公开(公告)号：US5355250A

公开(公告)日：1994-10-11

申请号：US84770

申请日：1993-06-29

申请人： Giorgio Grasso ,  Aldo Righetti ,  Mario Tamburello

发明人： Giorgio Grasso ,  Aldo Righetti ,  Mario Tamburello

IPC分类号： G02F1/35 ,  H01S3/00 ,  H01S3/06 ,  H01S3/07 ,  H01S3/094 ,  H04B10/08 ,  H04B10/16 ,  H04B10/17 ,  H01S3/10 ,  H01J5/16 ,  H04B9/00

CPC分类号： H04B10/2931 ,  H04B10/077 ,  H04B10/07955

摘要： The telecommunication line comprises at least one terminal station having an optical-signal transmitter and an optical-signal receiver, which are operationally connected by an automatic protection device suitable for shutting down said transmitter in the absence of a received optical signal, at least one opticalfibre line for the transmission of the optical signals transmitted by said transmitter and received by said receiver, and at least one optical amplifier included in said line. With said optical amplifier there are associated means for the detection of the presence of light energy at input and means for causing the shut down of the amplifier, which in the absence of light energy at input are caused by said detection means to interrupt substantially any emission of light energy on the part of said optical amplifier.

摘要翻译： 电信线路包括至少一个具有光信号发射机和光信号接收机的终端站，该终端站由适用于在没有接收到的光信号的情况下关闭所述发射机的自动保护装置可操作地连接至少一个光纤 用于由所述发射机发送并由所述接收机接收的光信号的传输线，以及包括在所述线路中的至少一个光放大器。 对于所述光放大器，存在用于检测输入处的光能的存在的相关装置和用于引起放大器关闭的装置，在放大器的输入不存在光能的情况下，由所述检测装置基本上中断任何发射 的所述光放大器的一部分上的光能。

公开(公告)号：US06288810B1

公开(公告)日：2001-09-11

申请号：US09202270

申请日：1999-05-07

申请人： Giorgio Grasso ,  Fausto Meli ,  Marcos Antonio Brandão Sanches ,  Mario Tamburello

发明人： Giorgio Grasso ,  Fausto Meli ,  Marcos Antonio Brandão Sanches ,  Mario Tamburello

IPC分类号： H04J1402

CPC分类号： H04J14/0209 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0216 ,  H04J14/0221

摘要： A multi-channel optical telecommunication system and method for transmitting optical signals having distinct wavelengths. Spectral selection is provided for the optical signals to add or drop signals of predetermined wavelengths. The signals are divided into at least two series of different wavelengths. The signals of each series are dropped or signals of corresponding wavelengths are added, and the signals are then combined.

摘要翻译： 一种用于发送具有不同波长的光信号的多声道光通信系统和方法。 为光信号提供光谱选择以添加或丢弃预定波长的信号。 信号被分成至少两个不同波长的系列。 每个系列的信号被丢弃或相应波长的信号相加，然后信号被组合。

公开(公告)号：US5278686A

公开(公告)日：1994-01-11

申请号：US846276

申请日：1992-03-02

申请人： Giorgio Grasso ,  Aldo Righetti ,  Mario Tamburello

发明人： Giorgio Grasso ,  Aldo Righetti ,  Mario Tamburello

IPC分类号： G02F1/35 ,  H04B10/08 ,  H04B10/16 ,  H04B10/17 ,  H01S3/00

CPC分类号： H04B10/291 ,  H04B10/077 ,  H04B10/07955

摘要： An optical fiber telecommunications system having two terminals interconnected by optical fibers and active-fiber optical amplifiers. Each terminal has an optical telecommunication signal transmitter associated with an optical signal receiver which are interconnected by a protective device which causes the transmitter to be inoperative when its associated receiver does not receive an optical signal. Optical switches are provided at the downstream sides of active-fiber optical amplifiers and are controlled by detecting devices coupled to amplifier outputs, each of which detecting devices opens the associated switch in the absence of a signal having the characteristics, e.g. an alternating component, of the optical telecommunication signal whereby the protective devices are operated.

