公开(公告)号：US09069139B2

公开(公告)日：2015-06-30

申请号：US13558802

申请日：2012-07-26

Applicant: Sheldon McLaughlin ,  Peter David Roorda ,  Paul Colbourne ,  Barrie Keyworth

Inventor： Sheldon McLaughlin ,  Peter David Roorda ,  Paul Colbourne ,  Barrie Keyworth

IPC: G02B6/35 ,  B81B7/04 ,  G02B27/42 ,  G02B27/10

CPC classification number: G02B6/3534 ,  B81B7/04 ,  G02B6/3512 ,  G02B6/3518 ,  G02B6/3546 ,  G02B6/3556 ,  G02B26/0833 ,  G02B27/106 ,  G02B27/1086 ,  G02B27/1093 ,  G02B27/42

Abstract: A multicast optical switch uses a diffractive bulk optical element, which splits at least one input optical beam into sub-beams, which freely propagate in a medium towards an array of directors, such as MEMS switches, for directing the sub-beams to output ports. Freely propagating optical beams can cross each other without introducing mutual optical loss. The amount of crosstalk is limited by scattering in the optical medium, which can be made virtually non-existent. Therefore, the number of the crossover connections, and consequently the number of inputs and outputs of a multicast optical switch, can be increased substantially without a loss or a crosstalk penalty.

Abstract translation: 组播光学交换机使用衍射体光学元件，其将至少一个输入光束分成子光束，所述子光束在介质中自由地传播到诸如MEMS开关的导向器阵列，用于将子光束引导到输出端口 。 自由传播的光束可以彼此交叉而不引入相互的光学损耗。 串扰的量受光介质中的散射的限制，实际上可能不存在。 因此，可以基本上增加交叉连接的数量以及因此多播光交换机的输入和输出的数量，而不会造成丢失或串扰损失。

公开(公告)号：US20140161454A1

公开(公告)日：2014-06-12

申请号：US14102814

申请日：2013-12-11

Applicant: Peter David ROORDA

Inventor： Peter David ROORDA

IPC: H04J14/02

CPC classification number: H04J14/0212 ,  H04J14/0209 ,  H04J14/0219 ,  H04Q11/0005 ,  H04Q2011/0047 ,  H04Q2011/0052

Abstract: A scalable multicast M×N optical switch (MCS) includes a non-scalable MCS having a plurality of (L+1)×1 selector switches east coupled at one of its L entrance ports to egress ports of the non-scalable MCS, the remaining L−1 entrance ports being coupled to an L*N upgrade ports, where M and N are integers ≧2, and L is an integer ≧1. This allows the scalable MCS to be cascaded in a daisy-chain fashion, providing scalability from the M common ports to L*M common ports. In another embodiment, the selector switches are integrated into the MCS, providing scalability of common MCS ports.

Abstract translation: 可扩展组播M×N光交换机（MCS）包括具有多个（L + 1）×1个选择器开关的非可缩放MCS，所述多个（L + 1）×1选择器开关在其L个入口端口之一东耦合到不可缩放MCS的出口端口， 剩余的L-1入口端口连接到L * N升级端口，其中M和N是整数≥2，并且L是整数≥1。 这允许可伸缩的MCS以菊花链方式级联，从而提供从M个通用端口到L * M公共端口的可扩展性。 在另一个实施例中，选择器开关被集成到MCS中，提供公共MCS端口的可扩展性。

公开(公告)号：US20100028006A1

公开(公告)日：2010-02-04

申请号：US12576807

申请日：2009-10-09

Applicant: John Peter Guy ,  Peter David Roorda ,  Alan Glen Solheim ,  Kevan Peter Jones ,  Greg Peter Friesen

Inventor： John Peter Guy ,  Peter David Roorda ,  Alan Glen Solheim ,  Kevan Peter Jones ,  Greg Peter Friesen

IPC: H04J14/02

CPC classification number: H04J14/0246 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/025 ,  H04J14/0257 ,  H04J14/0269 ,  H04J14/0271 ,  H04J14/0284 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0075

