公开(公告)号：US08019232B2

公开(公告)日：2011-09-13

申请号：US10592032

申请日：2004-03-10

Applicant: Pierpaolo Boffi ,  Lucia Marazzi ,  Mario Martinelli ,  Livio Paradiso ,  Paola Parolari

Inventor： Pierpaolo Boffi ,  Lucia Marazzi ,  Mario Martinelli ,  Livio Paradiso ,  Paola Parolari

IPC: H04B10/04

CPC classification number: H04B10/505 ,  H04B10/5055 ,  H04B10/5561

Abstract: A method of phase modulating optical radiation by the steps of phase modulating the optical radiation by using a modulator having an extinction ratio in order to provide a multilevel phase shift key signal, and applying to each optical pulse a phase-shift having an absolute value depending on the extinction ratio and a sign depending, for each of the optical pulses, on the respective optical phase value. An apparatus implementing the method is also disclosed.

Abstract translation: 通过使用具有消光比的调制器对光辐射进行相位调制以便提供多电平相移键信号的步骤来相位调制光辐射的方法，并且向每个光脉冲施加具有绝对值的绝对值的相移 对于每个光脉冲，消光比和相应的光学相位值的符号。 还公开了一种实现该方法的装置。

公开(公告)号：US06872794B2

公开(公告)日：2005-03-29

申请号：US10268717

申请日：2002-10-11

Applicant: Andrea Zappettini ,  Silvia Maria Pietralunga ,  Yuri Dubitsky ,  Antonio Zaopo ,  Mario Martinelli

Inventor： Andrea Zappettini ,  Silvia Maria Pietralunga ,  Yuri Dubitsky ,  Antonio Zaopo ,  Mario Martinelli

IPC: C08G61/02 ,  C08L65/02 ,  G02F1/361 ,  C08F12/04

CPC classification number: C08L65/02 ,  C08G61/02 ,  C08G2261/312 ,  G02F1/3616

Abstract: The invention relates to new polymers useful in non linear optical (NLO) applications, particularly as optical waveguide materials.

Abstract translation: 本发明涉及可用于非线性光学（NLO）应用的新聚合物，特别是作为光波导材料。

公开(公告)号：US06292280B1

公开(公告)日：2001-09-18

申请号：US09096387

申请日：1998-06-12

Applicant: Pierpaolo Boffi ,  Mario Martinelli ,  Diego Mottarella ,  Davide Piccinin

Inventor： Pierpaolo Boffi ,  Mario Martinelli ,  Diego Mottarella ,  Davide Piccinin

IPC: G06E100

CPC classification number: H04B10/11 ,  H04B10/1141 ,  H04Q11/0003 ,  H04Q2011/0015 ,  H04Q2011/002 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0035 ,  H04Q2011/0039 ,  H04Q2011/0041

Abstract: An optical device is provided for processing a digital optical signal in parallel and in free space. A device consistent with the invention provides for inputting a digital optical signal in guided propagation, converting the digital optical signal to n digital optical signals in guided propagation, and converting the n digital optical signals to n digital optical signals in free space. In addition, the invention provides for selecting a bit preselected from the at least one temporal series of n bits of each of the n digital optical signals, modifying optically, at least one bit of the spatial figure of the n bits, and outputting the at least one bit of the spatial figure of n bits.

Abstract translation: 提供一种用于并行和自由空间处理数字光信号的光学装置。 符合本发明的装置提供了在导向传播中输入数字光信号，将数字光信号转换成n导数传播中的数字光信号，并将n个数字光信号转换成自由空间中的n个数字光信号。 另外，本发明提供从n个数字光信号中的每一个n帧的至少一个时间序列预先选择的位，光学修改n位空间图的至少一位，并输出在 n位的空间图的至少一位。

公开(公告)号：US20140199066A1

公开(公告)日：2014-07-17

申请号：US14129903

申请日：2012-06-15

Applicant: Paolo Martelli ,  Alberto Gatto ,  Mario Martinelli

Inventor： Paolo Martelli ,  Alberto Gatto ,  Mario Martinelli

IPC: H04B10/2581 ,  H04J14/04

CPC classification number: H04B10/2581 ,  G02B6/4206 ,  H04J14/04

Abstract: An optical communication system is disclosed. The optical communication system comprises an optical transmitter and a substantially circular multi-mode optical fiber. The optical transmitter comprises a generator of at least two free space circular vortices and comprises an optical element configured to receive the at least two free space circular vortices and to couple them to an input facet of the optical fiber. The optical fiber is configured to receive at the input facet the at least two free space circular vortices and is configured to generate therefrom at least two corresponding guided circular vortices having respective propagation constants, wherein the values of the propagation constants at a defined frequency are different each other.

