Title:
OPTICAL MULTI INPUT MULTI OUTPUT (MIMO) DEMULTIPLEXER
Document Type and Number:
Japanese Patent JP2023051812
Kind Code:
A
Abstract:
To provide a multi-stage optical MIMO demultiplexer.SOLUTION: An optical polarization demultiplexer 200 is formed by: a polarization splitter and rotator (PBSR) 202; two 50/50 couplers 204 and 206; and two phase shifters 208 and 210. The two phase shifters 208 and 210 are controlled by another control signals Φ1212 and Φ2214. Each of the two phase shifters 208 and 210 is a differential phase shifter. The phase shifter 208 is mounted as an interferometer having two individual phase shift elements 208a and 208b that adjust an optical phase to one direction with one arm of an interferometer, and adjust an optical phase to an opposite direction with the other arm. The phase shifter 210 also has the same structure.SELECTED DRAWING: Figure 2
Inventors:
CHRISTOPHER R DOERR
Application Number:
JP2022152587A
Publication Date:
April 11, 2023
Filing Date:
September 26, 2022
Export Citation:
Assignee:
ALOE SEMICONDUCTOR INC
International Classes:
H04B10/67; G02F1/01; G02F2/00; H04J14/06
Attorney, Agent or Firm:
Toru Ishikawa