Abstract: In an automatically switched optical network operating according to a wavelength plan, the wavelengths are assigned to an optical path based on availability, performance and SRS wavelength coupling reduction. First, the wavelengths are grouped in static bins based on their reach versus cost performance, and each bin assumes a ΔQ of a middle wavelength. Then, the bins are moved into subsets of dynamic bins, constructed using bin constraints that account for the particulars of the respective optical path. The path is characterized taking into account the wavelength currently accessing at the end nodes, and the wavelength tandeming through the end nodes. Wavelength selection starts with the bins that satisfy the maximum number of constraints, and the wavelengths are checked sequentially against wavelength constraints; relaxed constraints are also applied when it is not possible to exactly satisfy one or more constraints.

Abstract translation: 在根据波长计划操作的自动切换光网络中，基于可用性，性能和SRS波长耦合减小将波长分配给光路。 首先，波长根据其到达性能与成本性能而分组在静态箱中，并且每个仓都采用中间波长的DeltaQ。 然后，将箱移动到动态箱的子集中，使用解释各个光路的细节的箱约束来构造。 该路径的特征在于考虑到端节点处当前访问的波长，以及通过端节点的波长串联。 波长选择从满足最大限制数量的分支开始，波长根据波长限制顺序进行检查; 当不可能精确地满足一个或多个约束时，也应用松弛约束。

公开(公告)号：US07630635B1

公开(公告)日：2009-12-08

申请号：US10391863

申请日：2003-03-19

Applicant: John Peter Guy ,  Peter David Roorda ,  Alan Glen Solheim ,  Kevan Peter Jones ,  Greg Peter Friesen

Inventor： John Peter Guy ,  Peter David Roorda ,  Alan Glen Solheim ,  Kevan Peter Jones ,  Greg Peter Friesen

IPC: H04J14/00

CPC classification number: H04J14/0246 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/025 ,  H04J14/0257 ,  H04J14/0269 ,  H04J14/0271 ,  H04J14/0284 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0075

Abstract: In an automatically switched optical network operating according to a wavelength plan, the wavelengths are assigned to an optical path based on availability, performance and SRS wavelength coupling reduction. First, the wavelengths are grouped in static bins based on their reach versus cost performance, and each bin assumes a ΔQ of a middle wavelength. Then, the bins are moved into subsets of dynamic bins, constructed using bin constraints that account for the particulars of the respective optical path. The path is characterized taking into account the wavelength currently accessing at the end nodes, and the wavelength tandeming through the end nodes. Wavelength selection starts with the bins that satisfy the maximum number of constraints, and the wavelengths are checked sequentially against wavelength constraints; relaxed constraints are also applied when it is not possible to exactly satisfy one or more constraints.

Abstract translation: 在根据波长计划操作的自动切换光网络中，基于可用性，性能和SRS波长耦合减小将波长分配给光路。 首先，波长根据其到达性能与成本性能而分组在静态箱中，并且每个仓都采用中间波长的DeltaQ。 然后，将箱移动到动态箱的子集中，使用解释各个光路的细节的箱约束来构造。 该路径的特征在于考虑到端节点处当前访问的波长，以及通过端节点的波长串联。 波长选择从满足最大限制数量的分支开始，波长根据波长限制顺序进行检查; 当不可能精确地满足一个或多个约束时，也应用松弛的约束。

公开(公告)号：US20140255026A1

公开(公告)日：2014-09-11

申请号：US14173912

申请日：2014-02-06

Applicant: Peter David Roorda ,  Sheldon McLaughlin

Inventor： Peter David Roorda ,  Sheldon McLaughlin

IPC: H04J14/02

CPC classification number: H04J14/0212 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0058 ,  H04Q2011/0073

Abstract: A colorless, directionless ROADM includes a pair of contentioned add and drop wavelength-selective optical switches, an input wavelength-selective optical switch having one input port, and an output wavelength-selective optical switch having one output port. Unintended input-to-output port couplings, which appear in the “contentioned” add and drop switches, can be mitigated by the input and output wavelength-selective optical switches carrying the through traffic.

