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11. 发明申请

US20100196014A1 METHOD AND DEVICE FOR HITLESS TUNABLE OPTICAL FILTERING 有权
标题翻译：用于无缝可控光学滤波的方法和装置
公开(公告)号：US20100196014A1
公开(公告)日：2010-08-05
申请号：US12513818
申请日：2006-11-09
申请人： Lorenzo Bolla , Paola Galli , Silvia Ghidini , Marco Romagnoli , Luciano Socci
发明人： Lorenzo Bolla , Paola Galli , Silvia Ghidini , Marco Romagnoli , Luciano Socci
IPC分类号： H04B10/12 , G02B6/26
CPC分类号： G02B6/29395 , G02B6/12007 , G02B6/29343 , G02B6/29383 , H04J14/0206 , H04J14/021 , H04J14/0212
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, 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 said respective resonance of at least one resonator with respect to said respective resonance of at least another different resonator, the separation being greater than or equal to 25 GHz; c) operating the optical filter so that said 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, wherein during the procedure from step a) to step c), at least one among said respective resonance of the at least one resonator and said respective resonance of the at least another different resonator is moved also outside a frequency region spanning between, and including, the first and the second frequency band. 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等距间隔频率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，其中第一谐振器所述多个光学耦合到所述光信号，并且所述剩余谐振器与所述第一谐振器串联耦合，使得所述多个谐振器中的每一个谐振器的相应谐振落入具有小于或等于15的带宽的第一频带内 GHz; b）操作所述滤光器以便获得至少一个谐振器的所述相应谐振之间相对于至少另一个不同谐振器的所述相应谐振的间隔，所述分离大于或等于25GHz; c）操作所述滤光器，使得所述多个谐振器中的每一个的所述相应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，其中在步骤a ）到步骤c），所述至少一个谐振器的所述相应谐振器中的至少一个和所述至少另一个不同谐振器的所述相应谐振器也移动到跨越并包括第一和第二频带的频率区域之外。公开了一种用于滤波光信号的相应装置。

12. 发明申请

US20090273842A1 Method and System for Tunable Optical Filtering 有权
标题翻译：可调光滤波方法与系统
公开(公告)号：US20090273842A1
公开(公告)日：2009-11-05
申请号：US12087064
申请日：2005-12-28
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： G02B27/00
CPC分类号： G02B6/12007 , G02B6/29343 , G02B6/29353 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0208 , H04J14/021 , H04J14/0212
摘要： An optical device includes an optical splitter having an input port, a first output port and a second output port and is adapted to receive at said input port a WDM optical signal including a plurality of channels equally spaced by a frequency spacing and occupying an optical bandwidth, and wherein the optical splitter is adapted to output at the first and second output ports, respectively, a first and a second portion of the optical signal; an optical combiner having a respective first and second input ports and a respective output port; a first optical path optically connecting the first output port of the optical splitter to the first input port of the optical combiner; a second optical path optically connecting the second output port of the optical splitter to the second input port of the optical combiner, a first optical filter optically coupled along the first optical path, and a second optical filter optically coupled to the second optical path and the free spectral range of both the first and the second optical filter is equal to an odd multiple of the frequency spacing and greater than half of the optical bandwidth.
摘要翻译：光学装置包括具有输入端口，第一输出端口和第二输出端口的光分路器，并且适于在所述输入端口处接收WDM光信号，所述WDM光信号包括以频间隔等间隔并占据光带宽的多个信道并且其中所述光分路器适于在所述第一和第二输出端口处分别输出所述光信号的第一和第二部分; 具有相应的第一和第二输入端口和相应的输出端口的光学组合器; 第一光路，将光分路器的第一输出端口光学地连接到光组合器的第一输入端口; 将光分路器的第二输出端口光学地连接到光组合器的第二输入端口的第二光路，沿着第一光路光学耦合的第一光学滤光器和与第二光路光学耦合的第二光学滤光器，第一和第二滤光器的自由光谱范围等于频率间隔的奇数倍，并且大于光学带宽的一半。

