Chinese Optics, Volume. 16, Issue 5, 1137(2023)
Isolation of single wavelength laser communication terminals
Fig. 3. The relationship between
Fig. 7. The luminous flux of the receiving surfaces under different surface roughnesses. (a) 3 nm; (b) 6 nm; (c) 9 nm; (d) 12 nm; (e) 15 nm
Fig. 9. Matlab curve of end machine’s isolation with surface roughness
Fig. 10. The luminous flux of the receiving surface with different contamination levels. (a)
Fig. 12. Matlab curve of isolation with different contamination levels
Fig. 13. Two-variable analysis diagram of laser communication terminal isolation
Fig. 15. Terminal’s receiving surface light flux with surface roughness of 0.5 nm
Table 1. ABg model parameters for different surface roughnesses
View tableView in ArticleTable 1. ABg model parameters for different surface roughnesses
表面粗糙度（nm） A B g 3 4.2365×10−5 4.4415×10−5 1.55 6 1.6940×10−4 4.4415×10−5 1.55 9 3.8130×10−4 4.4415×10−5 1.55 12 6.7787×10−4 4.4415×10−5 1.55 15 1.0580×10−3 4.4415×10−5 1.55
Table 2. ABg model parameters of the optical antenna with different surface roughnesses
View tableView in ArticleTable 2. ABg model parameters of the optical antenna with different surface roughnesses
表面粗糙度（nm） A B g 主镜 3 3.0643×10−5 4.4415×10−5 1.55 6 1.2257×10−4 4.4415×10−5 1.55 9 2.7579×10−4 4.4415×10−5 1.55 12 4.8737×10−4 4.4415×10−5 1.55 15 7.6152×10−4 4.4415×10−5 1.55 次镜 3 4.0426×10−5 4.4415×10−5 1.55 6 1.6171×10−4 4.4415×10−5 1.55 9 3.6384×10−4 4.4415×10−5 1.55 12 6.4682×10−4 4.4415×10−5 1.55 15 1.0106×10−3 4.4415×10−5 1.55
Table 3. ABg model parameters for different contamination levels
View tableView in ArticleTable 3. ABg model parameters for different contamination levels
表面清洁度CL A B g 200 7.237×10−6 6.102×10−5 1.5 400 1.685×10−4 6.102×10−5 1.5 600 1.271×10−3 6.102×10−5 1.5 800 5.769×10−3 6.102×10−5 1.5
Table 4. Optical design indexes
View tableView in ArticleTable 4. Optical design indexes
指标 参数 倍率 10× 入瞳直径/mm 75 设计波长/nm 1550 最大接收视场/mrad 5 激光发射功率/dBm 33 接收器灵敏度 −45 dBm@10 Gbps
Table 5. Test results of isolation
View tableView in ArticleTable 5. Test results of isolation
1 2 3 平均值 发射功率/dBm 28 29 30 通信接收功率/dBm −49.8 −49.0 −47.8 隔离度/dB 77.8 78.0 77.8 77.86
Get Citation
Copy Citation Text
Wei-rao GAO, Ke-yan DONG, Lun JIANG. Isolation of single wavelength laser communication terminals[J]. Chinese Optics, 2023, 16(5): 1137
Category: Original Article
Received: Dec. 12, 2022
Accepted: Apr. 4, 2023
Published Online: Oct. 27, 2023
The Author Email:
