公开(公告)号：US20040258351A1

公开(公告)日：2004-12-23

申请号：US10493102

申请日：2004-04-20

发明人： Thomas Ducellier ,  Alan Hnatiw

IPC分类号： G02B006/28

CPC分类号： G02B6/12011 ,  G02B6/12021 ,  G02B6/12033 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29313 ,  H04Q11/0005 ,  H04Q2011/0022 ,  H04Q2011/0026 ,  H04Q2011/003 ,  H04Q2011/0032 ,  H04Q2011/0049

摘要： A wavelength selective switch is realized by combining a quantized dispersion element and an array of switching means. The quantized dispersion element enables to concentrate all the wavelengths within predetermined wavelength bands onto the same location in the switching array. With this arrangement, a low fill factor switching array can be used while maintaining good flat-top spectral performance with no spectral dips and improving alignment tolerances.

摘要翻译： 通过组合量化色散元件和开关装置阵列来实现波长选择开关。 量化的色散元件使得能够将预定波长带内的所有波长集中到开关阵列中的相同位置。 通过这种布置，可以使用低填充因子切换阵列，同时保持良好的平顶光谱性能，而无需频谱下降并改善对准公差。

公开(公告)号：US20040240780A1

公开(公告)日：2004-12-02

申请号：US10864656

申请日：2004-06-09

发明人： Craig W. Hodgson ,  Donald A. Frederick

IPC分类号： G02B006/28

CPC分类号： G01D5/35383

摘要： Sensor arrays utilizing standard 1null2 couplers reduce the differences in the returned optical power levels by appropriate selection of the coupling ratios. Preferred embodiments are described that comprise 6 distribution fiber lines and 16 return fiber lines. One embodiment includes 16 sensor groups in which each sensor group has a dedicated return line. In another embodiment, 8 sensor groups are configured so that no two adjacent sensors have either a common distribution fiber line or a common return fiber line.

摘要翻译： 使用标准1x2耦合器的传感器阵列通过适当选择耦合比来减少返回的光功率水平的差异。 描述了包括6个分配光纤线路和16个返回光纤线路的优选实施例。 一个实施例包括16个传感器组，其中每个传感器组具有专用的返回线。 在另一个实施例中，8个传感器组被配置成使得没有两个相邻的传感器具有公共分配光纤线路或公共返回光纤线路。

公开(公告)号：US20040234201A1

公开(公告)日：2004-11-25

申请号：US10443978

申请日：2003-05-23

发明人： Yury Logvin ,  Adrian O'Donnell

IPC分类号： G02B006/34 ,  G02B006/28

CPC分类号： G02B6/12007 ,  G02B6/12011 ,  G02B6/12014 ,  G02B6/12021

摘要： An optical wavelength multiplexing device for use in an optical networking environment is presented. The device features optically dispersive elements combined with an array of reflectors that permit both realization of flat-top filter characteristics together with noise reduction, and in some embodiments wavelength routing, blocking or add-drop functionality. Additionally, the design of the device is easily modified to dissipate light having a wavelength that does not correspond to any predetermined wavelength channel.

摘要翻译： 提出了一种用于光网络环境的光波长多路复用装置。 该器件具有与反射器阵列组合的光学色散元件，其允许实现平顶滤波器特性以及噪声降低，并且在一些实施例中，波长路由，阻塞或分插功能。 此外，设备的设计容易地被修改以消散具有不对应于任何预定波长信道的波长的光。

公开(公告)号：US20040234194A1

公开(公告)日：2004-11-25

申请号：US10483516

申请日：2004-06-24

发明人： Ulf Persson

IPC分类号： G02B006/28

CPC分类号： H04J14/0283 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0227 ,  H04J14/0241

摘要： The present invention relates to a method using a node, a system comprising a node and a node for filtering signals in a wavelength division multiplexing (WDM) optical communications system, especially for re-configurably adding and dropping signals to and from an optical fibre path. The node comprising a drop filter, an add filter, a signal channel receiver, and a signal channel transmitter each being connected to a switch for signal channel relaying between said network, and signal channel dropping and adding from and to said network. The node provides low loss for relayed signals by allowing the drop filter to have a low crosstalk isolation, and provides high crosstalk isolation for dropped signal channels by connecting said receiver to the switch through an additional filter with high filtering characteristics for at least one predetermined signal.

摘要翻译： 本发明涉及一种使用节点的方法，包括用于在波分多路复用（WDM）光通信系统中滤波信号的节点和节点的系统，特别是用于可重配置地向或从光纤路径添加和丢弃信号 。 该节点包括一个下降滤波器，一个加法滤波器，一个信号通道接收器和一个信号通道发射器，每个都连接到一个开关，用于在所述网络之间进行信号通道中继，并且信号通道从所述网络中删除和添加。 该节点通过允许下降滤波器具有低串扰隔离来为中继信号提供低损耗，并且通过将至少一个预定信号具有高滤波特性的附加滤波器将所述接收器连接到开关，为丢弃的信号通道提供高串扰隔离 。

公开(公告)号：US20040228602A1

公开(公告)日：2004-11-18

申请号：US10866825

申请日：2004-06-15

申请人： CIENA Corporation

发明人： Jeffrey C. Livas ,  Tomas Brenner

IPC分类号： G02B006/00 ,  G02B006/28

CPC分类号： H04B10/296 ,  H04B10/077 ,  H04B10/07955 ,  H04L2025/03477 ,  H04L2025/03611

摘要： An optical device including dynamic channel equalization is provided. In an exemplary multiplexer or line amplifier configuration the device includes a plurality of separate optical paths, each of which receiving a separate group of optical signals. Each group of optical signals is provided to an associated variable optical attenuator. Separate inputs of an optical combiner are each coupled to an output of an associated one of the variable optical attenuators. The optical combiner has an output providing the separate groups of optical signals in an aggregated form on an aggregate optical signal path. An optical performance monitor is coupled to the aggregate optical signal path, and is configured to detect an optical signal to noise ratio of each of the separate groups. The monitor supplied a feedback signal to corresponding ones of the variable optical attenuators for adjusting a respective attenuation associated with each of the attenuators in dependence of the detected optical signal to noise ratios. The device may also be provided in a demultiplexer configuration.

摘要翻译： 提供了包括动态信道均衡的光学装置。 在示例性多路复用器或线路放大器配置中，该器件包括多个单独的光路，每个光路接收单独的一组光信号。 每组光信号被提供给相关联的可变光衰减器。 光组合器的独立输入各自耦合到可变光衰减器中相关联的一个的输出端。 光合并器具有在聚合光信号路径上以聚集形式提供单独的光信号组的输出。 光学性能监视器耦合到聚合光信号路径，并且被配置为检测每个单独组的光信噪比。 监视器向对应的可变光衰减器提供反馈信号，用于根据检测到的光信噪比来调整与每个衰减器相关联的相应衰减。 该设备还可以以解复用器配置提供。

公开(公告)号：US20040228573A1

公开(公告)日：2004-11-18

申请号：US10842996

申请日：2004-05-11

发明人： Yukari Terakawa ,  Toshinari Mori ,  Hayami Hosokawa

IPC分类号： G02B006/28 ,  G02B006/10

CPC分类号： G02B6/29368 ,  G02B6/12007 ,  G02B6/2938 ,  G02B6/4246 ,  G02B2006/121 ,  G02B2006/1215

摘要： Light of wavelengths null2 and null3 (null2

摘要翻译： 波长λ2和λ3（λ2<λ3）的光在第一核中传播。 从第一核发射的光被分成过滤器。 也就是说，波长λ2的光通过滤光器透射并入射到第三核心上，而波长λ3的光从滤光器反射并入射到第二核心上。 第二芯具有对于波长λ3的光的单一模式工作的截面积，并且对于波长λ2的光以多模式工作。 因此，可以防止光复用器/解复用器中的噪声或杂散光。

公开(公告)号：US20040223201A1

公开(公告)日：2004-11-11

申请号：US10791129

申请日：2004-03-02

发明人： Leroy David Dickson

IPC分类号： G02B005/32 ,  G02B006/28

CPC分类号： G02B6/29397 ,  G02B5/1814 ,  G02B5/1857 ,  G02B5/32 ,  G02B6/2706 ,  G02B6/2793 ,  G02B6/29311 ,  G02B27/4244

摘要： An enhanced volume phase diffraction grating provides high dispersion, uniformly high diffraction efficiency and equal diffraction efficiencies for all polarizations across a wide range of wavelengths. In preferred embodiments, the thickness of the volume phase material and the modulation of its refractive index are jointly established to provide equalization of diffraction efficiencies for all polarizations over a wide range of wavelengths. The equalization occurs where the S and P diffraction efficiencies are both at a maximum.

摘要翻译： 增强的体积相位衍射光栅可以在宽范围的波长范围内为所有极化提供高色散，均匀的高衍射效率和相等的衍射效率。 在优选实施例中，共同建立体积相材料的厚度和其折射率的调制，以在宽波长范围内为所有极化提供衍射效率的均衡。 均衡发生在S和P衍射效率都最大的地方。

