公开(公告)号：US08989585B2

公开(公告)日：2015-03-24

申请号：US13876954

申请日：2010-11-08

申请人： Ernesto Ciaramella ,  Antonio D'Errico

发明人： Ernesto Ciaramella ,  Antonio D'Errico

IPC分类号： H04B10/00 ,  H04B10/11 ,  H04B10/112 ,  H04J14/02

CPC分类号： H04B10/11 ,  H04B10/1125 ,  H04J14/0221

摘要： A free space optical communications link node 10 comprising transmitter apparatus 12 comprising a first optical transmitter 14, arranged to transmit high priority traffic on a first upstream optical signal having a first wavelength and at a first optical signal power, and a second optical transmitter 16 arranged to transmit low priority traffic on a second upstream optical signal having a second wavelength, different to the first wavelength, and at a second optical signal power. The node 10 further comprises receiver apparatus 18 comprising a first optical amplifier 20 arranged to receive and amplify a first downstream optical signal having a third wavelength and carrying high priority traffic and a second downstream optical signal having a fourth wavelength, different to the third wavelength, and carrying low priority traffic. The node 10 further comprises traffic handling control apparatus 22 comprises a power monitor 24 arranged to monitor an optical signal power of the first downstream optical signal and a controller 26 arranged to generate and transmit a control signal 28 if said optical signal power is below a first threshold value. The control signal is arranged to cause the second optical signal power to have a value which is unsuitable for transmission.

摘要翻译： 一种自由空间光通信链路节点10，包括：发射机装置12，包括第一光发射机14，被配置为在具有第一波长和第一光信号功率的第一上行光信号上传送高优先级业务;以及第二光发射机16， 在具有与第一波长不同的第二波长和第二光信号功率的第二上行光信号上传送低优先级业务。 节点10还包括接收机装置18，包括：第一光放大器20，被配置为接收和放大具有第三波长并承载高优先级业务的第一下行光信号，以及具有不同于第三波长的第四波长的第二下行光信号， 并承载低优先级流量。 节点10还包括业务处理控制装置22，其包括布置成监视第一下行光信号的光信号功率的功率监视器24，以及如果所述光信号功率低于第一信号功率则产生和发送控制信号28的控制器26 阈值。 控制信号被布置成使得第二光信号功率具有不适于传输的值。

公开(公告)号：US20140023377A1

公开(公告)日：2014-01-23

申请号：US13876954

申请日：2010-11-08

申请人： Ernesto Ciaramella ,  Antonio D'Errico

发明人： Ernesto Ciaramella ,  Antonio D'Errico

IPC分类号： H04B10/11 ,  H04J14/02

CPC分类号： H04B10/11 ,  H04B10/1125 ,  H04J14/0221

摘要： A free space optical communications link node 10 comprising transmitter apparatus 12 comprising a first optical transmitter 14, arranged to transmit high priority traffic on a first upstream optical signal having a first wavelength and at a first optical signal power, and a second optical transmitter 16 arranged to transmit low priority traffic on a second upstream optical signal having a second wavelength, different to the first wavelength, and at a second optical signal power. The node 10 further comprises receiver apparatus 18 comprising a first optical amplifier 20 arranged to receive and amplify a first downstream optical signal having a third wavelength and carrying high priority traffic and a second downstream optical signal having a fourth wavelength, different to the third wavelength, and carrying low priority traffic. The node 10 further comprises traffic handling control apparatus 22 comprises a power monitor 24 arranged to monitor an optical signal power of the first downstream optical signal and a controller 26 arranged to generate and transmit a control signal 28 if said optical signal power is below a first threshold value. The control signal is arranged to cause the second optical signal power to have a value which is unsuitable for transmission.

摘要翻译： 一种自由空间光通信链路节点10，包括：发射机装置12，包括第一光发射机14，被配置为在具有第一波长和第一光信号功率的第一上行光信号上传送高优先级业务;以及第二光发射机16， 在具有与第一波长不同的第二波长和第二光信号功率的第二上行光信号上传送低优先级业务。 节点10还包括接收机装置18，包括：第一光放大器20，被配置为接收和放大具有第三波长并承载高优先级业务的第一下行光信号，以及具有不同于第三波长的第四波长的第二下行光信号， 并承载低优先级流量。 节点10还包括业务处理控制装置22，其包括布置成监视第一下行光信号的光信号功率的功率监视器24和被配置为如果所述光信号功率低于第一 阈值。 控制信号被布置成使得第二光信号功率具有不适于传输的值。

公开(公告)号：US20070274732A1

公开(公告)日：2007-11-29

申请号：US10598701

申请日：2005-03-08

申请人： Antonio D'Errico ,  Ernesto Ciaramella

发明人： Antonio D'Errico ,  Ernesto Ciaramella

IPC分类号： H04B10/06

CPC分类号： H04B10/69 ,  H04B10/676

摘要： An optical modulation converter (10) for converting the modulation format of an optical input signal is characterized by a birefringent medium (14), polarization maintaining fibre, with a selected differential group delay between its two main axes of symmetry through which the optical input signal is passed to be separated into two optical components each travelling along one of the main axes of the medium at a different group velocity to thereby convert the modulation format of the input signal. By appropriate selection of the differential group delay imparted by the medium relative to the bit rate of the input signal and by appropriately presenting the input signal relative to the main axes of the medium conversion between different modulation formats can be achieved. These include direct conversion from optical DPSK (Differential Phase Shift Keying) to POLSK (POLarization Shift Keying), DPSK to IM (Intensity-Modulated) through an intermediated conversion to POLSK, POLSK to IMDD (Intensity Modulation Direct Detection), and IM to POLSK.

摘要翻译： 用于转换光输入信号的调制格式的光调制转换器（10）的特征在于双折射介质（14），保偏光纤，在其两个主对称轴之间具有选择的差分组延迟，光输入信号 通过以分离成两个光学部件，每个光学部件以不同的组速度沿着介质的主轴线行进，从而转换输入信号的调制格式。 可以通过适当地选择介质相对于输入信号的比特率而赋予的差分组延迟，并且可以通过适当地呈现相对于不同调制格式之间的介质转换的主轴的输入信号。 这些包括通过中间转换到POLSK，POLSK到IMDD（强度调制直接检测）和IM到POLSK的从光学DPSK（差分相移键控）到POLSK（偏振移位键控），DPSK到IM（强度调制）的直接转换 。

公开(公告)号：US20100329680A1

公开(公告)日：2010-12-30

申请号：US12740464

申请日：2008-04-01

申请人： Marco Presi ,  Giampiero Contestabile ,  Ernesto Ciaramella ,  Fabio Cavaliere ,  Roberto Proiettii ,  Antonio D'Errico ,  Pierpaolo Ghiggino

发明人： Marco Presi ,  Giampiero Contestabile ,  Ernesto Ciaramella ,  Fabio Cavaliere ,  Roberto Proiettii ,  Antonio D'Errico ,  Pierpaolo Ghiggino

IPC分类号： H04J14/02

CPC分类号： H04B10/2587 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0298 ,  H04J2014/0253

摘要： The invention relates to improvements in or relating to optical networks. Methods and apparatus are disclosed for providing communications services to at least one user. Transmission of an optical signal in the downstream direction is described comprising at least one Wavelength Division Multiplexing channel such that at least one of the channels is an unmodulated channel. The unmodulated channel is arranged to transmit user data from the at least one user in the upstream direction.

摘要翻译： 本发明涉及光网络的改进或涉及光网络。 公开了用于向至少一个用户提供通信服务的方法和装置。 描述了沿下游方向的光信号的传输，其包括至少一个波分复用信道，使得至少一个信道是未调制的信道。 未调制信道被布置成在上游方向上从至少一个用户传送用户数据。

公开(公告)号：US20130136447A1

公开(公告)日：2013-05-30

申请号：US13695007

申请日：2010-04-28

申请人： Fabio Cavaliere ,  Luca Giorgi ,  Antonio D'Errico ,  Renato Grosso

发明人： Fabio Cavaliere ,  Luca Giorgi ,  Antonio D'Errico ,  Renato Grosso

IPC分类号： H04J14/02

CPC分类号： H04J14/0282 ,  H04J14/0202 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0269

摘要： An optical access network comprises L wavelength division multiplexed access sub-networks. Each of the wavelength division multiplexed access sub-networks is arranged to use a set of wavelength channels. M optical line termination apparatus, each receive traffic from a respective operator network and output traffic on the wavelength channels. A wavelength routing apparatus comprises M sets of first ports and L second ports. Each set of first ports connects to a respective one of the optical line termination apparatus and each second port connects to an optical link of a respective one of the wavelength division multiplexed access sub-networks. The wavelength routing apparatus is arranged to route the set of wavelength channels between the sets of first ports and the second ports and to route different wavelength channels of the same wavelength to different ones of the second ports.

