Exploration of the application of free-space optical communication technology interrestrial backhaul

doi:10.12267/j.issn.2096-5931.2023.10.007

Abstract

Abstract:

Free-space optical communication refers to a communication technology for laser transmission in free space. Combined with the convenience and mobility of wireless communication, it uses the band and technology of optical fiber communication to solve the transmission problem due to geographical terrain restrictions or temporary communication needs. This paper introduces the characteristics of terrestrial free-space optical communication technology, and provides some commercial applications of this technology.

Key words: free-space optical communication, optical fiber communication, wireless communication, terrestrial backhaul application

CLC Number:

TN929.12

WEI Buzheng, WANG Guangquan, SHEN Shikui, ZHANG He, ZHU Bin, WANG Zelin. Exploration of the application of free-space optical communication technology interrestrial backhaul[J]. Information and Communications Technology and Policy, 2023, 49(10): 44-53.

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URL:

http://ictp.caict.ac.cn/EN/10.12267/j.issn.2096-5931.2023.10.007

http://ictp.caict.ac.cn/EN/Y2023/V49/I10/44

Figures/Tables 11

	瑞利散射	Mie氏散射^[8]	非选择性或几何散射
散射颗粒尺寸r和波长λ的关系	r≤λ,Q(λ)~λ^-4	r≈λ,Q(λ)~λ^-1^.⁶ 到Q(λ)~λ⁰	r≥λ,Q(λ)~λ⁰
散射类型	空气分子、霾	霾、雾、气溶胶	雨、雪、雾、冰雹

天气	雨	雪	雾
衰减系数/dB/km	k×r^α	α×S^b	$3.91 V λ 550 n m - q$
字母含义	k:1.58 α:0.63	α、b为波长方程,与雪的干湿有关 S为降雪速度	V:能见度 λ:波长 q:粒子分布系数

天气	雨	雪	雾
衰减系数/dB/km	k×r^α	α×S^b	$3.91 V λ 550 n m - q$
字母含义	k:1.58 α:0.63	α、b为波长方程,与雪的干湿有关 S为降雪速度	V:能见度 λ:波长 q:粒子分布系数

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