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1. 发明申请

WO2008055527A1 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：WO2008055527A1
公开(公告)日：2008-05-15
申请号：PCT/EP2006/010722
申请日：2006-11-09
申请人： PIRELLI & C. S.P.A. , BOLLA, Lorenzo , GALLI, Paola , GHIDINI, Silvia , GRASSO, Giorgio , ROMAGNOLI, Marco , SOCCI, Luciano
发明人： BOLLA, Lorenzo , GALLI, Paola , GHIDINI, Silvia , GRASSO, Giorgio , ROMAGNOLI, Marco , SOCCI, Luciano
IPC分类号： H04J14/02 , G02B6/34
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。

2. 发明申请

WO2009106139A1 OPTICAL MODE TRANSFORMER, IN PARTICULAR FOR COUPLING AN OPTICAL FIBER AND A HIGH-INDEX CONTRAST WAVEGUIDE 审中-公开
标题翻译：光学模式变压器，特别是耦合光纤和高指数对比波导
公开(公告)号：WO2009106139A1
公开(公告)日：2009-09-03
申请号：PCT/EP2008/052494
申请日：2008-02-29
申请人： PIRELLI & C. S.P.A. , SOCCI, Luciano , BOLLA, Lorenzo , ROMAGNOLI, Marco , GALLI, Paola , GHIDINI, Silvia
发明人： SOCCI, Luciano , BOLLA, Lorenzo , ROMAGNOLI, Marco , GALLI, Paola , GHIDINI, Silvia
IPC分类号： G02B6/122 , G02B6/30
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 (Δn 1 ); 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 (Δn 2 ). 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 (T 2 ) of said second waveguide (2a) is comprised between 120 nm and 180 nm and the second refractive index contrast ?n 2is greater than 40%, or the thickness (T 2 ) of said second waveguide (2a) is comprised 100 nm and 400 nm and the second refractive index contrast Δn 2 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（Δn1）; 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（Δn2）。另外，第二芯体（2）包括锥形区域（13,13），其中至少一部分发生所述ev逝耦合。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Δn2大于40％，或者所述第二波导（2a）的厚度（T2）包括100 nm和400nm，第二折射率对比度Δn2在18％和30％之间。第一折射率对比度小于第二折射率对比度。

3. 发明申请

WO2008055529A1 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：WO2008055529A1
公开(公告)日：2008-05-15
申请号：PCT/EP2006/010732
申请日：2006-11-09
申请人： PIRELLI & C. S.P.A. , BOLLA, Lorenzo , GALLI, Paola , GHIDINI, Silvia , ROMAGNOLI, Marco , SOCCI, Luciano
发明人： BOLLA, Lorenzo , GALLI, Paola , GHIDINI, Silvia , ROMAGNOLI, Marco , SOCCI, Luciano
IPC分类号： H04J14/02 , G02B6/34
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千兆赫; 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。

