公开(公告)号：US20160047991A1

公开(公告)日：2016-02-18

申请号：US14821034

申请日：2015-08-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hamid Mehrvar

IPC: G02B6/35 ,  H04Q11/00

CPC classification number: H04Q11/0005 ,  H04Q2011/0039 ,  H04Q2011/005 ,  H04Q2011/0056

Abstract: An optical switch comprises a first stage comprising N optical inputs, wherein N is an integer power of 2 and is 16 or greater, and N first sub-switches, wherein each first sub-switch comprises 1 of the optical inputs and 4 first outputs, and a second stage coupled to the first stage and comprising 16 second sub-switches, wherein each second sub-switch comprises M second inputs and M second outputs, and wherein M is equal to N/4.

Abstract translation: 一种光学开关包括：第一级，包括N个光学输入，其中N是2并且是16或更大的整数幂，以及N个第一子开关，其中每个第一子开关包括1个光输入和4个第一输出， 以及耦合到所述第一级并且包括16个第二子开关的第二级，其中每个第二子开关包括M个第二输入和M个第二输出，并且其中M等于N / 4。

公开(公告)号：US09215028B2

公开(公告)日：2015-12-15

申请号：US14021999

申请日：2013-09-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hamid Mehrvar ,  Dominic Goodwill

IPC: H04Q11/00 ,  H04J14/02 ,  H04L12/721

CPC classification number: H04J14/0212 ,  H04J14/0217 ,  H04L45/62 ,  H04Q11/0005 ,  H04Q2011/0016

Abstract: System and method embodiments are provided for a photonic switch chip for scalable reconfigurable optical add/drop multiplexer (ROADM). The embodiments enable a low-cost pay as you grow ROADM that scales as both the number of wavelengths added or dropped increases and the size of the node in terms of number of directions increase. In an embodiment, a ROADM includes an M degree optical cross-connect tandem component comprising M wavelength selective switch (WSS) coupled to M wavelength division multiplexing (WDM) node interfaces, where M is equal to a number of input or output directions; a routing stage wavelength selector switch (WSS) comprising a plurality of WSSs connected to the tandem component; and an N by M combiner/distributor for add/drop coupled to the routing stage WSS, wherein the combiner/distributor comprises one or more photonic integrated circuit (PIC) chips, and wherein N is a maximum number of add/drop wavelengths.

Abstract translation: 提供了用于可伸缩可重配置光分插复用器（ROADM）的光子开关芯片的系统和方法实施例。 当您增长ROADM时，这些实施方案可以实现低成本支付，随着路由数量的增加，节点数量的增加，节点数量的增加也会增加。 在一个实施例中，ROADM包括M度光交叉串联组件，包括耦合到M个波分复用（WDM）节点接口的M个波长选择开关（WSS），其中M等于多个输入或输出方向; 路由级波长选择器开关（WSS），包括连接到串联组件的多个WSS; 以及一个N乘M组合器/分配器，用于对路由级WSS进行加/减耦合，其中组合器/分配器包括一个或多个光子集成电路（PIC）芯片，并且其中N是最大数量的加/减波长。