Abstract translation: 公开了一种光通信系统。 光通信系统包括光发射机和基本圆形的多模光纤。 光发射器包括至少两个自由空间圆形涡流的发生器，并且包括被配置为接收至少两个自由空间圆形涡流并将它们耦合到光纤的输入小面的光学元件。 光纤被配置为在输入面处接收至少两个自由空间圆形涡流，并且被配置为由其产生具有相应传播常数的至少两个对应的导向圆形涡流，其中在定义的频率处的传播常数的值是不同的 彼此。

公开(公告)号：US08781337B2

公开(公告)日：2014-07-15

申请号：US13226149

申请日：2011-09-06

Applicant: Pierpaolo Boffi ,  Lucia Marazzi ,  Mario Martinelli ,  Livio Paradiso ,  Paola Parolari

Inventor： Pierpaolo Boffi ,  Lucia Marazzi ,  Mario Martinelli ,  Livio Paradiso ,  Paola Parolari

IPC: H04B10/04 ,  H04B10/12

CPC classification number: H04B10/505 ,  H04B10/5055 ,  H04B10/5561

Abstract: A method of phase modulating optical radiation by the steps of phase modulating the optical radiation by using a modulator having an extinction ratio in order to provide a multilevel phase shift key signal, and applying to each optical pulse a phase-shift having an absolute value depending on the extinction ratio and a sign depending, for each of the optical pulses, on the respective optical phase value. An apparatus implementing the method is also disclosed.

Abstract translation: 通过使用具有消光比的调制器对光辐射进行相位调制以便提供多电平相移键信号的步骤来相位调制光辐射的方法，并且向每个光脉冲施加具有绝对值的绝对值的相移 对于每个光脉冲，消光比和相应的光学相位值的符号。 还公开了一种实现该方法的装置。

公开(公告)号：US08200087B2

公开(公告)日：2012-06-12

申请号：US13038990

申请日：2011-03-02

Applicant: Pierpaolo Boffi ,  Lucia Marazzi ,  Paolo Martelli ,  Mario Martinelli ,  Aldo Righetti ,  Rocco Siano

Inventor： Pierpaolo Boffi ,  Lucia Marazzi ,  Paolo Martelli ,  Mario Martinelli ,  Aldo Righetti ,  Rocco Siano

IPC: H04J14/06

CPC classification number: H04J14/06 ,  G02F1/0136 ,  H04J14/02

Abstract: A device and method for stabilizing the state of polarization of polarization multiplexed optical radiation including an identified channel is disclosed. The device and method comprise providing to the polarization multiplexed optical radiation a first controllable polarization transformation to generate a first transformed optical radiation; detecting a first state of polarization of a first polarized portion with respect to a first polarization parameter; controlling the first controllable polarization transformation so that the first polarization parameter has a predetermined value independent of a polarization state of the polarization multiplexed optical radiation; providing to the first transformed optical radiation a second controllable polarization transformation to generate a second transformed optical radiation; detecting a second state of polarization of a second polarized portion; and controlling the second controllable polarization transformation so that the second state of polarization has a predefined value.

Abstract translation: 公开了一种用于稳定包括识别的通道的偏振复用光辐射的偏振状态的装置和方法。 该装置和方法包括向偏振复用光辐射提供第一可控偏振变换以产生第一变换光辐射; 检测相对于第一偏振参数的第一偏振部分的第一极化状态; 控制第一可控偏振变换，使得第一偏振参数具有与偏振复用光辐射的偏振状态无关的预定值; 向所述第一变换光辐射提供第二可控偏振变换以产生第二变换光辐射; 检测第二偏振部分的第二偏振状态; 以及控制所述第二可控偏振变换，使得所述第二极化状态具有预定义的值。

公开(公告)号：US07917031B2

公开(公告)日：2011-03-29

申请号：US11665466

申请日：2004-10-22

Applicant: Pierpaolo Boffi ,  Lucia Marazzi ,  Paolo Martelli ,  Mario Martinelli ,  Aldo Righetti ,  Rocco Siano

Inventor： Pierpaolo Boffi ,  Lucia Marazzi ,  Paolo Martelli ,  Mario Martinelli ,  Aldo Righetti ,  Rocco Siano

IPC: H04J14/06

CPC classification number: H04J14/06 ,  G02F1/0136 ,  H04J14/02

Abstract: A device and method for stabilizing the polarization of polarization multiplexed optical radiation includes an identified channel which is provided with a pilot signal. The device 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 the 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; and controlling, responsively to the optical power, the further controllable polarization transformation so that the identified channel downstream the further controllable polarization transformation has a predefined state of polarization.