13. 发明授权

US08498543B2 Dispersion tolerant optical system and method 有权
标题翻译：色散容忍光学系统及方法
公开(公告)号：US08498543B2
公开(公告)日：2013-07-30
申请号：US13296530
申请日：2011-11-15
申请人： Marco Romagnoli , Paola Galli
发明人： Marco Romagnoli , Paola Galli
IPC分类号： H04B10/04
CPC分类号： H04B10/5563 , G02F2/00 , G02F2001/212 , G02F2202/20 , H04B10/25073 , H04B10/504
摘要： An optical communication system and method of use are described. The system comprises an optical source adapted to receive a digitally encoded data signal comprising sequences of data at a data rate (B) and comprising two signal levels representing a first state and a second state of the data signal, the optical source being adapted to produce an optical signal substantially frequency modulated with frequency excursion Δν comprising a first instantaneous frequency (ν0) associated to the first state and a second instantaneous frequency (ν1) associated to the second state; an optical converter adapted to receive the substantially frequency modulated optical signal, the optical converter having an optical transfer function varying with frequency and including at least one pass band, the at least one pass band having a peak transmittance and at least a low-transmittance region.
摘要翻译：描述了光通信系统和使用方法。该系统包括适于接收数字编码的数据信号的光源，该数字信号包括数据速率（B）的数据序列，并且包括表示数据信号的第一状态和第二状态的两个信号电平，光源适于产生频率偏移Deltanu基本上频率调制的光信号包括与第一状态相关联的第一瞬时频率（nu0）和与第二状态相关联的第二瞬时频率（nu1）; 光转换器，其适于接收基本上频率调制的光信号，所述光转换器具有随着频率变化并且包括至少一个通带的光传递函数，所述至少一个通带具有峰值透射率和至少低透射率区域。

14. 发明授权

US08494317B2 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：US08494317B2
公开(公告)日：2013-07-23
申请号：US12513818
申请日：2006-11-09
申请人： Lorenzo Bolla , Paola Galli , Silvia Ghidini , Marco Romagnoli , Luciano Socci
发明人： Lorenzo Bolla , Paola Galli , Silvia Ghidini , 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 , H04J14/0212
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, 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 said respective resonance of at least one resonator with respect to said respective resonance of at least another different resonator, the separation being greater than or equal to 25 GHz; c) operating the optical filter so that said 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, wherein during the procedure from step a) to step c), at least one among said respective resonance of the at least one resonator and said respective resonance of the at least another different resonator is moved also outside a frequency region spanning between, and including, the first and the second frequency band. 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等距间隔频率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，其中第一谐振器所述多个光学耦合到所述光信号，并且所述剩余谐振器与所述第一谐振器串联耦合，使得所述多个谐振器中的每一个谐振器的相应谐振落入具有小于或等于15的带宽的第一频带内 GHz; b）操作所述滤光器以便获得至少一个谐振器的所述相应谐振之间相对于至少另一个不同谐振器的所述相应谐振的间隔，所述分离大于或等于25GHz; c）操作所述滤光器，使得所述多个谐振器中的每一个的所述相应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，其中在步骤a ）到步骤c），所述至少一个谐振器的所述相应谐振器中的至少一个和所述至少另一个不同谐振器的所述相应谐振器也移动到跨越并包括第一和第二频带的频率区域之外。公开了一种用于滤波光信号的相应装置。

