公开(公告)号：US20200059314A1

公开(公告)日：2020-02-20

申请号：US16663521

申请日：2019-10-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqiang JI ,  Shengmeng FU ,  Yanbo LI ,  Lewei ZHANG ,  Li ZENG

IPC: H04J14/02 ,  H04B10/60 ,  H04B10/50 ,  G02B6/293

Abstract: A reconfigurable optical add/drop multiplexer includes N input ports, N output ports, M add ports and M drop ports. Each of the N input ports and each of the M add ports is respectively connected to one first polarizer. Each of the N output ports and each of the M drop ports is respectively connected to one second polarizer. A first end of the first polarizer is connected to a second end of the first polarizer, forming a loop including the first polarizer. A first end of the second polarizer is connected to a second end of the second polarizer, forming a loop including the second polarizer. An annular waveguide array is between a loop LIi and a loop LOj. A first polarizer included in the loop LIi is connected to an ith input port. A second polarizer included in the loop LOj is connected to a jth output port.