本文選題：多芯光纖　切入點(diǎn)：溝槽輔助結(jié)構(gòu)　出處：《北京郵電大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：光纖通信技術(shù)作為第三次技術(shù)革命中最重要的技術(shù)之一,近30年來在全球范圍內(nèi)得到了廣泛的使用。隨著時(shí)分復(fù)用(TDM)、波分復(fù)用(WDM)、偏振復(fù)用(PDM)、多級調(diào)制(multi-level modulation)技術(shù)及相關(guān)器件的日趨完善,光纖通信技術(shù)得到了長足的發(fā)展,深刻改變了人類的生活和工作方式。 本文從光纖出發(fā),闡述和探究了光纖通信系統(tǒng)的發(fā)展歷程,了解了研究人員在不斷提高光纖傳輸容量上取得的突破。在充分肯定這些成就的同時(shí),也指出了目前光纖所面臨的瓶頸：其容量已逐漸逼近理論上限,信息傳輸速率難以得到進(jìn)一步提高。為了進(jìn)一步提高光纖的傳輸容量,我們著重研究了在近年來引起廣泛重視的多芯光纖。 本文以溝槽輔助型七芯光纖為研究對象,對光纖的彎曲損耗和纖芯之間的能量串?dāng)_做了詳盡的理論分析,通過數(shù)值計(jì)算著重討論了溝槽輔助結(jié)構(gòu)對光纖截止波長、彎曲損耗、色散等傳輸性能指標(biāo)的影響及其對纖芯之間能量串?dāng)_的影響。利用計(jì)算結(jié)果指導(dǎo)設(shè)計(jì)滿足截止波長和色散標(biāo)準(zhǔn)的低彎曲損耗、低串?dāng)_、高纖芯密度的多芯光纖,分析了多芯光纖在纖芯密度上的顯著優(yōu)勢,為多芯光纖投入實(shí)際應(yīng)用提供了理論上的幫助。
[Abstract]:Optical fiber communication technology is one of the most important technologies in the third technological revolution. In the past 30 years, it has been widely used in the world. With the development of TDM, WDM, PDM, multi-level modulations and related devices, optical fiber communication technology has made great progress. A profound change in the way people live and work. In this paper, the development course of optical fiber communication system is expounded and explored, and the breakthrough made by researchers in increasing the transmission capacity of optical fiber is understood. At the same time, these achievements are fully affirmed. It is pointed out that the capacity of optical fiber is approaching the theoretical upper limit gradually, and the information transmission rate is difficult to be further improved. In order to further improve the transmission capacity of optical fiber, We focus on the research of multi-core fiber which has attracted much attention in recent years. In this paper, the groove-assisted seven-core fiber is taken as the research object, the bending loss and the energy crosstalk between the fibers are analyzed in detail, and the cutoff wavelength and the bending loss of the groove-assisted structure to the fiber are discussed by numerical calculation. The influence of dispersion and other transmission performance index and its influence on the energy crosstalk between fiber cores. The low bending loss, low crosstalk and high core density multi-core fiber with low bending loss, low crosstalk and high core density are designed according to the calculation results, which meet the cut-off wavelength and dispersion standard. The advantages of multi-core fiber in core density are analyzed, which provides theoretical help for practical application of multi-core fiber.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN929.11

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 陳偉;李詩愈;王彥亮;王冬香;羅文勇;黃文俊;;特種光纖技術(shù)及其發(fā)展趨勢[J];中國新通信;2010年17期

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本文編號：1588376