15. 发明授权

US08483528B2 Optical mode transformer, in particular for coupling an optical fiber and a high-index contrast waveguide 有权
标题翻译：光模式变压器，特别是用于耦合光纤和高折射率对比度波导
公开(公告)号：US08483528B2
公开(公告)日：2013-07-09
申请号：US12919591
申请日：2008-02-29
申请人： Luciano Socci , Lorenzo Bolla , Paola Galli , Marco Romagnoli , Silvia Ghidini
发明人： Luciano Socci , Lorenzo Bolla , Paola Galli , Marco Romagnoli , Silvia Ghidini
IPC分类号： G02B6/26 , G02B6/42 , G02B6/10
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. A second waveguide comprises a second core and a second cladding, and is arranged with respect to the first waveguide so as to realize an evanescent optical coupling with the first waveguide. The second core comprises a tapered region, in at least a portion of which the evanescent coupling takes place.The first core and the second core are separated by a gap. A first refractive index contrast of the first waveguide is less than a second refractive index contrast of the second waveguide.
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。第二波导包括第二芯和第二包层，并且相对于第一波导布置，以便实现与第一波导的渐逝光耦合。第二芯包括锥形区域，其至少部分消逝耦合发生。第一个核心和第二个核心被间隙隔开。第一波导的第一折射率对比度小于第二波导的第二折射率对比度。

16. 发明授权

US08095010B2 Method and device for tunable optical filtering 有权
标题翻译：用于可调谐光学滤波的方法和装置
公开(公告)号：US08095010B2
公开(公告)日：2012-01-10
申请号：US12087063
申请日：2005-12-28
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： H04J14/02
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 an input port, a first output port, a second output port and a resonant structure including at least a resonator, the optical splitter being adapted to receive at the input port a WDM optical signal and to output at the first and second output ports, respectively, a first and a second portion of the optical signal, the second portion including the channels lying on a sub-grid of optical frequencies spaced by an integer multiple of the WDM frequency spacing; an optical combiner having a first input port, a second input port, an output port and adapted to receive at the first and second input ports, respectively, the first and the second portions and adapted to output them at said output port; a first optical path optically connecting the first output port of the optical splitter to the first input port of the optical combiner so as to propagate the first portion; a second optical path optically connecting the second output port of the optical splitter to the second input port of the optical combiner so as to propagate the second portion; and an optical filter optically coupled to the second optical path, wherein the optical combiner includes at least one resonant structure including at least a resonator.
摘要翻译：光学装置包括具有输入端口，第一输出端口，第二输出端口和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光信号并在所述第一和第二输出端口分别是所述光信号的第一和第二部分，所述第二部分包括位于与所述WDM频率间隔的整数倍间隔的光频率的子网格上的信道; 具有第一输入端口，第二输入端口，输出端口并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所述输出端口输出的光学组合器; 第一光路将光分路器的第一输出端口光学地连接到光组合器的第一输入端口，以便传播第一部分; 第二光路将光分路器的第二输出端口光学地连接到光组合器的第二输入端口，以便传播第二部分; 以及光学耦合到所述第二光路的光学滤波器，其中所述光合并器包括至少一个至少包括谐振器的谐振结构。

17. 发明授权

US08064776B2 Dispersion tolerant optical system and method 失效
标题翻译：色散容忍光学系统及方法
公开(公告)号：US08064776B2
公开(公告)日：2011-11-22
申请号：US12335991
申请日：2008-12-16
申请人： Marco Romagnoli , Paola Galli
发明人： Marco Romagnoli , Paola Galli
IPC分类号： H04B10/04
CPC分类号： H04B10/5563 , G02F2/00 , G02F2001/212 , G02F2202/20 , H04B10/25073 , H04B10/504
摘要： An optical communication system and method of use are described. The system comprises an optical source adapted to receive a digitally encoded data signal comprising sequences of data at a data rate (B) and comprising two signal levels representing a first state and a second state of the data signal, the optical source being adapted to produce an optical signal substantially frequency modulated with frequency excursion Δν comprising a first instantaneous frequency (ν0) associated to the first state and a second instantaneous frequency (ν1) associated to the second state; an optical converter adapted to receive the substantially frequency modulated optical signal, the optical converter having an optical transfer function varying with frequency and including at least one pass band, the at least one pass band having a peak transmittance and at least a low-transmittance region.
摘要翻译：描述了光通信系统和使用方法。该系统包括适于接收数字编码的数据信号的光源，该数字信号包括数据速率（B）的数据序列，并且包括表示数据信号的第一状态和第二状态的两个信号电平，光源适于产生基本上频率调制的光信号与频率偏移＆Dgr; 包括与第一状态相关联的第一瞬时频率（＆ngr; 0）和与第二状态相关联的第二瞬时频率（＆ngr; 1）光转换器，其适于接收基本上频率调制的光信号，所述光转换器具有随着频率变化并且包括至少一个通带的光传递函数，所述至少一个通带具有峰值透射率和至少低透射率区域。

