Identical metasurface simultaneously creates arbitrary assembly of polarization states via geometrical-scaling-induced phase modulations

Author(s):  
Ru-Wen Peng ◽  
Ya-Jun Gao ◽  
Mu Wang
2020 ◽  
Vol 10 (3) ◽  
Author(s):  
Ya-Jun Gao ◽  
Xiang Xiong ◽  
Zhenghan Wang ◽  
Fei Chen ◽  
Ru-Wen Peng ◽  
...  

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
Ran Yang ◽  
Cheng-Jie Zhang ◽  
Jian Li ◽  
Yan-Xiao Gong ◽  
Shi-Ning Zhu

2021 ◽  
Author(s):  
Xue‐Feng Wang ◽  
Xiao‐Jie Sun ◽  
Yuan‐Xing Liu ◽  
Wei Wang ◽  
Bao‐Xi Kan ◽  
...  

2016 ◽  
Vol 37 (4) ◽  
Author(s):  
Manisha Bharti ◽  
Ajay K. Sharma ◽  
Manoj Kumar

AbstractThis paper focuses on increasing the number of subscribers in optical code-division multiple access (OCDMA) system by using one of the features of light signal that it can be propagated in two polarization states. The performance of two-dimensional (2D) OCDMA system based on wavelength-time coding scheme by adding polarization state is investigated at varying data rates from 1 GHz to 6 GHz and for various modulation formats. It is reported that with increase in data rate of system, the performance of the system deteriorates due to polarization mode dispersion. Non-return to-zero (RZ), return to-zero (RZ), carrier suppressed return-to-zero (CSRZ) and differential phase shift keying (DPSK) modulation formats are simulated for a single user system with polarization. Investigations reveal that differential phase shift keying (DPSK) modulation format suits best to the proposed system and exhibit the potential to improve the flexibility of system for more number of users. The investigations are reported in terms of Q-factor, BER, received optical power (ROP) and eye diagrams.


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