摘要翻译： 光接入网络包括L波分复用接入子网。 每个波分多路复用接入子网被配置为使用一组波长信道。 M光线路终端装置，各自从相应的运营商网络接收业务并在波长信道上输出业务。 波长路由装置包括M组第一端口和L个第二端口。 每组第一端口连接到光线路终端设备中的相应一个，并且每个第二端口连接到波分复用接入子网中相应一个的光链路。 波长路由设备被布置为在第一端口组和第二端口之间路由该组波长信道，并且将相同波长的不同波长信道路由到不同的第二端口。

公开(公告)号：US09614637B2

公开(公告)日：2017-04-04

申请号：US14404950

申请日：2012-06-08

申请人： Francesco Testa ,  Paolo Pintus ,  Fabrizio Di Pasquale ,  Antonio D'Errico

发明人： Francesco Testa ,  Paolo Pintus ,  Fabrizio Di Pasquale ,  Antonio D'Errico

IPC分类号： H04J14/00 ,  H04J14/02 ,  H04Q11/00 ,  H04J14/06

CPC分类号： H04J14/0212 ,  H04J14/0209 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/06 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0035

摘要： Optical add and drop switch and aggregator apparatus comprising: N first wavelength selective routing apparatus each configured to split a wavelength multiplexed input signal into L sub-signals; demultiplexers each configured to demultiplex a respective sub-signal into K optical signals; output ports each configured to output a respective output optical signal; add ports configured to receive optical signals to be added; M second wavelength selective routing apparatus each having X outputs, each said apparatus being configured to receive optical signals from a respective add port and to route each received optical signal to a respective one of its outputs; drop ports configured to output optical signals to be dropped; and a switch matrix coupled between the demultiplexers, the output ports, the drop ports and the second wavelength selective routing apparatus, the switch matrix comprising a plurality of optical switches arranged in XM columns and KLN rows.

公开(公告)号：US09112636B2

公开(公告)日：2015-08-18

申请号：US14116726

申请日：2011-11-21

申请人： Francesco Testa ,  Mauro Rudi Casanova ,  Antonio D'Errico

发明人： Francesco Testa ,  Mauro Rudi Casanova ,  Antonio D'Errico

IPC分类号： H04J14/00 ,  H04J14/02 ,  H04Q11/00

CPC分类号： H04J14/0212 ,  H04J14/0217 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0039 ,  H04Q2011/0058

摘要： An apparatus for an optical communications network comprising a demultiplexer, a plurality of add/drop optical switches for adding and dropping wavelength channels. The add/drop optical switches arranged in a matrix with a number of rows corresponding to a number of output ports of the demultiplexer and a number of columns corresponding to a number of transponders. Each drop optical switch has an express input port associated with an output port of the demultiplexer, a drop output port associated with an individual transponder, and an express output port. Each add optical switch has an express input port, an add input port associated with an individual transponder, and an express output port. The apparatus also comprises a multiplexer with a plurality of input ports associated with express output ports of the add/drop optical switches.

摘要翻译： 一种用于光通信网络的装置，包括解复用器，多个用于添加和删除波长信道的分插光开关。 所述分插光开关被布置成具有与多路分解器的输出端口的数量相对应的行数的矩阵，以及与多个转发器对应的列数。 每个分支光交换机具有与多路分解器的输出端口相关联的快速输入端口，与单个应答器相关联的分支输出端口和快速输出端口。 每个添加光开关具有快速输入端口，与单个应答器相关联的添加输入端口和快速输出端口。 该装置还包括多路复用器，其具有与分插光开关的快速输出端口相关联的多个输入端口。

公开(公告)号：US08983292B2

公开(公告)日：2015-03-17

申请号：US13518215

申请日：2010-01-18

申请人： Francesco Testa ,  Antonio D'Errico

发明人： Francesco Testa ,  Antonio D'Errico

IPC分类号： H04J14/02 ,  H04Q11/00 ,  H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0011 ,  H04Q2011/0018 ,  H04Q2011/0032 ,  H04Q2011/0039 ,  H04Q2011/0056

摘要： A packet switch 40 comprises wavelength tunable optical transmitters 12, an optical switch fabric 42, optical detectors 30 and a controller 32. The transmitters 12 are arranged to receive at least one electrical signal packet to be switched and convert it into a corresponding optical signal packet at an input wavelength. The optical switch fabric 42 comprises an ingress stage 44 comprising wavelength selective routers 46 and an egress stage 50 comprising wavelength selective routers 54 and tunable wavelength converters 26 arranged to receive an optical signal at the input wavelength and to output an optical signal at an output wavelength. The controller 32 is arranged to set the input wavelength of a transmitter 12 and the output wavelength of a wavelength converter to configure a path across the switch fabric 42 connecting the transmitter 12 to a detector 30. A communications network router 90 comprises an input module 92, a packet switch 40, an output module 96 and a scheduler 94.

