公开(公告)号：US6018404A

公开(公告)日：2000-01-25

申请号：US234830

申请日：1999-01-21

申请人： Fausto Meli ,  Alessandro Cavaciuti

发明人： Fausto Meli ,  Alessandro Cavaciuti

IPC分类号： H01S3/07 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  H01S3/16 ,  H01S3/17 ,  H04B10/02 ,  H04B10/17 ,  H04B10/18 ,  H04B10/24 ,  H04J14/02

CPC分类号： H04B10/2971 ,  H01S3/06754 ,  H01S3/06787 ,  H01S3/1608

摘要： A bidirectional optical amplifier, comprising a unidirectional optical amplifying unit having one amplification wavelength band; two input/output ports for at least two optical signals having opposite propagation directions, the signals having a first and a second wavelength respectively, which are distinct from each other and included in the amplification wavelength band; two first and two second wavelength-selective optical couplers, respectively having a first wavelength pass-band including said first wavelength and a second wavelength pass-band including said second wavelength, the first and second wavelength pass-bands being non-overlapping, wherein the amplifying unit is connected between two opposite nodes of an optical bridge circuit, and wherein at the nodes of said bridge circuit the first and second selective optical couplers are present and are disposed symmetrically with respect to the amplifying unit and to the input/output ports of the optical signals.

摘要翻译： 一种双向光放大器，包括具有一个放大波段的单向光放大单元; 用于至少两个具有相反传播方向的光信号的两个输入/输出端口，所述信号分别具有第一和第二波长，它们彼此不同并包括在放大波长带中; 分别具有包括所述第一波长的第一波长通带和包括所述第二波长的第二波长通带的第一和第二波长选择性光耦合器，所述第一和第二波长通带不重叠，其中， 放大单元连接在光桥电路的两个相对节点之间，并且其中在所述桥接电路的节点处存在第一和第二选择性光耦合器，并且相对于放大单元和输入/输出端口对称地设置 光信号。

公开(公告)号：US5995259A

公开(公告)日：1999-11-30

申请号：US585476

申请日：1996-01-16

申请人： Fausto Meli ,  Alessandro Cavaciuti

发明人： Fausto Meli ,  Alessandro Cavaciuti

IPC分类号： H01S3/07 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  H01S3/16 ,  H01S3/17 ,  H04B10/02 ,  H04B10/17 ,  H04B10/18 ,  H04B10/24 ,  H04J14/02

CPC分类号： H04B10/2971 ,  H01S3/06754 ,  H01S3/06787 ,  H01S3/1608

摘要： A bidirectional optical amplifier, comprising a unidirectional optical amplifying unit having one amplification wavelength band; two input/output ports for at least two optical signals having opposite propagation directions, said signals having a first and a second wavelength respectively, which are distinct from each other and included in said amplification wavelength band; two first and two second wavelength-selective optical couplers, having a first wavelength pass-band including said first wavelength and a second wavelength pass-band including said second wavelength respectively, said first and second wavelength pass-bands being devoid of relative overlappings, wherein said amplifying unit is connected between two opposite nodes of an optical bridge circuit, and wherein at the nodes of said bridge circuit said first and second selective optical couplers are present, in which said first and second selective couplers are disposed symmetrically to said amplifying unit and to said input/output ports of said optical signals.

摘要翻译： 一种双向光放大器，包括具有一个放大波段的单向光放大单元; 用于具有相反传播方向的至少两个光信号的两个输入/输出端口，所述信号分别具有彼此不同并包含在所述放大波长带中的第一和第二波长; 具有包括所述第一波长的第一波长通带和包括所述第二波长的第二波长通带的两个第一和第二波长选择性光耦合器，所述第一和第二波长通带没有相对重叠，其中 所述放大单元连接在光桥电路的两个相对的节点之间，并且其中在所述桥接电路的节点处存在所述第一和第二选择性光耦合器，其中所述第一和第二选择耦合器对称地布置到所述放大单元， 到所述光信号的所述输入/输出端口。

公开(公告)号：US07809268B2

公开(公告)日：2010-10-05

申请号：US11276742

申请日：2006-03-13

申请人： Fausto Meli ,  Gabriele Maria Galimberti

发明人： Fausto Meli ,  Gabriele Maria Galimberti

IPC分类号： H04J14/02

CPC分类号： H04J14/0227 ,  H04J14/0246 ,  H04J14/0284 ,  H04L9/0852

摘要： A method for integrating an Optical Service Channel (OSC) with a Quantum Key Distribution (QKD) channel across a DWDM network having a single mode optical fiber is provided. An optical signal is received. An OSC is coupled with the optical signal. A QKD channel is integrated with the OSC on the single mode optical fiber.