4. 发明申请

WO2009106140A1 OPTICAL MODE TRANSFORMER, IN PARTICULAR FOR COUPLING AN OPTICAL FIBER AND A HIGH-INDEX CONTRAST WAVEGUIDE 审中-公开
标题翻译：光学模式变压器，特别是耦合光纤和高指数对比波导
公开(公告)号：WO2009106140A1
公开(公告)日：2009-09-03
申请号：PCT/EP2008/052495
申请日：2008-02-29
申请人： PIRELLI & C. S.P.A. , CEVINI, Gaia , GALLI, Paola , LORENZOTTI, Stefano , PIAZZA, Marco , ROMAGNOLI, Marco , SOCCI, Luciano , BOLLA, Lorenzo , GHIDINI, Silvia
发明人： CEVINI, Gaia , GALLI, Paola , LORENZOTTI, Stefano , PIAZZA, Marco , ROMAGNOLI, Marco , SOCCI, Luciano , BOLLA, Lorenzo , GHIDINI, Silvia
IPC分类号： G02B6/30 , G02B6/122
CPC分类号： G02B6/305 , G02B6/1228
摘要： It is disclosed a semiconductor-based optical mode transformer (100, 100', 100') for coupling an optical mode of an optical fiber (3f) with an optical mode of a waveguide (3a), the optical mode transformer comprising a first waveguide (1 a) extending along a first main longitudinal direction (Z) and including an end facet (30) being apt to be coupled to the optical fiber (3f), the first waveguide (1 a) including a first core (1 ) and a first cladding (6,4) and having a first refractive index contrast (An 1 ). The transformer further includes a second waveguide (2a) comprising a second core (2) and a second cladding (6,4) and having a second refractive index contrast (Δn 2 ), an end (9) of the second waveguide being directly coupled to and end (31 ) of the first waveguide (1 a); and a third waveguide (3a) being arranged with respect to the second waveguide so as to realize an evanescent optical coupling with the second waveguide (2a), the third waveguide (3a) comprising a third core (3) and a third cladding (4,7) and having a third refractive index contrast (Δn 3 ). The third core (3) includes a tapered region (13,13') wherein evanescent coupling takes place, and wherein the refractive index contrast of said first waveguide (1 a) is lower than the refractive index contrast of said second waveguide (2a), the refractive index contrast of said second waveguide is lower than the refractive index contrast of said third waveguide, and the refractive index contrast (Δn 3 ) of the third waveguide is not smaller than 18%.
摘要翻译：公开了一种用于将光纤（3f）的光学模式与波导（3a）的光学模式耦合的基于半导体的光学模式变压器（100,100'，100'），所述光学模式变换器包括第一波导（1a）沿着第一主纵向方向（Z）延伸并且包括易于耦合到所述光纤（3f）的端面（30），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（An1）。变压器还包括第二波导（2a），其包括第二芯体（2）和第二包层（6,4），并具有第二折射率对比度（Δn2），第二波导的端部（9）直接耦合到达第一波导（1a）的端部（31）; 和相对于第二波导布置的第三波导（3a），以实现与第二波导（2a）的渐逝光耦合，第三波导（3a）包括第三芯（3）和第三包层（4），7）并具有第三折射率对比度（Δn3）。第三芯（3）包括其中发生ev逝耦合的锥形区域（13,13'），并且其中所述第一波导（1a）的折射率对比度低于所述第二波导（2a）的折射率对比度，所述第二波导的折射率对比度低于所述第三波导的折射率对比度，并且所述第三波导的折射率对比度（Δn3）不小于18％。

5. 发明申请

WO2008055528A1 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：WO2008055528A1
公开(公告)日：2008-05-15
申请号：PCT/EP2006/010723
申请日：2006-11-09
申请人： PIRELLI & C. S.P.A. , BOLLA, Lorenzo , GALLI, Paola , GHIDINI, Silvia , ROMAGNOLI, Marco , SOCCI, Luciano
发明人： BOLLA, Lorenzo , GALLI, Paola , GHIDINI, Silvia , ROMAGNOLI, Marco , SOCCI, Luciano
IPC分类号： H04J14/02 , G02B6/34
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，并且第二滤光器的至少另一个不同谐振器的相应谐振最接近所述每个谐振，第一分离大于或等于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。

6. 发明申请

WO2008129571A1 METHOD AND DEVICE.FOR TUNABLE OPTICAL FILTERING USING VERNIER EFFECT 审中-公开
标题翻译：使用VERNIER效应的可逆光学滤波的方法和装置
公开(公告)号：WO2008129571A1
公开(公告)日：2008-10-30
申请号：PCT/IT2007/000295
申请日：2007-04-20
申请人： PIRELLI & C. S.P.A. , SOCCI, Luciano , GHIDINI, Silvia , GALLI, Paola , BOLLA, Lorenzo , BOFFI, Federico
发明人： SOCCI, Luciano , GHIDINI, Silvia , GALLI, Paola , BOLLA, Lorenzo , BOFFI, Federico
IPC分类号： G02B6/12 , G02B6/34
CPC分类号： G02B6/29343 , G02B6/29395 , G02B6/29398
摘要： An optical device (200) for processing a WDM optical signal comprising a plurality of channels lying on a grid of optical frequencies equally spaced by a frequency spacing and occupying a WDM optical bandwidth, the optical device comprises: a first optical filter (450) comprising a first optical path (430) apt to receive the WDM optical signal; a first resonator (452) optically coupled adjacently with the first optical path and having a first free spectral range (FSR) which is less than or equal to the WDM optical bandwidth and exceeds the half of the WDM optical bandwidth by more than the frequency spacing; a second resonator (454) optically coupled adjacently with the first resonator and having a second FSR which is less than or equal to two thirds of the first FSR and is greater than or equal to 0.55 times the first FSR; and a second optical path (456) optically coupled with the second resonator; and a second optical filter (460) comprising a third optical path (440) optically connected to the first optical path (430); a third resonator (462) optically coupled adjacently to the third optical path and having a third FSR which differs, in absolute value, from the first FSR by more than a quarter of said frequency spacing; and a fourth optical path (466) optically coupled with the third resonator. A method for tuning a channel to be filtered is also disclosed.
摘要翻译：一种用于处理WDM光信号的光学装置（200），所述光学装置包括位于等距间隔有频率间隔并占据WDM光带宽的光频率网格上的多个通道，所述光学装置包括：第一滤光器（450），包括适于接收WDM光信号的第一光路（430）; 第一共振器（452），其与第一光路相邻地光学耦合并且具有小于或等于WDM光学带宽的第一自由光谱范围（FSR），并且超过WDM光学带宽的一半超过频率间隔 ; 与第一谐振器相邻地光耦合并具有小于或等于第一FSR的三分之二的第二FSR并且大于或等于第一FSR的0.55倍的第二谐振器（454）; 和与第二谐振器光耦合的第二光路（456）; 和包括与第一光路（430）光学连接的第三光路（440）的第二滤光器（460）。第三谐振器（462），其光学耦合到所述第三光路并且具有第三FSR，其绝对值与所述第一FSR相差超过所述频率间隔的四分之一; 以及与第三谐振器光学耦合的第四光路（466）。还公开了一种用于调谐要滤波的信道的方法。