Abstract translation: 无色，无方向的ROADM包括一对有吸引力的加和波长选择性光开关，具有一个输入端口的输入波长选择性光开关和具有一个输出端口的输出波长选择光开关。 出现在“有争议”的分插开关中的意外的输入输出端口耦合可以通过带有通过流量的输入和输出波长选择性光交换机来缓解。

公开(公告)号：US08526812B2

公开(公告)日：2013-09-03

申请号：US13491839

申请日：2012-06-08

Applicant: Alan Glen Solheim ,  Peter David Roorda ,  Kevan Peter Jones ,  Greg Peter Friesen

Inventor： Alan Glen Solheim ,  Peter David Roorda ,  Kevan Peter Jones ,  Greg Peter Friesen

IPC: H04B10/08

CPC classification number: H04J14/0241 ,  H04J14/0221 ,  H04J14/0246 ,  H04J14/0257 ,  H04J14/0268 ,  H04J14/0269 ,  H04J14/0283 ,  H04J14/0284

Abstract: The path selection and wavelength assignment to a selected path are performed by mapping the wavelength reach to the demand distribution (agile reach) resulting in a 50-60% increase in the network reach. The network reach is further increased (about 2.2 times) when on-line measured performance data are used for path selection and wavelength assignment. The connections may be engineered/upgraded individually, by optimizing the parameters of the entire path or of a regenerator section of the respective path. The upgrades include changing the wavelength, adjusting the parameters of the regenerator section, controlling the launch powers, mapping a certain transmitter and/or receiver to the respective wavelength, selecting the wavelengths on a certain link so as to reduce cross-talk, increasing wavelength spacing, etc.

公开(公告)号：US20090201576A1

公开(公告)日：2009-08-13

申请号：US12370556

申请日：2009-02-12

Applicant: Maxim BOLSHTYANSKY ,  Gregory Cowle ,  Barrie Keyworth ,  Peter David Roorda

Inventor： Maxim BOLSHTYANSKY ,  Gregory Cowle ,  Barrie Keyworth ,  Peter David Roorda

IPC: H01S3/0941

CPC classification number: H01S3/06754 ,  H01S3/06758 ,  H01S3/1305 ,  H01S3/2383 ,  H01S2301/04

Abstract: A fiber amplifier having two erbium doped fiber coils and a pump laser diode optically coupled, through a fiber array, to a planar lightwave circuit, is described. A photodetector array, a multiport free-space optical isolator, and a strip of thin-film gain flattening filter are attached to a side surface of the planar lightwave circuit, which has a tunable optical power splitter for variably splitting the optical pump power for the laser diode between the two erbium doped fiber coils, and variable tilters for correcting the gain tilt of the amplifier. The variable splitter and the tilters are thermally tunable Mach-Zehnder interferometers.

Abstract translation: 描述了具有两个掺铒光纤线圈的光纤放大器和通过光纤阵列光学耦合到平面光波电路的泵激光二极管。 光电检测器阵列，多端口自由空间光隔离器和薄膜增益平坦化滤光器条附接到平面光波电路的侧表面，该平面光波电路具有可调谐光功率分配器，用于将光泵浦功率可变地分离 两个掺铒光纤线圈之间的激光二极管，以及用于校正放大器的增益倾斜的可变倾角。 可变分流器和倾斜器是热可调谐的马赫 - 曾德尔干涉仪。

公开(公告)号：US07224897B1

公开(公告)日：2007-05-29

申请号：US10424396

申请日：2003-04-28

Applicant: James Slezak ,  Greg Peter Friesen ,  Peter David Roorda

Inventor： James Slezak ,  Greg Peter Friesen ,  Peter David Roorda

IPC: G02F1/00

CPC classification number: H04J14/0227 ,  H04J14/0241 ,  H04J14/0284 ,  H04J14/0287 ,  H04J14/0295 ,  H04L45/22 ,  H04L45/28 ,  H04Q11/0062 ,  H04Q2011/0073 ,  H04Q2011/0081

Abstract: The method of pre-configuring the optical protect paths in an agile photonic network establishes a protection trail for each optical working path that may be set-up in the network. The pre-configuration is based on building an electrical layer (EXC) graph that takes into account all the connection demands in the network, and finding on this EXC graph a plurality of cycles. Next, the EXC cycles are validated at the optical layer, and are further validated against constraints. The method attempts to find an optimal cycles solution, without exhausting all possible variants.

