Data exchange device and method for vector mode channel

• Main Authors: ZHANG XIAOMING, YANG BO, CHEN SHUQING, LI YING, LIU JUNMIN, HE YANLIANG, FAN DIANYUAN, CHENG MENGLONG, CHAI GUANGYUE
• Format: Patent
• Language: Chinese; English
• Published: 21.01.2020
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

The invention discloses a data exchange device and method for a vector mode channel. The device comprises a first polarization conversion element, a second polarization conversion element and a thirdpolarization conversion element which are sequentially arranged on the same optical axis, wherein the first polarization conversion element is used for restoring a first vector mode which does not need to carry out data exchange in the three input vector modes as a fundamental mode; the second polarization conversion element is used for carrying out data exchange on a second vector mode and a third vector mode except the fundamental mode in the three input vector modes while maintaining the fundamental mode unchanged; and the third polarization conversion element is used for counteracting a modulation effect brought by the first polarization conversion element, controlling switching of the vector mode channels of the second vector mode and the third vector mode, and making the vector modechannel of the first vecto