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    • 2. 发明授权
    • Method and system for hitless tunable optical processing
    • 无源可调谐光学处理方法和系统
    • US08064769B2
    • 2011-11-22
    • US11922563
    • 2005-06-30
    • Paola GalliSilvia GhidiniMarco RomagnoliLuciano SocciFrancesco Tassone
    • Paola GalliSilvia GhidiniMarco RomagnoliLuciano SocciFrancesco Tassone
    • H04B10/00
    • H04J14/0212G02B6/355G02B6/356H04J14/0206H04J14/021H04J14/0213
    • 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.
    • 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。
    • 5. 发明授权
    • Method and system for tunable optical filtering
    • 可调谐光学滤波的方法和系统
    • US08923700B2
    • 2014-12-30
    • US12087064
    • 2005-12-28
    • Luciano SocciPaola GalliSilvia GhidiniMarco Romagnoli
    • Luciano SocciPaola GalliSilvia GhidiniMarco Romagnoli
    • H04J14/02G02B6/12G02B6/293
    • G02B6/12007G02B6/29343G02B6/29353H04J14/0204H04J14/0205H04J14/0206H04J14/0208H04J14/021H04J14/0212
    • 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.
    • 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。
    • 6. 发明申请
    • METHOD AND DEVICE FOR HITLESS TUNABLE OPTICAL FILTERING
    • 用于无线可控光学滤波的方法和装置
    • US20100183312A1
    • 2010-07-22
    • US12513993
    • 2006-11-09
    • Lorenzo BollaPaola GalliSilvia GhidiniGiorgio GrassoMarco RomagnoliLuciano Socci
    • Lorenzo BollaPaola GalliSilvia GhidiniGiorgio GrassoMarco RomagnoliLuciano Socci
    • H04J14/02
    • G02B6/29395G02B6/12007G02B6/29343G02B6/29383H04J14/0206H04J14/021
    • 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.
    • 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。
    • 9. 发明申请
    • METHOD AND DEVICE FOR HITLESS TUNABLE OPTICAL FILTERING
    • 用于无缝可控光学滤波的方法和装置
    • US20100196014A1
    • 2010-08-05
    • US12513818
    • 2006-11-09
    • Lorenzo BollaPaola GalliSilvia GhidiniMarco RomagnoliLuciano Socci
    • Lorenzo BollaPaola GalliSilvia GhidiniMarco RomagnoliLuciano Socci
    • H04B10/12G02B6/26
    • G02B6/29395G02B6/12007G02B6/29343G02B6/29383H04J14/0206H04J14/021H04J14/0212
    • 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.
    • 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。
    • 10. 发明申请
    • Method and System for Tunable Optical Filtering
    • 可调光滤波方法与系统
    • US20090273842A1
    • 2009-11-05
    • US12087064
    • 2005-12-28
    • Luciano SocciPaola GalliSilvia GhidiniMarco Romagnoli
    • Luciano SocciPaola GalliSilvia GhidiniMarco Romagnoli
    • G02B27/00
    • G02B6/12007G02B6/29343G02B6/29353H04J14/0204H04J14/0205H04J14/0206H04J14/0208H04J14/021H04J14/0212
    • 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.
    • 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。