摘要翻译： 提供了一种用于在具有单模光纤的DWDM网络上集成光学服务信道（OSC）与量子密钥分发（QKD）信道的方法。 接收光信号。 OSC与光信号耦合。 QKD通道与单模光纤上的OSC集成。

公开(公告)号：US07692850B1

公开(公告)日：2010-04-06

申请号：US12400470

申请日：2009-03-09

申请人： Fausto Meli ,  Rosanna Pastorelli ,  Roberta Castagnetti

发明人： Fausto Meli ,  Rosanna Pastorelli ,  Roberta Castagnetti

IPC分类号： H04B10/17 ,  H04B10/12

CPC分类号： H04B10/2916 ,  H01S3/06758 ,  H01S3/06766 ,  H01S3/0677 ,  H01S3/094015 ,  H01S3/094096 ,  H01S3/302 ,  H01S2301/04

摘要： Improved lumped Raman amplification systems are disclosed. A lumped Raman amplification structure provides optimized efficiency, low noise figure over a range of gain settings, and a high saturation threshold. Responsibility for amplifying different portions of the spectrum is divided among multiple stages. In one particular implementation, two outer stages amplify a first band and two inner stages amplify a second band. The two inner stages also apply a small amount of amplification to the first band. A modification improves noise figure in the second band by adding some amplification in the second band to the first stage.

摘要翻译： 公开了改进的集总拉曼放大系统。 集中拉曼放大结构提供优化的效率，在一定范围的增益设置下的低噪声系数和高饱和阈值。 放大光谱不同部分的责任分为多个阶段。 在一个具体实现中，两个外部级放大第一频带，两个内部级放大第二频带。 两个内部阶段也对第一个波段施加少量的放大。 修改通过将第二频带中的一些放大增加到第一级来改善第二频带中的噪声系数。

公开(公告)号：US07359634B1

公开(公告)日：2008-04-15

申请号：US10632993

申请日：2003-08-01

申请人： Fausto Meli

发明人： Fausto Meli

IPC分类号： H04B10/12

CPC分类号： H04B10/077

摘要： Optical connection verification schemes that do not cause electromagnetic interference. An all-optical connection verification scheme exploits optical coding based on a standard color scale such as RGB (red, green, blue). An RGB LED source is used to launch a three-color optical signal where the relative (or absolute) magnitudes of the color components identify the connection. On the receiver end, an RGB photodiode measures the relative (or absolute) magnitudes of the color components to verify the connection. Alternatively, one end of the connection may transmit white light with the other end reflecting back a similar three-color signal by use of a color-coded panel reflector.

摘要翻译： 不产生电磁干扰的光连接验证方案。 全光学连接验证方案利用基于诸如RGB（红色，绿色，蓝色）的标准色标的光学编码。 RGB LED光源用于发射三色光信号，其中颜色分量的相对（或绝对）幅度标识连接。 在接收器端，RGB光电二极管测量颜色分量的相对（或绝对）幅度以验证连接。 或者，连接的一端可以透射白光，另一端通过使用彩色编码的面板反射器反射类似的三色信号。

公开(公告)号：US20070212063A1

公开(公告)日：2007-09-13

申请号：US11276742

申请日：2006-03-13

申请人： Fausto Meli ,  Gabriele Galimberti

发明人： Fausto Meli ,  Gabriele Galimberti

IPC分类号： H04B10/08

CPC分类号： H04J14/0227 ,  H04J14/0246 ,  H04J14/0284 ,  H04L9/0852

摘要： A method for integrating an Optical Service Channel (OSC) with a Quantum Key Distribution (QKD) channel across a DWDM network having a single mode optical fiber is provided. An optical signal is received. An OSC is coupled with the optical signal. A QKD channel is integrated with the OSC on the single mode optical fiber.

摘要翻译： 提供了一种用于在具有单模光纤的DWDM网络上集成光学服务信道（OSC）与量子密钥分发（QKD）信道的方法。 接收光信号。 OSC与光信号耦合。 QKD通道与单模光纤上的OSC集成。

公开(公告)号：US06456406B1

公开(公告)日：2002-09-24

申请号：US09261630

申请日：1999-03-03

申请人： Fulvio Arecco ,  Fausto Meli ,  Marcos Antonio Brandao Sanches

发明人： Fulvio Arecco ,  Fausto Meli ,  Marcos Antonio Brandao Sanches

IPC分类号： H04J1402

CPC分类号： H04J14/0283 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0219 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0293 ,  H04J14/0294 ,  H04J14/0295

摘要： An optical self-healing-ring communication network is described which includes: a first optical communication line, forming a closed optical path; at least two add/drop nodes for optical signals, optically connected along the line; a second optical communication line forming a closed optical path and optically connected to the optical-signal add/drop nodes. Defined in the network are first and second mutually opposite. travel directions of the optical signals, with respect to the position of the optical-signal add/drop nodes. At least one of said nodes further comprises selection means, controlled by the optical signals, for the selective dropping of the optical signals from one of the communication lines. At least one of the optical-signal add/drop nodes further includes means for the simultaneous input of at least one optical signal in the first direction along the first communication line and in the second direction along the second communication line.

