US 12,326,621 B2
Method and system for generating a robust higher-order POINCARÉ sphere polarization state
Yahong Chen, Suzhou (CN); Zhen Dong, Suzhou (CN); Xi Sun, Suzhou (CN); Shilei Tan, Suzhou (CN); Fei Wang, Suzhou (CN); and Yangjian Cai, Suzhou (CN)
Assigned to SOOCHOW UNIVERSITY, Suzhou (CN)
Appl. No. 18/011,182
Filed by SOOCHOW UNIVERSITY, Suzhou (CN)
PCT Filed Dec. 30, 2021, PCT No. PCT/CN2021/143110
§ 371(c)(1), (2) Date Dec. 22, 2022,
PCT Pub. No. WO2022/265225, PCT Pub. Date Dec. 22, 2022.
Claims priority of application No. 202111580731.4 (CN), filed on Dec. 22, 2021.
Prior Publication US 2024/0231131 A1, Jul. 11, 2024
Int. Cl. G02F 1/01 (2006.01)
CPC G02F 1/0136 (2013.01) 10 Claims
OG exemplary drawing
 
1. A method for generating a robust higher-order Poincaré sphere polarization state, comprising steps of:
S1: loading vortex phases into fully coherent vector beams for modulating them into left-handed circularly polarized light and right-handed circularly polarized light of a higher-order Poincaré sphere;
S2: synthesizing the left-handed circularly polarized light and the right-handed circularly polarized light into vector polarized light on the higher-order Poincaré sphere, and generating a polarization matrix of the higher-order Poincaré sphere through adjustment;
S3: reducing the degree of spatial coherence of the vector polarized light, performing shaping to obtain a random electromagnetic beam, and simultaneously extracting polarization information in the polarization matrix and transferring the polarization information into a spatial correlation tensor of the random electromagnetic beam; and
S4: transmitting the random electromagnetic beam to a far field, wherein in the far field, the polarization information is transferred from the spatial correlation tensor into a polarization matrix of the random electromagnetic beam, to obtain a robust higher-order Poincaré sphere polarization state.