7. 发明申请

WO2007074485A1 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：WO2007074485A1
公开(公告)日：2007-07-05
申请号：PCT/IT2005/000773
申请日：2005-12-28
申请人： PIRELLI & C. S.P.A. , SOCCI, Luciano , GALLI, Paola , GHIDINI, Silvia , ROMAGNOLI, Marco
发明人： SOCCI, Luciano , GALLI, Paola , GHIDINI, Silvia , ROMAGNOLI, Marco
IPC分类号： H04J14/02 , G02B6/34
CPC分类号： G02B6/29343 , G02B6/12007 , G02B6/29341 , G02B6/29353 , G02B6/29355 , G02B6/2938 , G02B6/29395 , G02F1/225 , G02F2001/211 , G02F2203/15 , G02F2203/585 , H04J14/0206 , H04J14/0209 , H04J14/021 , H04J14/0212
摘要： A method for filtering a WDM optical signal comprises: splitting said optical signal by way of an optical splitter (210) having an input port (212), a first output port (214), a second output port (216), wherein said optical signal is input at said input port (212) and a first portion of the optical signal is output at said first output port (214) and a second portion of said optical signal is output at the second output port (216), said first portion comprising the channels lying on a sub-grid of optical frequencies spaced by the double of the WDM frequency spacing; filtering a channel belonging to the first portion; and recombining said first portion and second filtered portion by way of an optical combiner (220) having a first input port (222), a second input port (224) and a respective output port (226; 228), wherein the filtered first portion is input at said first input port (222), the second portion is input at said second input port (224) and both the filtered first and the second portions are output at said respective output port (226; 228), wherein the optical splitter (210) and the optical combiner (220) comprise a respective resonator-loaded Mach-Zehnder Interferometer optically coupled to the respective ports (212, 214, 216, 222, 224, 226, 228) of the optical splitter and combiner (210, 220) wherein the free spectral range of the resonator (361) is equal to said frequency spacing. An optical device implementing the above method is also disclosed.
摘要翻译：一种用于滤波WDM光信号的方法包括：通过具有输入端口（212），第一输出端口（214），第二输出端口（216）的光分路器（210）来分离所述光信号，其中所述光信号在所述输入端口（212）输入，并且所述光信号的第一部分在所述第一输出端口（214）处输出，并且所述光信号的第二部分在所述第二输出端口（216）输出，所述第一部分包括位于间隔有两倍WDM频率间隔的光频率的子网格上的信道; 过滤属于第一部分的信道; 并且通过具有第一输入端口（222），第二输入端口（224）和相应的输出端口（226; 228）的光学组合器（220）将所述第一部分和第二滤波部分重组，其中滤波的第一部分在所述第一输入端口（222）处被输入，所述第二部分在所述第二输入端口（224）处被输入，并且滤波的第一和第二部分都在所述相应的输出端口（226; 228）处输出，（210）和光学组合器（220）包括光耦合到光分路器和组合器（210,210）的相应端口（212,214,216,222,224,226,228）的相应的谐振器加载的马赫 - 曾德干涉仪， 220），其中所述谐振器（361）的自由光谱范围等于所述频率间隔。还公开了实现上述方法的光学装置。