摘要翻译： 分组交换机40包括波长可调光发射机12，光交换结构42，光学检测器30和控制器32.发射机12被布置为接收要切换的至少一个电信号分组，并将其转换成对应的光信号分组 在输入波长。 光交换结构42包括入口级44，其包括波长选择性路由器46和包括波长选择性路由器54和可调波长转换器26的出口级50，波长选择性路由器54和可调波长转换器26被布置成接收输入波长的光信号并输出​​在输出波长处的光信号 。 控制器32被设置成设置发射器12的输入波长和波长转换器的输出波长以配置穿过将发射机12连接到检测器30的交换结构42的路径。通信网络路由器90包括输入模块92 ，分组交换机40，输出模块96和调度器94。

公开(公告)号：US20120229890A1

公开(公告)日：2012-09-13

申请号：US13496190

申请日：2009-10-20

申请人： Gianluca Meloni ,  Antonella Bogoni ,  Antonio D'Errico ,  Gianluca Berrettini ,  Luca Poti

发明人： Gianluca Meloni ,  Antonella Bogoni ,  Antonio D'Errico ,  Gianluca Berrettini ,  Luca Poti

IPC分类号： H01S5/20 ,  H04J14/00

CPC分类号： G06E1/00 ,  G02F3/02 ,  G06E1/02 ,  H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0041

摘要： An optical device comprises an optical device stage, which comprises an optical input, an optical AND gate, an optical flip-flop and an optical output. The optical input is arranged to receive an optical input pulse at an input wavelength. The optical AND gate comprises a first input arranged to receive a part of said optical input pulse, a second input arranged to receive at least a part of a flip-flop optical output signal, and an output. The optical AND gate is arranged to generate an AND gate optical output pulse dependent on said flip-flop optical output signal. The optical flip-flop comprises a first input arranged to receive a further part of said optical input pulse, a second input arranged to receive a said AND gate optical output pulse, and an output. The optical flip-flop is arranged to generate said flip-flop output signal at a flip-flop output wavelength. At least a part of the flip-flop output signal is provided to said output.

摘要翻译： 光学器件包括光学器件级，其包括光学输入，光学与门，光学触发器和光学输出。 光输入被布置成在输入波长处接收光输入脉冲。 光学与门包括布置成接收所述光输入脉冲的一部分的第一输入，布置成接收触发器光输出信号的至少一部分的第二输入和输出。 光与门被配置为根据所述触发器光输出信号产生与门光输出脉冲。 光学触发器包括布置成接收所述光学输入脉冲的另一部分的第一输入，被布置为接收所述与门光输出脉冲的第二输入和输出。 光触发器被布置为以触发器输出波长产生所述触发器输出信号。 触发器输出信号的至少一部分被提供给所述输出。

公开(公告)号：US09509411B2

公开(公告)日：2016-11-29

申请号：US14385154

申请日：2012-03-19

申请人： Antonio D'Errico

发明人： Antonio D'Errico

IPC分类号： H04B10/556 ,  H04B10/50

CPC分类号： H04B10/5561 ,  H04B10/5051 ,  H04B2210/003

摘要： Phase shift keying optical modulation apparatus comprising optical phase shifting apparatus and an optical modulator. The optical phase shifting apparatus is arranged to receive an optical carrier signal and is arranged to selectively apply a preselected optical phase shift to the optical carrier signal in dependence on a symbol of a 2N-level phase shift keying modulation format to be encoded onto the optical signal. The optical modulator is arranged to receive the optical carrier signal from the optical phase shifting apparatus and is arranged to apply a phase modulation to the optical carrier signal in dependence on the symbol, to thereby encode the symbol onto the optical carrier signal. The phase modulation is a phase-modulation of an N-level phase shift keying modulation format.

摘要翻译： 相移键控光调制装置，包括光移相装置和光调制器。 光学相移装置被布置为接收光载波信号，并且被布置为根据要编码到光学器件上的2N级相移键控调制格式的符号来选择性地向光载波信号施加预选的光相移 信号。 光调制器被布置为从光学相移装置接收光载波信号，并且被配置为根据符号向光载波信号施加相位调制，从而将符号编码到光载波信号上。 相位调制是N级相移键控调制格式的相位调制。