Abstract translation: 用于稳定偏振复用光辐射的偏振的装置和方法包括被提供有导频信号的识别信道。 该装置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; 响应于光功率控制可控偏振变换，使得偏振变换下游的识别信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; 并且响应于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识别信道具有预定的偏振状态。

公开(公告)号：US20070274731A1

公开(公告)日：2007-11-29

申请号：US10592032

申请日：2004-03-10

Applicant: Pierpaolo Boffi ,  Lucia Marazzi ,  Mario Martinelli ,  Livio Paradiso ,  Paola Parolari

Inventor： Pierpaolo Boffi ,  Lucia Marazzi ,  Mario Martinelli ,  Livio Paradiso ,  Paola Parolari

IPC: H04B10/155

CPC classification number: H04B10/505 ,  H04B10/5055 ,  H04B10/5561

Abstract: A method of phase modulating optical radiation by the steps of phase modulating the optical radiation by using a modulator having an extinction ratio in order to provide a multilevel phase shift key signal, and applying to each optical pulse a phase-shift having an absolute value depending on the extinction ratio and a sign depending, for each of the optical pulses, on the respective optical phase value. An apparatus implementing the method is also disclosed.

Abstract translation: 通过使用具有消光比的调制器对光辐射进行相位调制以便提供多电平相移键信号的步骤来相位调制光辐射的方法，并且向每个光脉冲施加具有绝对值的绝对值的相移 对于每个光脉冲，消光比和相应的光学相位值的符号。 还公开了一种实现该方法的装置。

公开(公告)号：US20060140636A1

公开(公告)日：2006-06-29

申请号：US10536807

申请日：2002-11-29

Applicant: Lucia Marazzi ,  Mario Martinelli ,  Andrea Melloni ,  Livio Paradiso ,  Paola Parolari

Inventor： Lucia Marazzi ,  Mario Martinelli ,  Andrea Melloni ,  Livio Paradiso ,  Paola Parolari

IPC: H04B10/12

CPC classification number: H04B10/25137 ,  H04B10/25253

Abstract: An optical communication system has a transmitter generating a phase-modulated optical signal (Sa, Sb, . . . , Sk); a receiver for receiving the phase-modulated optical signal; an optical communication link between the transmitter section and the receiver section. The optical communication link is a dispersion-managed optical communication link having dispersion-compensating elements propagating the phase-modulated optical signal at substantially constant optical power. The receiver has a dispersive element having a prescribed dispersion, the dispersive element receiving and converting the phase-modulated optical signal into a corresponding intensity-modulated optical signal, and an optical intensity detector fed with the intensity-modulated optical signal.

Abstract translation: 光通信系统具有产生相位调制光信号（Sa，Sb ...，Sk）的发射机; 用于接收相位调制光信号的接收机; 在发射机部分和接收机部分之间的光通信链路。 光通信链路是色散管理的光通信链路，其色散补偿元件以基本恒定的光功率传播相位调制的光信号。 接收器具有具有规定色散的色散元件，色散元件接收并将相位调制光信号转换为对应的强度调制光信号，以及馈送有强度调制光信号的光强度检测器。

公开(公告)号：US06584261B2

公开(公告)日：2003-06-24

申请号：US09988624

申请日：2001-11-20

Applicant: Mario Martinelli ,  Andrea Zappettini

Inventor： Mario Martinelli ,  Andrea Zappettini

IPC: G02B600

CPC classification number: G02F3/00 ,  H01S3/102 ,  H01S3/1022

Abstract: An apparatus for gating an optical signal comprising: an input stage arranged to receive and combine first and second optical control signals (ON, OFF) of first and second wavelengths, and an optical signal (SIGNAL IN) to be gated of a third wavelength. A gain medium is arranged to receive the signals SIGNAL IN, ON and OFF from the input stage. The gain medium (e.g. YAG) comprises a transition metal dopant (e.g. Cr4+) that has an excited state populatable by the first control signal and depopulatable by the second control signal to allow selective amplification of the optical signal to be gated by stimulated emission from the excited state responsive to the control signals. The amplification process has a very fast switch-on time that is several orders of magnitude faster than in prior art devices based on the rare earth dopant Er3+.

Abstract translation: 一种用于选通光信号的装置，包括：输入级，被布置为接收和组合第一和第二波长的第一和第二光控制信号（ON，OFF）以及要被选通第三波长的光信号（SIGNAL IN）。 增益介质被布置成从输入级接收信号IN，ON和OFF。 增益介质（例如YAG）包括过渡金属掺杂剂（例如Cr4 +），其具有可被第一控制信号吸引的激发态，并且可被第二控制信号抑制，以允许通过受激发射 激发状态响应于控制信号。 放大过程具有非常快的接通时间，其比基于稀土掺杂剂Er3 +的现有技术器件快几个数量级。