Study on the Isolation of Optical Antennas in Laser Communication

Yehui MA; Junhua YAN; Chao ZHANG; Jianfeng LIU

doi:10.3969/j.issn.1009-8518.2024.02.008

Spacecraft Recovery & Remote Sensing, Volume. 45, Issue 2, 83(2024)

Study on the Isolation of Optical Antennas in Laser Communication

Yehui MA1...2, Junhua YAN1,2, Chao ZHANG1,2,3 and Jianfeng LIU3 |Show fewer author(s)

¹Key Laboratory of Space Photoelectric Detection and Perception, Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China

²College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China

³Beijing Institute of Space Mechanics & Electricity, Beijing 100094, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(11)

Fig. 1. [in Chinese]

Fig. 2. [in Chinese]

Fig. 3. [in Chinese]

Fig. 4. [in Chinese]

Fig. 5. [in Chinese]

Fig. 6. [in Chinese]

Fig. 7. [in Chinese]

Table 1. Parameters and indicators of optical antennas

View table

View in Article

Table 1. Parameters and indicators of optical antennas

天线形式	波长/nm	口径/mm	放大倍率	波像差	斯特列尔比
同轴	1 550	50	5	中心视场：0.001 7λ	0.999
同轴	1 550	50	5	边缘视场（±1.5 mrad）：0.004 0λ	0.999
离轴两反	1 550	50	5	中心视场：0.002 0λ	0.999
离轴两反	1 550	50	5	边缘视场（±1.5 mrad）：0.005 4λ	0.998

Table 2. Parameter setting for the ABg scattering model
View table
View in Article
Table 2. Parameter setting for the ABg scattering model
光学表面 A B g 粗糙度/nm
主次镜 2.025 8×10⁻⁵ 5.462 1×10⁻⁶ 2.256 6 0.952
库德镜 8.226 7×10⁻⁶ 1.200 6×10⁻⁶ 2.406 9 0.833

Table 3. Comparison of the isolation of two optical antennas
View table
View in Article
Table 3. Comparison of the isolation of two optical antennas
光学天线类型进入探测器杂散光数目光通量/W 隔离度/dB
同轴 77 253 1.804×10^-2 −17.44
离轴两反 3 352 1.018×10^-8 −79.92

Table 4. Relationship between primary mirror eccentricity, incidence angle and isolation
View table
View in Article
Table 4. Relationship between primary mirror eccentricity, incidence angle and isolation
主镜偏心/mm 入射角/（°）隔离度/dB
54 12.68 −79.28
60 14.04 −79.47
80 18.43 −79.87
100 22.62 −80.17
120 26.57 −80.36
140 30.26 −80.37
160 33.69 −80.42
180 36.87 −80.57
200 39.81 −80.58

Tools

Get Citation

Copy Citation Text

Yehui MA, Junhua YAN, Chao ZHANG, Jianfeng LIU. Study on the Isolation of Optical Antennas in Laser Communication[J]. Spacecraft Recovery & Remote Sensing, 2024, 45(2): 83

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites