专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2008078130A1 OPTICAL TRANSMISSION SYSTEM WITH OPTICAL CHROMATIC DISPERSION COMPENSATOR 审中-公开
标题翻译：具有光学色散补偿器的光传输系统
公开(公告)号：WO2008078130A1
公开(公告)日：2008-07-03
申请号：PCT/IB2006/003778
申请日：2006-12-27
申请人： PIRELLI & C. S.P.A. , BOFFI, Pierpaolo , GRASSO, Giorgio , MARAZZI, Lucia , PAROLARI, Paola , RIGHETTI, Aldo , ROMAGNOLI, Marco , TAMIRI, Giovanni
发明人： BOFFI, Pierpaolo , GRASSO, Giorgio , MARAZZI, Lucia , PAROLARI, Paola , RIGHETTI, Aldo , ROMAGNOLI, Marco , TAMIRI, Giovanni
IPC分类号： H04B10/18 , G02B6/34
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： - 在第一位置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分散鲁棒性的值; - 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 / nm 2，其中所述第一和第二位置之间的所述传递函数的平移第二个位置小于所述FSR。

2. 发明申请

WO2009071964A1 SYSTEM AND METHOD FOR COHERENT DETECTION OF OPTICAL SIGNALS 审中-公开
标题翻译：用于光信号的相关检测的系统和方法
公开(公告)号：WO2009071964A1
公开(公告)日：2009-06-11
申请号：PCT/IB2007/054948
申请日：2007-12-06
申请人： PGT PHOTONICS S.P.A. , BOFFI, Pierpaolo , MARAZZI, Lucia , MARTELLI, Paolo , PAROLARI, Paola , RIGHETTI, Aldo
发明人： BOFFI, Pierpaolo , MARAZZI, Lucia , MARTELLI, Paolo , PAROLARI, Paola , RIGHETTI, Aldo
IPC分类号： H04B10/148
CPC分类号： H04B10/6161 , H04B10/61 , H04B10/6162 , H04B10/63 , H04B10/64
摘要： An optical communication system (100; 2300) comprises at least a transmitter (110) apt to emit a differential phase shift keying (DPSK) optical signal having a bit-rate equal to R, at least a receiving system (1200) for receiving the differential phase shift keying optical signal; and an optical link (130) optically connecting the transmitter and the receiving system for transmitting the DPSK optical signal from the transmitter to the receiving system, wherein the receiving system comprises a coherent optical receiving device (1205) apt to coherently receive the propagated DPSK optical signal and to emit at least one electrical signal (I) related to the received DPSK optical signal, and wherein the receiving system further comprises at least one electrical filter (270) for filtering the at least one electrical signal and having -3dB double-side bandwidth greater than or equal to 0.44R and lower than or equal to 0.68R, and at least one squarer (280) for squaring the at least one filtered electrical signal. A related method for optical communication is also disclosed.
摘要翻译：光通信系统（100; 2300）至少包括一个适于发射具有等于R的比特率的差分相移键控（DPSK）光信号的发射机（110），至少一接收系统（1200）差分相移键控光信号; 以及光链路（130），其将所述发射机和所述接收系统光学连接，用于将所述DPSK光信号从所述发射机发射到所述接收系统，其中，所述接收系统包括相干光接收装置（1205），所述相干光接收装置适于相干地接收所传播的DPSK光信号并且发射与所接收的DPSK光信号相关的至少一个电信号（I），并且其中所述接收系统还包括用于对所述至少一个电信号进行滤波并具有-3dB双侧的至少一个电滤波器（270）带宽大于或等于0.44R且低于或等于0.68R，以及至少一平方（280）用于平坦化所述至少一个滤波后的电信号。还公开了一种用于光通信的相关方法。