摘要翻译： 具有通过光纤和有源光纤光放大器互连的两个端子的光纤通信系统。 每个终端具有与光信号接收器相关联的光通信信号发射器，其通过保护装置互连，当其相关接收机没有接收到光信号时，该保护装置使得发射机不起作用。 光开关设置在有源光纤光放大器的下游侧，并通过耦合到放大器输出的检测装置进行控制，每个检测装置在没有具有特性的信号的情况下打开关联的开关。 光通信信号的交替分量，由此保护装置被操作。

公开(公告)号：US06437888B1

公开(公告)日：2002-08-20

申请号：US09900185

申请日：2001-07-09

申请人： Giorgio Grasso ,  Fausto Meli ,  Marcos Antonio Brandão Sanches ,  Mario Tamburello

发明人： Giorgio Grasso ,  Fausto Meli ,  Marcos Antonio Brandão Sanches ,  Mario Tamburello

IPC分类号： H04J1402

CPC分类号： H04J14/0209 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0216 ,  H04J14/0221

摘要： Device for adding/dropping optical signals into/from an optical transmission path, including input means for at least two optical signals with distinct wavelengths, comprising spectral selection means for sending at least a first signal to a first optical path and at least a second signal to a second optical path, at least a wavelength selective switching means along at least one of said first and second optical paths, for adding and dropping at least one optical signal having a predetermined wavelength selected from the optical signal wavelengths.

摘要翻译： 用于将光信号添加到/从光传输路径中的装置，包括用于具有不同波长的至少两个光信号的输入装置，包括用于将至少第一信号发送到第一光路和至少第二信号的光谱选择装置 至少沿着所述第一和第二光路中的至少一个的波长选择性切换装置，用于添加和丢弃具有从光信号波长选择的预定波长的至少一个光信号。

公开(公告)号：US5267073A

公开(公告)日：1993-11-30

申请号：US957623

申请日：1992-10-06

申请人： Mario Tamburello ,  Giorgio Grasso

发明人： Mario Tamburello ,  Giorgio Grasso

IPC分类号： H04B10/29 ,  H04B10/16 ,  H04B10/00

CPC分类号： H04B10/29

摘要： Adapters for interconnecting optical fiber lines, including optical amplifiers, with optical transmitters and receivers in which the operating parameters of the optical amplifiers are different from the operating parameters of the transmitters and receivers. The adapters convert the optical signals from a transmitter to those within the operating parameters of the optical amplifier and convert the optical signals from an optical amplifier to those within the operating parameters of the receiver. The adapter receiving the optical signals from the transmitter also has provision for inserting service signals and the adapter receiving signals from an optical amplifier has provision for separating the optical signals from the service signals. Also, switching devices for changing transmitters and/or receivers or lines in the event of component failures.

摘要翻译： 用于将光纤线路（包括光放大器）与光发射机和接收机互连的适配器，其中光放大器的操作参数与发射机和接收机的操作参数不同。 适配器将来自发射机的光信号转换成光放大器的工作参数内的光信号，并将来自光放大器的光信号转换成接收机工作参数内的信号。 接收来自发射机的光信号的适配器还具有用于插入业务信号的规定，并且来自光放大器的适配器接收信号具有将光信号与业务信号分离的条件。 而且，在组件故障的情况下，用于改变发射器和/或接收器或线路的开关装置。

公开(公告)号：US5113459A

公开(公告)日：1992-05-12

申请号：US647141

申请日：1991-01-29

申请人： Giorgio Grasso ,  Mario Tamburello

发明人： Giorgio Grasso ,  Mario Tamburello

IPC分类号： H04J14/00 ,  H04B10/00 ,  H04J14/02

CPC分类号： H04B10/291 ,  H04B10/0777 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/028 ,  H04B2210/078

摘要： An optical fiber transmission line which includes units for injecting into, and units for extracting, optical service signals from the line's optical fiber. The units include optical service signal emitters and receivers for receiving from the optical line and/or injecting into the optical line service signals in the form of optical signals having a wavelength which is substantially different from the wavelength of the telecommunication signals also transmitted over the optical line, each of the units is associated with an optical coupler which is inserted in the line and which is suitable for coupling it with the line fiber and/or for extracting the optical service signals from the line fiber.

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：US20090204805A1

公开(公告)日：2009-08-13

申请号：US11664967

申请日：2004-10-15

申请人： Mauro Robba ,  Claudio Zammarchi ,  Giorgio Grasso

发明人： Mauro Robba ,  Claudio Zammarchi ,  Giorgio Grasso

IPC分类号： H04L9/00

CPC分类号： H04L63/0485 ,  H04W12/02

摘要： In a telecommunication network, a modular expandable gateway connects a local area network to a wide area network and includes a base module and a plurality of add-on modules arranged in one or more stacks, the base module and the add-modules including respective encryption/decryption engines to exchange secure information with each other, thus frustrating any possible fraudulent interception of the information at the module interconnections.