Abstract translation: 在敏捷光子网络中预配置光学保护路径的方法为可以在网络中建立的每个光学工作路径建立保护路径。 预配置基于构建考虑到网络中的所有连接需求的电层（EXC）图，并且在该EXC图上找到多个周期。 接下来，EXC周期在光学层被验证，并且进一步根据约束进行验证。 该方法尝试找到最佳的循环解决方案，而不会耗尽所有可能的变体。

公开(公告)号：US20130209031A1

公开(公告)日：2013-08-15

申请号：US13558802

申请日：2012-07-26

Applicant: Sheldon McLaughlin ,  Peter David Roorda ,  Paul Colbourne ,  Barrie Keyworth

Inventor： Sheldon McLaughlin ,  Peter David Roorda ,  Paul Colbourne ,  Barrie Keyworth

IPC: G02B27/42 ,  G02B6/35

CPC classification number: G02B6/3534 ,  B81B7/04 ,  G02B6/3512 ,  G02B6/3518 ,  G02B6/3546 ,  G02B6/3556 ,  G02B26/0833 ,  G02B27/106 ,  G02B27/1086 ,  G02B27/1093 ,  G02B27/42

Abstract: A multicast optical switch uses a diffractive bulk optical element, which splits at least one input optical beam into sub-beams, which freely propagate in a medium towards an array of directors, such as MEMS switches, for directing the sub-beams to output ports. Freely propagating optical beams can cross each other without introducing mutual optical loss. The amount of crosstalk is limited by scattering in the optical medium, which can be made virtually non-existent. Therefore, the number of the crossover connections, and consequently the number of inputs and outputs of a multicast optical switch, can be increased substantially without a loss or a crosstalk penalty.

公开(公告)号：US07929861B2

公开(公告)日：2011-04-19

申请号：US12750284

申请日：2010-03-30

Applicant: Alan Glen Solheim ,  Peter David Roorda ,  Kevan Peter Jones ,  Greg Peter Friesen

Inventor： Alan Glen Solheim ,  Peter David Roorda ,  Kevan Peter Jones ,  Greg Peter Friesen

IPC: H04B10/08

CPC classification number: H04J14/0241 ,  H04J14/0221 ,  H04J14/0246 ,  H04J14/0257 ,  H04J14/0268 ,  H04J14/0269 ,  H04J14/0283 ,  H04J14/0284

Abstract: The path selection and wavelength assignment to a selected path are performed by mapping the wavelength reach to the demand distribution (agile reach) resulting in a 50-60% increase in the network reach. The network reach is further increased (about 2.2 times) when on-line measured performance data are used for path selection and wavelength assignment. The connections may be engineered/upgraded individually, by optimizing the parameters of the entire path or of a regenerator section of the respective path. The upgrades include changing the wavelength, adjusting the parameters of the regenerator section, controlling the launch powers, mapping a certain transmitter and/or receiver to the respective wavelength, selecting the wavelengths on a certain link so as to reduce cross-talk, increasing wavelength spacing, etc.

Abstract translation: 通过将波长范围映射到需求分布（敏捷达到）来实现对所选路径的路径选择和波长分配，从而导致网络覆盖率增加50-60％。 当在线测量性能数据用于路径选择和波长分配时，网络距离进一步增加（约2.2倍）。 可以通过优化相应路径的整个路径或再生器部分的参数来单独地设计/升级连接。 升级包括改变波长，调整再生器部分的参数，控制发射功率，将某个发射机和/或接收机映射到相应的波长，选择某个链路上的波长，以减少串扰，增加波长 间距等