公开(公告)号：US20040218853A1

公开(公告)日：2004-11-04

申请号：US10007719

申请日：2001-11-09

发明人： John C. Tsai ,  David W. Wang

IPC分类号： G02B006/28 ,  G02B006/34

CPC分类号： B82Y20/00 ,  G02B5/1857 ,  G02B6/124 ,  G02B2006/12038 ,  G02B2006/12061 ,  G02B2006/12078

摘要： A multiplexing and de-multiplexing system that may both use the same wavelength division multiplexing (WDM) device. For multiplexing, light sources provide a plurality of light beams having different wavelengths and the WDM forms a single light beam. For de-multiplexing, a light source provides a light beam having a plurality of different light wavelengths and the WDM forms a plurality of output light beams each having respective of the wavelengths. The WDM devices may particularly be formed from optically multi-dimensional planar gratings and cubical gratings which may diffract single wavelengths, sets of wavelengths, and ranges of wavelengths each with respect to one optical dimension present. The gratings may be discrete or integrated in the multiplexing or the de-multiplexing devices. Complex embodiments of the multiplexing system, such as an interleaver, and complex embodiments of the de-multiplexing system, such as a de-interleaver, can be formed using blocks of the gratings.

摘要翻译： 可以使用相同的波分复用（WDM）设备的复用和解复用系统。 对于多路复用，光源提供具有不同波长的多个光束，并且WDM形成单个光束。 为了解复用，光源提供具有多个不同光波长的光束，并且WDM形成各自具有各自波长的多个输出光束。 WDM设备可以特别地由光学多维平面光栅和立方光栅形成，其可以相对于存在的一个光学维度衍射单个波长，波长组和波长范围。 光栅可以是离散的或集成在复用或解复用器件中。 诸如交织器的复用系统的复杂实施例和解复用系统的复杂实施例（诸如解交织器）可以使用光栅块形成。

公开(公告)号：US20040208584A1

公开(公告)日：2004-10-21

申请号：US10060666

申请日：2002-01-29

发明人： Robert C. Keller

IPC分类号： G02B006/28 ,  H04J014/02

CPC分类号： G02B6/3572 ,  G02B6/29305 ,  G02B6/29383 ,  G02B6/29395 ,  G02B6/3512 ,  G02B6/3546 ,  G02B6/356 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0221

摘要： An optical add-drop multiplexer 400 includes an optical demultiplexer 410 having an input port coupled to receive an wavelength multiplexed optical signal. The optical demultiplexer 410 has a plurality of outputs, each for carrying an optical signal at one of the plurality of wavelengths. Switch optics 440 includes a channel coupled to each output. Each channel of the switch optics includes an analog mirror 424 coupled to receive the optical signal for that channel. The analog mirror 424 is rotatable along at least one axis is able to reflect a received optical signal in more than two directions. Each channel also includes an in/out lens device 422 aligned to receive the optical signal from the analog mirror 424 in a pass mode and an add/drop lens device 426 aligned to receive the optical signal from the analog mirror device 424 in an add/drop mode.

摘要翻译： 光分插复用器400包括具有耦合以接收波长复用光信号的输入端口的光解复用器410。 光解复用器410具有多个输出，每个输出用于承载多个波长中的一个波长的光信号。 开关光学器件440包括耦合到每个输出的通道。 开关光学器件的每个通道包括耦合以接收该通道的光信号的模拟反射镜424。 模拟反射镜424可沿着至少一个轴线旋转，能够在多于两个方向上反射接收到的光信号。 每个通道还包括对准以在通过模式中从模拟反射镜424接收光学信号的入/漏透镜装置422以及对准的接收来自模拟反射镜装置424的光信号的分插透镜装置426， 下拉模式。

公开(公告)号：US20040190820A1

公开(公告)日：2004-09-30

申请号：US10645870

申请日：2003-08-22

发明人： Tetsuya Uda

IPC分类号： G02B006/28

CPC分类号： H04B10/25133

摘要： In a wavelength-division multiplexing system with an OADM mounted, part of the chromatic dispersion on a transmission line is compensated for by a chromatic dispersion compensator for dropped wavelength that is provided in the wavelength-division multiplexing system, and the other part of the chromatic dispersion is compensated for by a chromatic dispersion compensator for added wavelength that is similarly provided in the wavelength-division multiplexing system. Thus, the chromatic dispersion compensator for dropped wavelength acts on the signal dropped by the OADM, and the chromatic dispersion compensator for added wavelength acts on the added signal. Both the chromatic dispersion compensators act on the passing signal. With the chromatic dispersion compensators being mounted in the optical transmission apparatus before the system is upgraded, it is not necessary to alter the chromatic dispersion compensating method and the variation of the communication quality can be suppressed.

摘要翻译： 在安装有OADM的波分复用系统中，传输线上的色散的一部分由波分复用系统中提供的用于丢弃波长的色散补偿器补偿，而另一部分色度 色散由波分复用系统中类似提供的附加波长的色散补偿器补偿。 因此，用于下降波长的色散补偿器作用在由OADM下降的信号上，并且用于附加波长的色散补偿器作用在附加信号上。 色散补偿器都作用在通过信号上。 在系统升级之前将色散补偿器安装在光传输装置中，不需要改变色散补偿方法，并且可以抑制通信质量的变化。