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        首頁 > 論文 > 激光與光電子學進展 > 56卷 > 16期(pp:162901--1)

        少模光纖受激布里淵散射效應理論研究

        Stimulated Brillouin Scattering in Few-Mode Fiber

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        摘要

        基于波動光學理論和單模光纖受激布里淵散射(SBS)的數學模型,推導了少模階躍折射率光纖中SBS時空演化耦合振幅方程。依據光波模式和聲波模式模場空間分布,計算出不同模式對的聲光耦合系數,進一步得到不同光波模式對組合的布里淵幅度增益譜和相移譜。結果表明:參與SBS過程的聲波主要為低階聲波模式;對于LP01模和LP11模,兩者更傾向于模內的SBS過程,且模內耦合產生的幅度增益以及相移更大;布里淵頻移隨著光波模式階數的增加而減小。

        Abstract

        Herein, numerical results for stimulated Brillouin scattering (SBS) in a step-index few-mode fiber are discussed based on the theory of wave optics and a mathematical model of SBS in a single-mode fiber. The acousto-optic coupling coefficient is calculated and a series of Brillouin gain spectra and phase shift spectra are presented according to the optical and acoustic mode profiles. Numerical results demonstrate that acoustic modes involved in the SBS process are primarily those with low mode orders. Compared to inter-mode SBS in LP01 and LP11 modes, intra-mode SBS is more critical, wherein the latter can obtain larger Brillouin gain and phase shift. In addition, the Brillouin frequency shift evidently decreases as the optical mode order increases.

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        補充資料

        DOI:10.3788/LOP56.162901

        所屬欄目:散射

        基金項目:國家自然科學基金;

        收稿日期:2018-12-25

        修改稿日期:2019-03-14

        網絡出版日期:2019-08-01

        作者單位    點擊查看

        王旭:桂林電子科技大學電子工程與自動化學院, 廣西 桂林, 541004
        秦祖軍:桂林電子科技大學電子工程與自動化學院, 廣西 桂林, 541004廣西自動檢測技術與儀器重點實驗室, 廣西 桂林, 541004
        熊顯名:桂林電子科技大學電子工程與自動化學院, 廣西 桂林, 541004廣西高校光電信息處理重點實驗室, 廣西 桂林, 541004
        張文濤:桂林電子科技大學電子工程與自動化學院, 廣西 桂林, 541004廣西高校光電信息處理重點實驗室, 廣西 桂林, 541004

        聯系人作者:王旭, 秦祖軍(632811603@qq.com, qinzj@guet.edu.cn)

        備注:國家自然科學基金;

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        引用該論文

        Xu Wang, Zujun Qin, Xianming Xiong, Wentao Zhang. Stimulated Brillouin Scattering in Few-Mode Fiber[J]. Laser & Optoelectronics Progress, 2019, 56(16): 162901

        王旭, 秦祖軍, 熊顯名, 張文濤. 少模光纖受激布里淵散射效應理論研究[J]. 激光與光電子學進展, 2019, 56(16): 162901

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