Hongxia Liang, Gengxin Zheng, Shaowu Xie, Changsheng Zeng, Yongming Zhong, Yuanyuan Gan, Yongkang Xiong, Yishi Han. Multi-Service Transmission System Based on a Free-Space Optical and Optical Fiber Hybrid Link[J]. Chinese Journal of Lasers, 2024, 51(5): 0506004
- Chinese Journal of Lasers
- Vol. 51, Issue 5, 0506004 (2024)
Fig. 1. Application scenario diagram of multi-service transmission system based on FSO and SMF hybrid link
Fig. 2. Structure diagram of bidirectional dual-output multi-service transmission system
Fig. 3. Electrical spectrum and constellation diagram of the downlink transmission signal. (a) 16PSK signal at 10 GHz; (b) 4QAM-OFDM signal at 60 GHz
Fig. 4. Electrical spectrum, constellation and eye diagrams of the uplink transmission signal. (a) Electrical spectrum and constellation diagram of 16QAM signal at 20 GHz; (b) electrical spectrum and eye diagram of OOK baseband signal
Fig. 5. Relationship between downlink EVM value and received optical power, as well as the constellation diagrams of corresponding points. (a) 16PSK signal at 10 GHz; (b) 4QAM-OFDM signal at 60 GHz
Fig. 6. Relationship between uplink EVM and BER values with received optical power, as well as constellation and eye diagrams of corresponding points. (a) 16QAM signal at 20 GHz; (b) OOK baseband signal
Fig. 7. Relationship between EVM value of the downlink transmission signal and received optical power. (a) 16PSK signal at 10 GHz; (b) 4QAM-OFDM signal at 60 GHz
Fig. 8. Relationship between EVM or BER value of various output signals and FSO transmission distance under different weather conditions. (a) 16PSK signal; (b) 4QAM-OFDM signal; (c) 16QAM signal; (d) OOK signal
| ||||||||||||||||||||||||||||||||||||||||
Table 1. Performance comparison of various output signals under different weather conditions
|
Table 2. Performance comparison of different FSO transmission systems
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20