-
公开(公告)号：US20050220399A1
公开(公告)日：2005-10-06
申请号：US10508515
申请日：2002-03-22
IPC分类号： H04B10/2531 , G02B6/26 , G02B6/28
CPC分类号： H04B10/2531
摘要： An optical system having an optical fiber path suitable for propagating an optical signal at least in a first direction, and a plurality M of optical amplifiers disposed along the optical fiber path so as to divide the optical fiber path in N spans of optical fiber. The spans of optical fiber all have substantially a length Lamp and have at least one transmission optical fiber having an effective length Leff. An optical phase conjugation device is associated to one of the amplifiers of the plurality of amplifiers and is disposed in combination with a dispersion compensator. The compensator is disposed upstream from the amplifier associated to the optical phase conjugation device and is adapted for introducing an accumulated dispersion such as to substantially compensate the dispersion accumulated in a portion having a length (Lamp−Leff) of the span immediately upstream from the amplifier associated to the optical phase conjugation device.
摘要翻译： 一种光学系统，其具有适于至少沿第一方向传播光信号的光纤路径，以及沿着光纤路径设置的多个M个放大器，以将光纤路径划分成N个跨越光纤的光纤路径。 光纤的跨度都具有基本上长度的L＆amp; amp;＆amp;具有至少一个具有有效长度L eff的传输光纤。 光学相位共轭装置与多个放大器中的一个放大器相关联并且与色散补偿器组合设置。 补偿器设置在与光学相位共轭装置相关联的放大器的上游，并且适于引入累积的色散，以便基本上补偿累积在具有长度（L < 紧邻从与光学相位共轭装置相关联的放大器的上游的跨度的子空间。
-
公开(公告)号：US11520214B2
公开(公告)日：2022-12-06
申请号：US16989198
申请日：2020-08-10
申请人： Universiteit Twente
发明人： Haider Zia , Klaus-Jochen Boller
IPC分类号： G02F1/365 , G02B6/24 , H04B10/2531 , G02F1/35
摘要： Aspects of the present disclosure describe improved supercontinuum generation based upon alternating optical dispersion along a waveguide length that advantageously generates much more spectral bandwidth than possible with conventional, prior art techniques without losing coherence as well as supporting a larger range of pulse energies (i.e., for lower than conventionally allowed pulse energies or high pulse energies).
-
3.发明授权Method for the compensation of nonlinear impairments in dispersion-managed optical fiber links using phase conjugation and equivalent optical link 有权使用相位共轭和等效光链路补偿色散管理的光纤链路中的非线性损伤的方法公开(公告)号：US09071356B2
公开(公告)日：2015-06-30
申请号：US13628460
申请日：2012-09-27
发明人： Eduardo Mateo , Yoshiaki Aono
IPC分类号： H04B10/08 , H04B10/2543 , H04B10/2531
CPC分类号： H04B10/2543 , H04B10/2531
摘要： A method for nonlinearity compensation for an optical transmission link includes determining a dispersion effect of a transmission link; applying a phase conjugation to the transmission link, the phase conjugation responsive to an input wave over the transmission link and providing a conjugated version of the input wave; and configuring an optimum equivalent link responsive to the phase conjugation after the transmission link to compensate for a non-linear dispersion effect from said transmission link.
摘要翻译： 一种用于光传输链路的非线性补偿的方法包括确定传输链路的色散效应; 对传输链路应用相位共轭，响应于传输链路上的输入波并提供输入波的共轭版本的相位共轭; 以及响应于所述传输链路之后的相位共轭，配置最佳等效链路，以补偿来自所述传输链路的非线性色散效应。
-
公开(公告)号：US20050095012A1
公开(公告)日：2005-05-05
申请号：US11012115
申请日：2004-12-16
申请人： Shigeki Watanabe
发明人： Shigeki Watanabe
IPC分类号： H04B10/2507 , H04B10/07 , H04B10/2525 , H04B10/2531 , H04B10/2543 , H04B10/299 , H04B10/04
CPC分类号： H04B10/25133 , H04B10/2531
摘要： The present invention relates to a method for optical fiber transmission which can increase a transmission distance. A first optical fiber having dispersion is first provided. An optical signal is next supplied to the first optical fiber so that the optical signal is compressed on the time axis as propagating in the first optical fiber. In the case that the dispersion is normal dispersion, for example, prechirping is performed so that the optical signal has down-chirp. A compressed optical signal output from the first optical fiber is supplied to an optical device having a saturated gain. According to this method, the transmission distance can be increased by the effective combination of compression of the optical signal and waveform shaping by the optical device.
-
5.发明授权公开(公告)号：US11581945B2
公开(公告)日：2023-02-14
申请号：US17310913
申请日：2020-02-25
发明人： Lutz Rapp
IPC分类号： H04B10/071 , H04B10/69 , H04B10/2543 , H04B10/2507 , H04B10/2531 , H04B10/61
摘要： The disclosure relates to a method, an optical receiver and an optical system for compensating, at an optical receiver, signal distortions induced in an optical carrier signal by a periodic copropagating optical signal, wherein the optical carrier signal and the copropagating signal copropagate at least in part of an optical system or network, by: receiving, at the optical receiver, the optical carrier signal, wherein the optical carrier signal is distorted by the copropagating signal; determining, at the optical receiver, a period of a periodic component of the distorted optical carrier signal; determining, at the optical receiver, a periodic distortion of the distorted optical carrier signal; and generating a compensation signal to correct the distorted optical carrier signal according to the determined periodic distortion.