18. 发明申请

US20110026880A1 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：US20110026880A1
公开(公告)日：2011-02-03
申请号：US12919591
申请日：2008-02-29
申请人： Paola Galli , Marco Romagnoli , Luciano Socci , Lorenzo Bolla , Silvia Ghidini
发明人： Paola Galli , Marco Romagnoli , Luciano Socci , Lorenzo Bolla , Silvia Ghidini
IPC分类号： G02B6/26
CPC分类号： G02B6/305 , G02B6/1228
摘要： A semiconductor-based optical mode transformer (100, 100′, 100″) is described for coupling an optical mode of an optical fiber (3) with an optical mode of a waveguide (2a). The optical mode transformer comprises a first waveguide (1a) extending along a first main longitudinal direction (Z) and including an end facet (9) being apt to be coupled to the optical fiber (3), said first waveguide (1a) including a first core (1) and a first cladding (6,4) and having a first refractive index contrast (Δn1); and a second waveguide (2a) arranged with respect to said first waveguide so as to realize an evanescent optical coupling with said first waveguide (1a), the second waveguide (2a) comprising a second core (2) and a second cladding (4,7) and having a second refractive index contrast (Δn2). In addition, the second core (2) comprises a tapered region (13,13′), in at least a portion of which said evanescent coupling takes place. The first core (1) of the first waveguide (1a) and the second core (2) of the second waveguide (2a) are separated by a gap (g). The thickness (T2) of said second waveguide (2a) is comprised between 120 nm and 180 nm and the second refractive index contrast Δn2 is greater than 40%, or the thickness (T2) of said second waveguide (2a) is comprised 100 nm and 400 nm and the second refractive index contrast Δn2 is comprised between 18% and 30%. The first refractive index contrast is smaller than the second refractive index contrast.
摘要翻译：描述了一种用于将光纤（3）的光学模式与波导（2a）的光学模式耦合的基于半导体的光学模式变压器（100,100'，100“）。光模式变压器包括沿着第一主纵向方向（Z）延伸并且包括适于耦合到光纤（3）的端面（9）的第一波导（1a），所述第一波导（1a）包括第一芯（1）和第一包层（6,4）并具有第一折射率对比度（＆Dgr; n1）; 以及相对于所述第一波导布置的第二波导（2a），以实现与所述第一波导（1a）的渐逝光耦合，所述第二波导（2a）包括第二芯（2）和第二包层（4， 7）并且具有第二折射率对比度（＆Dgr; n2）。另外，第二芯体（2）包括锥形区域（13,13'），其中至少一部分消逝耦合发生。第一波导（1a）的第一芯（1）和第二波导（2a）的第二芯（2）由间隙（g）分开。所述第二波导（2a）的厚度（T2）在120nm和180nm之间，第二折射率对比度Dgr; n2大于40％，或者包括所述第二波导（2a）的厚度（T2） 100nm和400nm，第二折射率对比度＆Dgr; n2在18％和30％之间。第一折射率对比度小于第二折射率对比度。

