Study of the Coupling Efficiency of Spatial Light into Single-mode Multi-core Fiber

FAN Xue-bing;WANG Chao;TONG Shou-feng;NAN Hang;GUAN Shu;HAO Shi-cong;JIANG Hui-lin

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2017, Vol. 38 ›› Issue (12) : 2414-2422. DOI: 10.3969/j.issn.1000-1093.2017.12.015
Paper

Study of the Coupling Efficiency of Spatial Light into Single-mode Multi-core Fiber

  • FAN Xue-bing1,2,WANG Chao1,2,TONG Shou-feng1,2,NAN Hang1,2,GUAN Shu1,2, HAO Shi-cong1,2, JIANG Hui-lin1,2
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Abstract

In space laser communication, the coupling efficiency of spatial light into single-mode fiber is a key parameter of studying the performance of the system receiver. In order to reduce the difficulty of spatial light coupling into single-mode fiber, a single-mode multi-core fiber is used to receive signal light, a coupling efficiency model is established by taking seven-core fiber for example, and the effect of numericalaperture on the coupling efficiency of seven-core fibers with different fiber core arrangements is analyzed. The coupling efficiency of seven-core fiber increases first and then decreases with the increase in numerical aperture; the coupling efficiency of fiber which fiber cores are arranged in regular hexagon is higher than that which fiber cores are arranged in line. The coupling efficiencies in the presence of tilt, defocus and random angular jitter are studied. In the presence of lateral offset, the coupling efficiency of seven-core fiber has a periodic change. When the lateral offsets are 10 μm, 15 μm and 17 μm, the coupling efficiencies of seven-core fiber are about 14.4%, 39.6% and 36.9% higher than those of single-core fiber with the same core area, respectively. When the axial offset is 0.1 mm, the coupling efficiency of seven-core fiber is about 12.9% higher than that of single-core fiber with the same core area. When the standard deviation of random jitter amplitude is 6μm, the coupling efficiency of seven-core fiber is about 7% higher than that of single-core fiber with the same core area. Accordingly, the multi-core fiber inhibits tilt, defocus and random angular jitter. Key

Key words

communicationtechnology / free-spaceopticalcommunication / single-modesingle-corefiber / single-modemulti-corefiber / couplingefficiency

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FAN Xue-bing,WANG Chao,TONG Shou-feng,NAN Hang,GUAN Shu, HAO Shi-cong, JIANG Hui-lin. Study of the Coupling Efficiency of Spatial Light into Single-mode Multi-core Fiber. Acta Armamentarii. 2017, 38(12): 2414-2422 https://doi.org/10.3969/j.issn.1000-1093.2017.12.015

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第38卷第12期
2017年12月兵工学报ACTA
ARMAMENTARIIVol.38No.12Dec.2017

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