摘要翻译： 在电信网络中，模块化可扩展网关将局域网连接到广域网，并且包括基本模块和布置在一个或多个堆叠中的多个附加模块，基本模块和附加模块包括相应的加密 /解密引擎以彼此交换安全信息，从而使得在模块互连处的任何可能的欺诈性拦截信息受到挫败。

公开(公告)号：US07526157B2

公开(公告)日：2009-04-28

申请号：US11791611

申请日：2004-12-06

申请人： Roberto Aldeghi ,  Pierluigi Franco ,  Giorgio Grasso ,  Marco Romagnoli ,  Francesco Tassone

发明人： Roberto Aldeghi ,  Pierluigi Franco ,  Giorgio Grasso ,  Marco Romagnoli ,  Francesco Tassone

IPC分类号： G02B6/26 ,  G02B6/42

CPC分类号： G02B6/2852 ,  G02B6/4203 ,  G02B6/4206 ,  G02B6/4246

摘要： Point-to-point link for the transmission of digital signals includes two opto-electronic conversion apparatuses and an optical cable including at least one optical fiber having two terminal portions, each opto-electronic conversion apparatus including an opto-electronic device optically coupled to a respective terminal portion between the two terminal portions of the at least one optical fiber, wherein at least one of the two opto-electronic conversion apparatuses is adapted to keep the respective terminal portion of the optical fiber in bent position with a bending radius R, where 1.5 mm≦R≦2.5 mm, and to keep the respective opto-electronic device optically coupled to the bent terminal portion in order to allow the transmission of the digital signals between the optical fiber and the at least one of the two opto-electronic conversion apparatuses; and at least the bent terminal portion of the at least one optical fiber is such as to satisfy the following relationship r/R

摘要翻译： 用于传输数字信号的点对点链路包括两个光电转换装置和包括至少一个具有两个端子部分的光纤的光缆，每个光电转换装置包括光耦合到 所述至少一个光纤的两个端子部分之间的相应端子部分，其中两个光电转换装置中的至少一个适于将光纤的相应端子部分保持在弯曲半径R的弯曲位置，其中 为了使光纤和两个光电耦合器件中的至少一个之间的数字信号的传输能够保持光耦合到弯曲的端子部分的各个光电器件， 电子转换装置; 并且至少一个光纤的弯曲端子部分至少满足r / R <0.07 * n /（35 + n）的关系，其中n是应力腐蚀敏感性因子，r是半径 光纤的包层。

公开(公告)号：US5245467A

公开(公告)日：1993-09-14

申请号：US891680

申请日：1992-05-28

申请人： Giorgio Grasso ,  Aldo Righetti ,  Flavio Fontana

发明人： Giorgio Grasso ,  Aldo Righetti ,  Flavio Fontana

IPC分类号： H01S3/067 ,  H01S3/094 ,  H01S3/16 ,  H01S3/17

CPC分类号： H01S3/06708 ,  H01S3/06754 ,  H01S3/17 ,  H01S2301/04 ,  H01S3/094011 ,  H01S3/1693 ,  H01S3/1698

摘要： An optical fiber and an optical amplifier, in particular for optical fiber telecommunication lines operating with a transmission signal in a predetermined wavelength range. The amplifier comprises laser emitting active optical fiber doped with erbium and a further doping substance, distributed along the fiber. The further doping substance has an absorption for a light having a wavelength lower than 1,540 nm substantially higher than the absorption that the further doping substance shows for a light having a wavelength varying from 1,540 nm to the upper limit of the predetermined wavelength range of the transmission signal. Preferably, the further doping substance is samarium. Samarium contained in the fiber is capable of absorbing the spontaneous erbium emission, which would constitute a noise source, thereby allowing a communication signal to be amplified in a wavelength range corresponding substantially to the tolerance range of the commercially available laser light emitters used as the communication signal source.

摘要翻译： 光纤和光放大器，特别是用于以预定波长范围的传输信号工作的光纤通信线路。 放大器包括掺杂有铒的激光发射有源光纤和沿着光纤分布的另外的掺杂物质。 进一步的掺杂物质对于波长低于1540nm的光的吸收，其显着高于进一步的掺杂物质对于具有从1540nm变化到传输的预定波长范围的上限的光的显示的吸收， 信号。 优选地，另外的掺杂物质是钐。 包含在纤维中的钐能够吸收构成噪声源的自发铒发射，从而允许通信信号在基本上对应于用作通信的市售激光发射器的公差范围内的波长范围内被放大 信号源。