19. 发明申请

US20100189441A1 METHOD AND DEVICE FOR HITLESS TUNABLE OPTICAL FILTERING 审中-公开
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：US20100189441A1
公开(公告)日：2010-07-29
申请号：US12514008
申请日：2006-11-09
申请人： Lorenzo Bolla , Paola Galli , Silvia Ghidini , Marco Romagnoli , Luciano Socci
发明人： Lorenzo Bolla , Paola Galli , Silvia Ghidini , Marco Romagnoli , Luciano Socci
IPC分类号： H04J14/02
CPC分类号： G02B6/29343 , G02B6/12007 , G02B6/29353 , G02B6/29355 , G02B6/29383 , G02B6/29395 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0208 , 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 given frequency spacing and occupying an optical bandwidth, comprises: a) splitting the optical signal into a first and a second portion spatially separated, wherein the first portion comprises the channels which lie on a first sub-grid comprising a first set of the optical frequencies equally spaced by the double of the frequency spacing and the second portion substantially comprises the remaining channels; b) operating a first optical filter comprising a plurality of resonators, wherein a first resonator of the plurality is optically coupled to the first portion 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 and comprising a first channel belonging to the first portion; c) operating a second optical filter comprising a plurality of respective resonators, wherein a respective first resonator of the plurality is optically coupled to the second portion and the remaining resonators are coupled in series to the first resonator, so as to obtain a first separation between each resonance of at least one resonator of the second optical filter falling within the optical bandwidth and a respective resonance of at least another different resonator of the second optical filter nearest to said each resonance, the first separation being greater than or equal to 25 GHz; and d) recombining the first and second filtered portions. A corresponding optical 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等距间隔给定频率间隔并占据光学带宽的光频率网格上的多个信道的方法包括：a）将光信号分为空间分离的第一和第二部分，其中所述第一部分包括位于第一子网格上的通道，所述通道包括以两倍频率间隔等间隔的第一组光学频率，并且所述第二部分基本上包括剩余通道; b）操作包括多个谐振器的第一光学滤波器，其中多个第一谐振器光耦合到第一部分，并且剩余的谐振器与第一谐振器串联光学耦合，使得每个谐振器的相应谐振所述多个谐振器落入具有小于或等于15GHz的带宽的第一频带内，并且包括属于所述第一部分的第一信道; c）操作包括多个相应谐振器的第二光学滤波器，其中所述多个相应的第一谐振器被光耦合到所述第二部分，并且所述剩余谐振器与所述第一谐振器串联耦合，以便获得第一谐振器之间的第一间隔第二滤光器的至少一个谐振器的谐振落入光学带宽内，并且至少另一不同谐振器的第二滤光器的相应谐振器最接近所述每个谐振，第一分离值大于或等于25GHz; 和d）重组第一和第二过滤部分。公开了一种用于滤波光信号的相应光学装置。

20. 发明申请

US20090028567A1 Method and Device for Tunable Optical Filtering 有权
标题翻译：可调光滤波器的方法和装置
公开(公告)号：US20090028567A1
公开(公告)日：2009-01-29
申请号：US12087063
申请日：2005-12-28
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： H04J14/02
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 an input port, a first output port, a second output port and a resonant structure including at least a resonator, the optical splitter being adapted to receive at the input port a WDM optical signal and to output at the first and second output ports, respectively, a first and a second portion of the optical signal, the second portion including the channels lying on a sub-grid of optical frequencies spaced by an integer multiple of the WDM frequency spacing; an optical combiner having a first input port, a second input port, an output port and adapted to receive at the first and second input ports, respectively, the first and the second portions and adapted to output them at said output port; a first optical path optically connecting the first output port of the optical splitter to the first input port of the optical combiner so as to propagate the first portion; a second optical path optically connecting the second output port of the optical splitter to the second input port of the optical combiner so as to propagate the second portion; and an optical filter optically coupled to the second optical path, wherein the optical combiner includes at least one resonant structure including at least a resonator.
摘要翻译：光学装置包括具有输入端口，第一输出端口，第二输出端口和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光信号并在所述第一和第二输出端口分别是所述光信号的第一和第二部分，所述第二部分包括位于与所述WDM频率间隔的整数倍间隔的光频率的子网格上的信道; 具有第一输入端口，第二输入端口，输出端口并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所述输出端口输出的光学组合器; 第一光路将光分路器的第一输出端口光学地连接到光组合器的第一输入端口，以便传播第一部分; 第二光路将光分路器的第二输出端口光学地连接到光组合器的第二输入端口，以便传播第二部分; 以及光学耦合到所述第二光路的光学滤波器，其中所述光合并器包括至少一个至少包括谐振器的谐振结构。

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