High-sensitivity multi-channel DPSK system with real-time phase lock controller for free-space optical communication | |
Gao, Duorui2,3; Li, Tianlun1; Xie, Zhuang2,3; Meng, Jiacheng3; Jia, Shuaiwei2,3; Bai, Zhaofeng3; Wang, Wei3; Xie, Xiaoping2,3 | |
刊名 | FRONTIERS IN PHYSICS |
2022-08-29 | |
卷号 | 10 |
关键词 | free-space optical communication differential phase shift keying delay line interferometer phase lock controller wavelength division multiplexing |
ISSN号 | 2296-424X |
DOI | 10.3389/fphy.2022.971919 |
产权排序 | 1 |
英文摘要 | To overcome the power jitters in satellite-to-ground communications caused by atmospheric turbulence, a type of DPSK free-space communication system, assisted by a self-designed real-time phase lock controller, has been established. The system can effectively compensate for power swings in communication links and hence achieve high sensitivity. The wavelength division multiplexing technique is applied to a four-channel DPSK system to provide greater link capacity. With the data rate of a single channel as 2.5 Gbps and unencoded BER as 1 x 10(-3), reception sensitivity has been obtained at -53.58 dBm (13.69 photons/bit), -53.59 dBm (13.66 photons/bit), -53.61 dBm (13.59 photons/bit), and -53.63 dBm (13.53 photons/bit) for each independent channel, respectively. The gap between our sensitivity result and the theoretical limit has narrowed to about -3.5 dB. Simultaneously, the DPSK receiver, with our self-designed phase lock controller, has stabilized reception of optical power fluctuations that range from 0 to 40 dB. Additionally, the impact of a four-wave mixing effect on multi-channel system performance has been investigated in detail. Our experimental results present a novel solution for the superior performance of free-space communication links. |
语种 | 英语 |
出版者 | FRONTIERS MEDIA SA |
WOS记录号 | WOS:000862930800001 |
内容类型 | 期刊论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/96162] |
专题 | 光子网络技术研究室 |
通讯作者 | Wang, Wei; Xie, Xiaoping |
作者单位 | 1.Xi An Jiao Tong Univ, Sch Elect Sci & Engn, Key Lab Phys Elect & Devices, Minist Educ, Xian, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian, Peoples R China |
推荐引用方式 GB/T 7714 | Gao, Duorui,Li, Tianlun,Xie, Zhuang,et al. High-sensitivity multi-channel DPSK system with real-time phase lock controller for free-space optical communication[J]. FRONTIERS IN PHYSICS,2022,10. |
APA | Gao, Duorui.,Li, Tianlun.,Xie, Zhuang.,Meng, Jiacheng.,Jia, Shuaiwei.,...&Xie, Xiaoping.(2022).High-sensitivity multi-channel DPSK system with real-time phase lock controller for free-space optical communication.FRONTIERS IN PHYSICS,10. |
MLA | Gao, Duorui,et al."High-sensitivity multi-channel DPSK system with real-time phase lock controller for free-space optical communication".FRONTIERS IN PHYSICS 10(2022). |
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