8. 发明申请

WO2007003208A1 METHOD AND SYSTEM FOR HITLESS TUNABLE OPTICAL PROCESSING 审中-公开
标题翻译：无源光学处理方法与系统
公开(公告)号：WO2007003208A1
公开(公告)日：2007-01-11
申请号：PCT/EP2005/007085
申请日：2005-06-30
申请人： PIRELLI & C. S.P.A. , GALLI, Paola , GHIDINI, Silvia , ROMAGNOLI, Marco , SOCCI, Luciano , TASSONE, Francesco
发明人： GALLI, Paola , GHIDINI, Silvia , ROMAGNOLI, Marco , SOCCI, Luciano , TASSONE, Francesco
IPC分类号： G02B6/293 , H04J14/02
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, said first and second optical path optically connecting, in parallel configuration, a first optical switch to a second optical switch, according to the following steps: directing an optical radiation comprising at least a first 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 said optical radiation; synchronously actuating the first and the second optical switch so as to switch said optical radiation from the first optical path to the second optical path.
摘要翻译：一种用于从光学耦合到光学处理装置的第一光学路径切换到第二光路的方法，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：将包括至少第一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，以便将所述光辐射从第一光路切换到第二光路。

9. 发明申请

WO2007073764A1 METHOD AND SYSTEM FOR TUNABLE OPTICAL FILTERING 审中-公开
标题翻译：用于可控光学滤波的方法和系统
公开(公告)号：WO2007073764A1
公开(公告)日：2007-07-05
申请号：PCT/EP2005/014093
申请日：2005-12-28
申请人： PIRELLI & C. S.P.A. , SOCCI, Luciano , GALLI, Paola , GHIDINI, Silvia , ROMAGNOLI, Marco
发明人： SOCCI, Luciano , GALLI, Paola , GHIDINI, Silvia , ROMAGNOLI, Marco
IPC分类号： H04J14/02 , G02B6/34
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 (200) comprising an optical splitter (210) having an input port (212), a first output port (214) and a second output port (216) and being adapted to receive at said input port a WDM optical signal comprising a plurality of channels equally spaced by a frequency spacing and occupying an optical bandwidth, and wherein the optical splitter (210) is adapted to output at said first and second output port respectively a first and a second portion of said optical signal; an optical combiner (220) having a respective first (222) and second (224) input port and a respective output port (226; 228) and being adapted to combine two optical radiations, input respectively into the first and second input port, and to output them into the respective output port; a first optical path (230) optically connecting the first output port (214) of the optical splitter (210) to the first input port (222) of the optical combiner (220) and apt to propagate said first portion; a second optical path (240) optically connecting the second output port (216) of the optical splitter (210) to the second input port (224) of the optical combiner (220) and apt to propagate said second portion a first optical filter (250) optically coupled along the first optical path (230) and apt to filter a channel within said first portion propagating through the first optical path (230), and a second optical filter (260) optically coupled to the second optical path (240) and apt to filter a channel within said second portion propagating through the second optical path (240); wherein said first portion substantially comprises the channels which lie on a subgrid of optical frequencies equally spaced by the double of said frequency spacing and the free spectral range of both the first (250) and the second (260) optical filter is equal to an odd multiple of said frequency spacing and greater than half of said optical bandwidth. A method of filtering which may be implemented by the above device and advantageous uses of the above device are also disclosed.
摘要翻译：一种光学设备（200），包括具有输入端口（212），第一输出端口（214）和第二输出端口（216）的光分路器（210），并且适于在所述输入端口处接收WDM光信号，所述WDM光信号包括多个通道以等间隔的频率间隔并占据光学带宽，并且其中所述光分路器（210）适于在所述第一和第二输出端口分别输出所述光信号的第一和第二部分; 具有相应的第一（222）和第二（224）输入端口的光组合器（220）和相应的输出端口（226; 228），并且适于组合两个光辐射，分别输入到第一和第二输入端口，以及将其输出到相应的输出端口; 光隔离器（210）的第一输出端口（214）与光组合器（220）的第一输入端口（222）光学连接并且易于传播所述第一部分的第一光路（230）第二光路（240）将光分路器（210）的第二输出端口（216）光学地连接到光组合器（220）的第二输入端口（224）并且适于将所述第二部分传播到第一光学滤波器 250），其沿着所述第一光路（230）光学耦合并且易于对通过所述第一光路（230）传播的所述第一部分内的通道进行滤波;以及光学耦合到所述第二光路（240）的第二滤光器（260）并且易于过滤通过第二光路（240）传播的所述第二部分内的通道; 其中所述第一部分基本上包括位于等距间隔所述频率间隔的两倍的光频率的子格栅上的通道，并且第一（250）和第二（260）滤光器两者的自由光谱范围等于奇数所述频率间隔的倍数大于所述光学带宽的一半。还公开了可以通过上述装置实现的滤波方法和上述装置的有利用途。