3. 发明申请

WO2006045324A1 METHOD AND DEVICE FOR STABILIZING THE STATE OF POLARIZATION OF A POLARIZATION MULTIPLEXED OPTICAL RADIATION 审中-公开
标题翻译：用于稳定极化多光子辐射极化状态的方法和装置
公开(公告)号：WO2006045324A1
公开(公告)日：2006-05-04
申请号：PCT/EP2004/011957
申请日：2004-10-22
申请人： PIRELLI & C. S.P.A. , BOFFI, Pierpaolo , MARAZZI, Lucia , MARTELLI, Paolo , MARTINELLI, Mario , RIGHETTI, Aldo , SIANO, Rocco
发明人： BOFFI, Pierpaolo , MARAZZI, Lucia , MARTELLI, Paolo , MARTINELLI, Mario , RIGHETTI, Aldo , SIANO, Rocco
IPC分类号： H04J14/06
CPC分类号： H04J14/06 , G02F1/0136 , H04J14/02
摘要： A device (100) and method for stabilizing the polarization of a polarization multiplexed optical radiation comprising an identified channel which is provided with a pilot signal. The device (100) and method are based on providing to the polarization multiplexed optical radiation a controllable polarization transformation; measuring the optical power of a polarized portion of the identified channel downstream the polarization transformation; controlling, responsively to said optical power, the controllable polarization transformation so that the identified channel downstream the polarization transformation has a predefined polarization azimuth; providing to the optical radiation downstream the polarization transformation a further controllable polarization transformation; measuring the optical power of a polarized portion of the identified channel downstream the further controllable polarization transformation; controlling, responsively to said optical power, the further controllable polarization transformation so that the identified channel downstream the further controllable polarization transformation has a predefined state of polarization (SOP our).
摘要翻译：一种用于稳定偏振复用光辐射的偏振的装置（100）和方法，其包括被提供有导频信号的识别信道。设备（100）和方法基于向偏振复用光辐射提供可控偏振变换; 测量在所述偏振变换下游的所识别的通道的极化部分的光功率; 响应于所述光功率控制所述可控偏振变换，使得所述偏振变换下游的所识别的通道具有预定义的偏振方位; 向偏光变换下游的光辐射提供进一步可控的偏振变换; 测量所识别的通道的偏振部分的光功率在下游的可控偏振变换; 响应于所述光功率控制进一步可控的偏振变换，使得在进一步可控偏振变换下游的所识别的通道具有预定义的偏振态（SOP我们）。

4. 发明申请

WO2007088561A1 PASSIVE OPTICAL NETWORK COMPRISING MULTI-LONGITUDINAL MODE EMITTING DEVICES 审中-公开
标题翻译：包含多长时间模式发射设备的被动光网络
公开(公告)号：WO2007088561A1
公开(公告)日：2007-08-09
申请号：PCT/IT2006/000057
申请日：2006-02-03
申请人： PIRELLI & C. S.p.A. , GRASSO, Giorgio , IANNONE, Eugenio , RIGHETTI, Aldo
发明人： GRASSO, Giorgio , IANNONE, Eugenio , RIGHETTI, Aldo
IPC分类号： H04B10/207 , H04B10/13
CPC分类号： H04B10/2581
摘要： Mode partition noise is reduced in a short haul optical system (e.g. a passive optical network) including multi-longitudinal mode (MLM) emitting devices (e.g. Fabry-Perot lasers) by providing an equalizing element, typically an equalizing filter, being capable of obtaining an acceptable and substantially invariant penalty in a received signal originated from a MLM emitting device disposed at any distance within a given range (e.g., up to 20 km). An equalizing element designed for obtaining a performance in accordance with the above can also be capable of obtaining a penalty within acceptable reception limits even in case of use of MLM emitting devices having relatively high average RMS widths (e.g. 2.5-3.0 nm).
摘要翻译：通过提供能够获得的均衡元件（通常为均衡滤波器），在包括多纵向模式（MLM）发射装置（例如法布里 - 珀罗激光器）的短距离光学系统（例如无源光网络）中减少了模式分区噪声在来自于在给定范围内（例如，最多20km）内任意距离设置的MLM发射设备的接收信号中可接受和基本上不变的惩罚。设计用于获得根据上述性能的均衡元件也可以在使用具有相对较高的平均RMS宽度（例如2.5-3.0nm）的MLM发射装置的情况下，能够在可接受的接收限度内获得惩罚。