-
6.发明申请公开(公告)号：US20220140904A1
公开(公告)日：2022-05-05
申请号：US17310913
申请日：2020-02-25
发明人： Lutz RAPP
IPC分类号： H04B10/2543 , H04B10/071 , H04B10/2507 , H04B10/2531 , H04B10/61 , H04B10/69
摘要： The disclosure relates to a method, an optical receiver and an optical system for compensating, at an optical receiver, signal distortions induced in an optical carrier signal by a periodic copropagating optical signal, wherein the optical carrier signal and the copropagating signal copropagate at least in part of an optical system or network, by: receiving, at the optical receiver, the optical carrier signal, wherein the optical carrier signal is distorted by the copropagating signal; determining, at the optical receiver, a period of a periodic component of the distorted optical carrier signal; determining, at the optical receiver, a periodic distortion of the distorted optical carrier signal; and generating a compensation signal to correct the distorted optical carrier signal according to the determined periodic distortion.
-
公开(公告)号：US20190393965A1
公开(公告)日：2019-12-26
申请号：US16449319
申请日：2019-06-21
发明人： Shaoliang ZHANG , Fatih YAMAN , Eduardo RODRIGUEZ , Yoshihisa INADA , Kohei NAKAMURA , Takanori INOUE
IPC分类号： H04B10/61 , H04B10/2543 , G06K9/62 , H04L27/20 , G06N3/08 , H04B10/2531 , H04L27/26
摘要： Aspects of the present disclosure describe systems, methods and structures for optical fiber nonlinearity compensation using neural networks that advantageously employ machine learning (ML) algorithms for nonlinearity compensation (NLC) that advantageously provide a system-agnostic model independent of link parameters, and yet still achieve a similar or better performance at a lower complexity as compared with prior-art methods. Systems, methods, and structures according to aspects of the present disclosure include a data-driven model using the neural network (NN) to predict received signal nonlinearity without prior knowledge of the link parameters. Operationally, the NN is provided with intra-channel cross-phase modulation (IXPM) and intra-channel four-wave mixing (IFWM) triplets that advantageously provide a more direct pathway to underlying nonlinear interactions.
-
8.发明申请Transmission of solitons on alternate sign dispersion optical fibres with phase conjugation 审中-公开在具有相位共轭的交替符号色散光纤上传输孤子公开(公告)号：US20050117862A1
公开(公告)日：2005-06-02
申请号：US10490866
申请日：2001-09-28
IPC分类号： H04B10/2507 , H04B10/2531 , G02B6/02
CPC分类号： H04B10/2531 , H04B10/25077
摘要： An optical transmission system having optical fibres having dispersion of alternate sign greater, in absolute value, than 1 ps/(nm km) arranged in an optical path in accordance with a dispersion map appropriate for the transmission of DM solitons at a wavelength λc. The system has a transmission station and a receiver station connected to the optical path. The transmission station launches on the optical path at least a first optical pulse RZ. At least one phase conjugation device is located along the optical path to invent the spectrum of at least the first pulse. This phase conjugation device is located in a chirp cancellation portion of the optical path which includes a point at which the chirp of a DM solition of wavelength λc is cancelled out.
摘要翻译： 一种光传输系统，具有根据适合于在波长λ
-
公开(公告)号：US5861970A
公开(公告)日：1999-01-19
申请号：US586634
申请日：1996-01-29
IPC分类号： H01S5/50 , H04B10/2531 , H04B10/291 , H04B10/00
CPC分类号： H04B10/2531 , H01S5/50 , H04B10/2914 , H01S5/5054
摘要： A method of compensating for dispersion in an optical communications system includes the steps of: positioning a semiconductor optical amplifier between a first and a second length of optical fibre, launching optical signals into the first length of optical fibre, directing optical signals emerging from the first length of optical fibre into the semiconductor optical amplifier, supplying optical pump radiation to the semiconductor optical amplifier so that the optidcal signals and the pump radiation interact within the semiconductor optical amplifier and generate the phase conjugate of the optical signals, and launching the phase conjugate optical signals into the second length of optical fibre.
摘要翻译： PCT No.PCT / GB94 / 00602 Sec。 371日期1996年1月29日 102（e）日期1996年1月29日PCT 1994年3月23日PCT公布。 公开号WO95 / 03653 日期1995年2月2日在光通信系统中补偿色散的方法包括以下步骤：将半导体光放大器定位在第一和第二长度的光纤之间，将光信号发射到第一长度的光纤中，引导光 信号从第一长度的光纤进入半导体光放大器，向半导体光放大器提供光泵辐射，使得光信号和泵浦辐射在半导体光放大器内相互作用并产生光信号的相位共轭，以及 将相位共轭光信号发射到第二长度的光纤中。
-
公开(公告)号：US20200371403A1
公开(公告)日：2020-11-26
申请号：US16989198
申请日：2020-08-10
申请人： Universiteit Twente
发明人： Haider ZIA , Klaus-Jochen BOLLER
IPC分类号： G02F1/365 , G02B6/24 , H04B10/2531
摘要： Aspects of the present disclosure describe improved supercontinuum generation based upon alternating optical dispersion along a waveguide length that advantageously generates much more spectral bandwidth than possible with conventional, prior art techniques without losing coherence as well as supporting a larger range of pulse energies (i.e., for lower than conventionally allowed pulse energies or high pulse energies).
-
-
-
-
-
-
-
-
-
搜索结果
23 条记录 (耗时 0.018 秒)