10. 发明申请

WO2007073763A1 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：WO2007073763A1
公开(公告)日：2007-07-05
申请号：PCT/EP2005/014092
申请日：2005-12-28
申请人： PIRELLI & C. S.P.A. , SOCCI, Luciano , GALLI, Paola , GHIDINI, Silvia , ROMAGNOLI, Marco
发明人： SOCCI, Luciano , GALLI, Paola , GHIDINI, Silvia , ROMAGNOLI, Marco
IPC分类号： G02B6/34 , 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 (200) comprising an optical splitter (210) having an input port (212), a first output port (214), a second output port (216) and a resonant structure (218) comprising at least a resonator, the optical splitter being adapted to receive at said input port a WDM optical signal and to output at said first (214) and second (216) output port respectively a first and a second portion of said optical signal, said second portion substantially comprising the channels lying on a sub-grid of optical frequencies spaced by an integer. multiple of the WDM frequency spacing, wherein the resonant structure (218) is apt to resonate with the optical frequencies of the second portion so that the second portion is output at the second output port by interaction with the resonant structure (218); an optical combiner (220) having a first input port (212), a second input port (224), an output port (226) and being adapted to receive at said first and second input port respectively the first and the second portion and being adapted to output them at said output port (226); a first optical path (230) optically connecting the first output port (214) of the optical splitter (210) to the first input port (222) of the optical combiner (220) so as to propagate said first portion; a second optical path (240) optically connecting the second output port (216) of the optical splitter (210) to the second input port (224) of the optical combiner (220) so as to propagate said second portion; and an optical filter (260) optically coupled to the second optical path (240) and apt to filter a channel within said second portion propagating through the second optical path (240); wherein the optical combiner (220) comprises at least one resonant structure (225, 227, 229) comprising at least a resonator and apt to resonate with the optical frequencies of the first portion so that, in operation, the first portion is output at said output port (226) by interaction with said at least one resonant structure (225, 227, 229). A method implemented by the above device is also disclosed.
摘要翻译：一种光学装置（200），包括具有输入端口（212），第一输出端口（214），第二输出端口（216）和至少包括谐振器的谐振结构（218）的光分路器（210）光分路器适于在所述输入端口处接收WDM光信号并分别在所述第一（214）和第二（216）输出端口处输出所述光信号的第一和第二部分，所述第二部分基本上包括位于在由整数间隔的光频率的子网格上。多个WDM频率间隔，其中谐振结构（218）易于与第二部分的光频率共振，使得第二部分通过与谐振结构（218）的相互作用而在第二输出端口输出; 具有第一输入端口（212），第二输入端口（224），输出端口（226）和适于在所述第一和第二输入端口分别接收第一和第二部分的光学组合器（220）适于在所述输出端口（226）输出它们; 第一光路（230）将光分路器（210）的第一输出端口（214）光学地连接到光组合器（220）的第一输入端口（222），以便传播所述第一部分; 第二光路（240）将光分路器（210）的第二输出端口（216）光学地连接到光组合器（220）的第二输入端口（224），以便传播所述第二部分; 以及光学滤波器（260），光学耦合到所述第二光路（240）并且适于对通过所述第二光路（240）传播的所述第二部分内的通道进行滤波; 其中所述光组合器（220）包括至少一个谐振结构（225,227,229），所述谐振结构至少包括谐振器并且易于与所述第一部分的光频率共振，使得在操作中，所述第一部分在所述输出端口（226）通过与所述至少一个谐振结构（225,227,229）的相互作用。还公开了由上述装置实现的方法。

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