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。

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％。

公开(公告)号：US08923700B2

公开(公告)日：2014-12-30

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： H04J14/02 ,  G02B6/12 ,  G02B6/293

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包括以频率间隔等间隔并且占据光带宽的多个信道的WDM光信号 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。

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。

公开(公告)号：US20080253767A1

公开(公告)日：2008-10-16

申请号：US11922563

申请日：2005-06-30

申请人： Paola Galli ,  Silvia Ghidini ,  Marco Romagnoli ,  Luciano Socci ,  Francesco Tassone

发明人： Paola Galli ,  Silvia Ghidini ,  Marco Romagnoli ,  Luciano Socci ,  Francesco Tassone

IPC分类号： H04J7/00

CPC分类号： H04J14/0212 ,  G02B6/355 ,  G02B6/356 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0213

摘要： A method for switching from a first optical path optically coupled to an optical processing device to a second optical path, the first and second optical paths optically connecting, in parallel configuration, a first optical switch to a second optical switch, according to the following steps: directing optical radiation comprising at least a fast operating wavelength through the first optical path to the optical processing device, which is tuned to the first operating wavelength; tuning a resonant all-pass filter optically coupled to the second optical path so as to match, at least at a wavelength adjacent to the first operating wavelength, a phase distortion introduced by the optical processing device on the optical radiation; synchronously actuating the first and the second optical switch so as to switch the optical radiation from the first optical path to the second optical path.

摘要翻译： 一种从光学耦合到光学处理设备的第一光学路径切换到第二光学路径的方法，所述第一和第二光学路径根据以下步骤以并联构造将第一光学开关光学地连接到第二光学开关 ：将包括至少快速工作波长的光辐射通过第一光路引导到被调谐到第一工作波长的光学处理装置; 调谐光耦合到所述第二光路的谐振全通滤波器，以便至少在与所述第一工作波长相邻的波长处匹配由所述光学处理装置在所述光辐射上引入的相位失真; 同步致动第一和第二光开关，以便将光辐射从第一光路切换到第二光路。

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。

公开(公告)号：US08320721B2

公开(公告)日：2012-11-27

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％。

公开(公告)号：US20100040382A1

公开(公告)日：2010-02-18

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

公开(公告)号：US20120057881A1

公开(公告)日：2012-03-08

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 comprisesan 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。 该系统包括光源，适于接收包含数据速率（B）的数据序列的数字编码数据信号，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 光信号基本上频率调制与频率偏移＆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 。

公开(公告)号：US08064769B2

公开(公告)日：2011-11-22

申请号：US11922563

申请日：2005-06-30

申请人： Paola Galli ,  Silvia Ghidini ,  Marco Romagnoli ,  Luciano Socci ,  Francesco Tassone

发明人： Paola Galli ,  Silvia Ghidini ,  Marco Romagnoli ,  Luciano Socci ,  Francesco Tassone

IPC分类号： H04B10/00

CPC分类号： H04J14/0212 ,  G02B6/355 ,  G02B6/356 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0213

摘要： A method for switching from a first optical path optically coupled to an optical processing device to a second optical path, the first and second optical paths optically connecting, in parallel configuration, a first optical switch to a second optical switch, according to the following steps: directing optical radiation comprising at least a fast operating wavelength through the first optical path to the optical processing device, which is tuned to the first operating wavelength; tuning a resonant all-pass filter optically coupled to the second optical path so as to match, at least at a wavelength adjacent to the first operating wavelength, a phase distortion introduced by the optical processing device on the optical radiation; synchronously actuating the first and the second optical switch so as to switch the optical radiation from the first optical path to the second optical path.

摘要翻译： 一种从光学耦合到光学处理设备的第一光学路径切换到第二光学路径的方法，所述第一和第二光学路径根据以下步骤以并联构造将第一光学开关光学地连接到第二光学开关 ：将包括至少快速工作波长的光辐射通过第一光路引导到被调谐到第一工作波长的光学处理装置; 调谐光耦合到所述第二光路的谐振全通滤波器，以便至少在与所述第一工作波长相邻的波长处匹配由所述光学处理装置在所述光辐射上引入的相位失真; 同步致动第一和第二光开关，以便将光辐射从第一光路切换到第二光路。