| Autor: |
Ming-xiong DUAN, Jing ZHU, He LU, Guang-zhe WU, Wei-hua LI, Chao HUANG, Han LONG, Jian-jun WU |
| Jazyk: |
čínština |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Guangtongxin yanjiu, Vol 00, Iss 03, Pp 33-37 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1005-8788 |
| DOI: |
10.13756/j.gtxyj.2021.03.008&lang=zh |
| Popis: |
Aiming at the influence of matched filter (e.g.root raised cosine filter) on the coherent optical fiber communication system, the effect of roll-off factor (Rf) are studied under different value of optical bandwidth, residual dispersion and nonlinearity. Simulations are carried out for 256 Gbit/s Polarization Division Multiplexing-16 Quadrature Amplitude Modulation (PDM-16QAM) signals when the optical bandwidth are 33, 50 and 100 GHz, the residual dispersion ranging from-300 to 300 ps/nm and launched power ranging from-3 to 4 dBm in a 1 200 km optical fiber link. The simulations show that a good transmission performance can be achieved for limited optical bandwidth system when Rfis set to the value of (1+Rf) B (Bis the Baud rate of the signal) that similar to the system optical bandwidth. When optical bandwidth near or exceed 2 times Baud rate of signals, Rfshould be set between 0.2 and 0.5 to achieve a better transmission performance. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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