摘要翻译： 描述了一种光学自愈环通信网络，其包括：形成封闭光路的第一光通信线路; 用于光信号的至少两个加/落节点，沿着该线光学连接; 第二光通信线路形成封闭的光路并且光连接到光信号加/分节点。 在网络中定义的是第一和第二相互相反的。 相对于光信号加/减节点的位置，光信号的行进方向。 所述节点中的至少一个还包括由光信号控制的选择装置，用于从一个通信线路选择性地丢弃光信号。 至少一个光信号添加/分出节点还包括用于沿着第一通信线路沿着第一方向并沿第二通信线路沿第二方向同时输入至少一个光信号的装置。

公开(公告)号：US07035545B2

公开(公告)日：2006-04-25

申请号：US10686048

申请日：2003-10-14

申请人： Fausto Meli ,  Marcos Antonio Brandão Sanches

发明人： Fausto Meli ,  Marcos Antonio Brandão Sanches

IPC分类号： H04B10/00

CPC分类号： H04J14/0204 ,  H04B10/2503 ,  H04B10/2972 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0216

摘要： An amplifier including a first input for a first at least two input signals having mutually distinct wavelengths, a first output for a first at least two output signals, the first at least two output signals having said mutually distinct wavelengths, a first circulator including an input port coupled to the first input, an output port coupled to the first output, and an intermediate port coupled to a first end of a selective reflection circuit, and, a second circulator including an intermediate port coupled to a second end of the selective reflection circuit, an output port coupled to a first selective splitter, and an input port coupled to a second selective splitter, wherein the first selective splitter and the second selective splitter are centered about a first selected wavelength amongst the mutually distinct wavelengths.

公开(公告)号：US07006281B1

公开(公告)日：2006-02-28

申请号：US10757970

申请日：2004-01-14

申请人： Fausto Meli ,  Roberta Castagnetti ,  Giorgio Grasso

发明人： Fausto Meli ,  Roberta Castagnetti ,  Giorgio Grasso

IPC分类号： H01S3/00

CPC分类号： H04B10/2942 ,  H04J14/0221

摘要： An amplification architecture for WDM receiver systems. The WDM channel grid is divided into groups of adjacent channels. A separate optical amplifier is provided for each channel with a single pump being shared among the channels of each group. The gain experienced by channels of a given group may be adjusted by varying the power of the group's pump. This approach allows equalization of received channel power such that all channels fall within the desired dynamic range. The amplification architecture may be implemented in a space-efficient manner at low cost.

摘要翻译： WDM接收机系统的放大架构。 WDM信道网格分为相邻信道组。 为每个通道提供单独的光放大器，每个通道的通道之间共享单个泵。 可以通过改变组的泵的功率来调整给定组的通道所获得的增益。 这种方法允许接收信道功率的均衡，使得所有信道落在所需的动态范围内。 放大架构可以以低成本的空间效率的方式来实现。

公开(公告)号：US06961522B1

公开(公告)日：2005-11-01

申请号：US09717036

申请日：2000-11-22

申请人： Roberta Castagnetti ,  Fabrizio Di Pasquale ,  Giorgio Grasso ,  Fausto Meli ,  Giovanni Sacchi

发明人： Roberta Castagnetti ,  Fabrizio Di Pasquale ,  Giorgio Grasso ,  Fausto Meli ,  Giovanni Sacchi

IPC分类号： H04B10/00 ,  H04B10/17 ,  H04J14/02

CPC分类号： H04B10/2931 ,  H04B10/2916 ,  H04J14/0221

摘要： An approach for automatic Raman gain and tilt control for a WDM (Wavelength Division Multiplexing) optical communication systems is disclosed. An optical fiber carries a plurality of optical signals, in which at least one of the optical signals are reference signals. An optical gain unit (e.g., Raman pump unit) couples to the optical fiber and adjusts the reference signals to compensate, in part, for losses associated with the optical fiber and gain tilt accumulation. Upon detecting and analyzing the reference signals, a controller controls the optical gain unit and outputs a control signal to the optical gain unit based upon the analyzed reference signals. An optical amplifier is connected to the optical fiber and amplifies the optical signals. The optical gain unit provides a nearly constant power per channel at an input of the optical amplifier. Under this approach, a Raman gain control mechanism, combined with the use of gain controlled EDFA (Erbium Doped Fiber Amplifier), allows high transmission capacity over ultra-long distances without optical regeneration and with high flexibility.

摘要翻译： 公开了一种用于WDM（波分复用）​​光通信系统的自动拉曼增益和倾斜控制的方法。 光纤携带多个光信号，其中至少一个光信号是参考信号。 光增益单元（例如，拉曼泵单元）耦合到光纤并且调整参考信号以部分地补偿与光纤相关联的损耗和增益倾斜积累。 在检测和分析参考信号时，控制器控制光学增益单元，并且基于分析的参考信号向光学增益单元输出控制信号。 光放大器连接到光纤并放大光信号。 光学增益单元在光放大器的输入处提供每通道几乎恒定的功率。 在这种方法下，拉曼增益控制机制与增益控制EDFA（掺铒光纤放大器）结合使用，可实现超长距离的高传输容量，无需光学再生和高灵活性。