Assessment of the effective performance of DPSK vs. OOK in satellite-based optical communications

被引：0
|
作者：
Maho, A. [1 ]
Faugeron, M. [1 ]
Le Kernec, A. [1 ]
Elayoubi, K. [2 ]
Sotom, M. [1 ]
机构：
[1] Thales Alenia Space, 26 Av J-F Champollion, Toulouse, France
[2] IRT St Exupery, 3 Rue Tarfaya, Toulouse, France
来源：
INTERNATIONAL CONFERENCE ON SPACE OPTICS-ICSO 2018 | 2018年 / 11180卷
关键词：
Free Space Optical (FSO) communications; OOK; DPSK; Optical Inter-Satellite Link (OISL); optical feeder link; IMPACT;
D O I：
10.1117/12.2536128
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper reports on the assessment of the communication performance of DPSK- and OOK-based free-space optical (FSO) links in satellite-based applications, including LEO downlinks, LEO inter-satellite links, and feeder links for GEO Satellites. The performance is assessed by means of simulations as well as transmission experiments at 10 Gbps. The impact of optical filter bandwidth, optical delay-line-interferometer accuracy, frequency offset between transmitter laser and receiver, is quantified. OOK performance critically depends on transmitter extinction ratio, and proves robust to Doppler-induced frequency offsets. DPSK is sensitive to any laser wavelength drift and offset with the DLI response. Nevertheless, compensation of this drift is considered manageable, making it possible to maintain the 3dB advantage of DPSK vs. OOK in practical use conditions.
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页数：6
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