5. 发明申请

WO2013030720A1 A SOLAR CONCENTRATOR FOR PHOTOVOLTAIC SYSTEMS 审中-公开
标题翻译：用于光伏系统的太阳能集中器
公开(公告)号：WO2013030720A1
公开(公告)日：2013-03-07
申请号：PCT/IB2012/054241
申请日：2012-08-22
申请人： FONDAZIONE CENTRO INTERNAZIONALE DELLA FOTONICA PER ENERGIA , GRASSO, Giorgio , MORICHETTI, Francesco , PIETRALUNGA, Silvia Maria , RIGHETTI, Aldo , UBALDI, Maria Chiara
发明人： GRASSO, Giorgio , MORICHETTI, Francesco , PIETRALUNGA, Silvia Maria , RIGHETTI, Aldo , UBALDI, Maria Chiara
IPC分类号： F24J2/06 , F24J2/12 , H01L31/052
CPC分类号： H01L31/0525 , F24S23/10 , F24S23/71 , G02B19/0028 , H01L31/02327 , H01L31/054 , H01L31/0547 , Y02E10/42 , Y02E10/52
摘要： A solar concentrator (1) having a longitudinal axis of extension (3) and a cross-section at right angles to the longitudinal axis substantially equal for a continuum of right-angled cross-sections, and comprising a reflective system (6) and a refractive system (7), the reflective system forming an optical inlet (8) and an optical outlet (9) and comprising two semi-portions positioned specularly relative to the plane of symmetry, where the cross-section profile of the refractive system (7) is a triangle (11) having a base (12) at the optical outlet (9) and apex (13) on the axis of symmetry (5), where the cross-section profile of each semi-portion of the reflective system (6) comprises a segment (18) in the shape of a parabola having an axis (20) forming with the axis of symmetry an acceptance angle (θ0) greater than zero and a focus (F) on the axis of symmetry, and where the focus (F) falls inside the triangle (11).
摘要翻译：一种具有延伸部分（3）的纵向轴线的横截面和垂直于纵向轴线的横截面的太阳能集中器（1）对于连续的直角横截面基本相等，并且包括反射系统（6）和折射系统（7），反射系统形成光学入口（8）和光学出口（9），并且包括相对于对称平面镜面定位的两个半部分，其中折射系统（7）的横截面轮廓）是在光学出口（9）处具有基部（12）和对称轴线（5）上的顶点（13）的三角形（11），其中反射系统的每个半部分的横截面轮廓 6）包括具有抛物线形状的段（18），所述段（18）具有轴线（20），所述轴线（20）以对称轴线形成大于零的接受角（θ0）和对称轴上的焦点（F），并且其中焦点（F）落在三角形（11）内。

6. 发明申请

WO2006027205A1 METHOD AND DEVICE FOR STABILIZATING THE STATE OF POLARIZATION OF AN OPTICAL RADIATION 审中-公开
标题翻译：用于稳定光学偏振极化状态的方法和装置
公开(公告)号：WO2006027205A1
公开(公告)日：2006-03-16
申请号：PCT/EP2005/009549
申请日：2005-09-06
申请人： PIRELLI & C. S.P.A. , MARTINELLI, Mario , MARTELLI, Paolo , PIETRALUNGA, Silvia, Maria , RIGHETTI, Aldo
发明人： MARTINELLI, Mario , MARTELLI, Paolo , PIETRALUNGA, Silvia, Maria , RIGHETTI, Aldo
IPC分类号： H04B10/18 , G02F1/01 , G02B26/06
CPC分类号： G02B6/2793 , G02B6/2713 , G02B6/2766 , G02B27/286 , G02B27/288 , G02F1/0136 , H04J14/06
摘要： A polarization stabilizing device and method based on controlling the phase retardations ( Φ 1 , Φ 2 ) of a pair of variable rotators (VPR1, VPR2), with an optically interposed quarter-wave plate (WP1), with a controller (CTRL) such that the first of the variable rotators has its phase retardation switched between first and second values whenever the phase retardation of the second of the variable rotators reaches an upper or a lower limit. The upper and lower limits of the second rotator and the first and second values of the first rotator are chosen so that discontinuities in the power of the output optical radiation are avoided when the first variable rotator is switched, thereby providing endless polarization stabilization using rotators that themselves may have limited retardation ranges.
摘要翻译：一种基于控制相位延迟的偏振稳定装置和方法（

7. 发明申请

WO2009081237A1 METHOD AND DEVICE FOR POLARIZATION STABILIZATION OF AN OPTICAL RADIATION 审中-公开
标题翻译：用于偏光稳定的光学辐射的方法和装置
公开(公告)号：WO2009081237A1
公开(公告)日：2009-07-02
申请号：PCT/IB2007/055292
申请日：2007-12-21
申请人： PGT PHOTONICS S.P.A. , MARTELLI, Paolo , MARTINELLI, Mario , RIGHETTI, Aldo
发明人： MARTELLI, Paolo , MARTINELLI, Mario , RIGHETTI, Aldo
IPC分类号： H04J14/06 , G02F1/01 , G02B27/28
CPC分类号： H04J14/06 , G02B5/3083 , G02F1/0121 , G02F1/0136
摘要： A method of stabilizing the state of polarization of an optical radiation comprises: 1) applying sequentially to the optical radiation a first and a second controllable phase retardation; 2) detecting an optical power of at least a first polarized portion of the optical radiation obtained after step 1; 3) applying sequentially to the optical radiation obtained after step 1 a third and a fourth controllable phase retardation; 4) detecting an optical power of a further polarized portion of the optical radiation obtained after step 3; 5) controlling, responsive to the optical power of said first polarized portion, the second controllable phase retardation so as to maintain the polarization state of the optical radiation obtained after step 1 at a defined great circle r on a Poincare sphere; 6) in case the second controllable phase retardation reaches a first limit value, commuting the first controllable phase retardation between first and second values; 7) controlling, responsive to the optical power of said further polarized portion, the fourth controllable phase retardation so as to maintain the polarization state of the optical radiation obtained after step 3 at a defined state of polarization; 8) in case the fourth controllable phase retardation reaches a second limit value, commuting the third controllable phase retardation between third and fourth values, keeping constant the first controllable phase retardation while the third controllable phase retardation is commuting between said third and fourth values. A polarization stabilizing device based on the method above is also disclosed.
摘要翻译：稳定光辐射的偏振状态的方法包括：1）顺序地施加到光辐射第一和第二可控相位延迟; 2）检测在步骤1之后获得的光辐射的至少第一极化部分的光功率; 3）顺序地施加到在步骤1之后获得的光辐射，第三和第四可控相位延迟; 4）检测在步骤3之后获得的光辐射的另一极化部分的光功率; 5）响应于所述第一极化部分的光功率控制第二可控相位延迟，以便将在步骤1之后获得的光辐射的极化状态保持在庞加莱球上的限定的大圆圈r; 6）在第二可控相位延迟达到第一极限值的情况下，使第一和第二值之间的第一可控相位延迟相乘; 7）响应于所述另外的偏振部分的光焦度来控制第四可控相位延迟，以便将在步骤3之后获得的光辐射的偏振状态保持在限定的偏振状态; 8）在第四可控相位延迟达到第二极限值的情况下，使第三和第四值之间的第三可控相位延迟相交，在第三可控相位延迟在所述第三和第四值之间通勤时，保持第一可控相位延迟恒定。还公开了一种基于上述方法的偏振稳定装置。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式