Silvia Ghidini , Luciano Socci , Marco Romagnoli , Pierluigi Franco
发明人： Silvia Ghidini , Luciano Socci , Marco Romagnoli , Pierluigi Franco
IPC分类号： G02F1/09 , G02B5/30 , G02B27/28
CPC分类号： G02F1/093
摘要： Bidirectional isolating devices including non-reciprocal rotators (i.e. Faraday rotators) and wavelength selective reciprocal polarization rotators are disclosed. Each wavelength selective rotator behaves like a half-wave retarder in a first frequency range and behaves like a full-wave retarder in a second frequency range, according to a substantially periodic transfer function. The rotation has a predetermined number of birefringent elements (e.g. waveplates), the thickness and the orientation of which are chosen so as to obtain a transition between the half-wave retarder behavior and the full-wave retarder behavior in a frequency range lower than or equal to 40% of the period of the transfer function. In order to satisfy such a requirement, a relatively high number of birefringent elements is required, i.e. at least the five birefringent elements. Advantageously, the isolating device may comply with any allocation scheme for the opposite propagating signals.
摘要翻译：公开了包括非互易旋转器（即法拉第旋转器）和波长选择性往复偏振旋转器的双向隔离装置。每个波长选择旋转器在第一频率范围内表现得像半波延迟器，并且根据基本上周期性的传递函数在第二频率范围内表现得像全波延迟器。旋转具有预定数量的双折射元件（例如波片），其厚度和取向被选择为在半波延迟器行为和全波延迟器行为之间的转变在低于或等于等于传递函数的40％。为了满足这种要求，需要相对高数量的双折射元件，即至少五个双折射元件。有利地，隔离装置可以符合相反传播信号的任何分配方案。

10. 发明申请

US20050226561A1 Device for bending an optical beam, in particular in an optical integrated circuit 有权
标题翻译：用于弯曲光束的装置，特别是在光学集成电路中
公开(公告)号：US20050226561A1
公开(公告)日：2005-10-13
申请号：US10506542
申请日：2002-03-06
申请人： Marco Romagnoli , Maurizio Tormen , Camilla Bonati
发明人： Marco Romagnoli , Maurizio Tormen , Camilla Bonati
IPC分类号： G02B6/12 , G02B1/02 , G02B6/122 , G02B6/125 , G02B6/26
CPC分类号： B82Y20/00 , G02B6/1225 , G02B6/125 , G02B2006/12104
摘要： A device for varying the direction of an optical beam. A first waveguide is directed along a first direction, a second waveguide is directed along a second direction different from the first direction, and a bending region is interposed between the first and the second waveguide. The bending region has a photonic crystal having a regular periodicity and at least a first and a second crystal axes substantially aligned with the first and second directions, and a reflecting surface delimiting the photonic crystal and so positioned and oriented as to reflect an optical beam coming from the first waveguide toward the second waveguide
摘要翻译：用于改变光束方向的装置。沿着第一方向引导第一波导，沿着与第一方向不同的第二方向引导第二波导，并且在第一和第二波导之间插入有弯曲区域。弯曲区域具有规则周期的光子晶体和至少基本上与第一和第二方向对齐的第一和第二晶轴，以及限定光子晶体的反射表面，并且定位和定向成反射来自光束的光束从第一波导到第二波导

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