【正文】 摻鉺光纖光源原理及應(yīng)用技術(shù)研究 摘 要:摻鉺光纖光源是基于自發(fā)輻射放大原理的一種新型寬帶超熒光光源，它有著高輸出功率、低噪聲等優(yōu)點(diǎn)，因此在現(xiàn)代光通信中得到廣泛的應(yīng)用。本文主要研究以摻鉺光纖為增益介質(zhì)的光纖光源研制中的相關(guān)技術(shù)，描述了用于制作摻鉺光纖光源的相關(guān)器件的基本原理、結(jié)構(gòu)，介紹了摻鉺光纖光源中的單程前向、單程后向、雙程前向、雙程后向抽運(yùn)等多種結(jié)構(gòu)。論文的第一部分介紹了纖維光學(xué)的產(chǎn)生背景、發(fā)展現(xiàn)狀、光纖在通信等領(lǐng)域的應(yīng)用現(xiàn)狀、摻鉺光纖光源的發(fā)展及應(yīng)用特色。論文的第二部分對(duì)摻鉺光纖光源研制過程中的主要光電器件從原理及結(jié)構(gòu)等各方面作了描述，介紹了各個(gè)光電器件的性能指標(biāo)。論文的第三部分，介紹了超熒光產(chǎn)生的基本原理和物理模型，并且論述了摻鉺光纖中 Er3+的躍遷特性，同時(shí)對(duì)超熒光光源的四種結(jié)構(gòu)做了簡(jiǎn)單的介紹。論文的第四部分，主要是通過實(shí)驗(yàn)的方法對(duì)實(shí)驗(yàn)室現(xiàn)有的摻鉺光纖光源進(jìn)行研究，分析了結(jié)構(gòu)為單程前向的光纖光源相關(guān)參數(shù)變化對(duì)光源性能的影響。最后，結(jié)合論文中研究情況指出了論文研究的不足之處，并根據(jù)現(xiàn)在國(guó)內(nèi)外的研究現(xiàn)狀對(duì)摻雜光纖光源相關(guān)領(lǐng)域的下一步的目標(biāo)和未來(lái)研究方向進(jìn)行了展望。關(guān)鍵詞：摻鉺光纖光源；放大自發(fā)輻射；C 波段The Principle and Application of Technology for Erbiumdoped Fiber SourceAbstract: Erbiumdoped fiber light, based on the principle of amplified spontaneous emission, is a new type of broadband light source which possesses the advantages of high output power, low noise, etc. Thus, it is widely used in modern optical munication, such as providing optical signal for optical devices measurement, fiber Bragg grating (FBG) sensing system, and fiberoptic gyroscope. Especially in optical munication light source is the indispensable unit. This paper makes a research on the relevant technologies for the production of fiber light source which involves a gain medium of Erbiumdoped fiber (EDF). It is also introduces the basic principles and structures of devices related in producing the erbiumdoped fiber source, in which the structures of singlepass forward pumping(SPF), singlepass backward pumping(SPB), doublepass forward pumping(DPF), doublepass backward pumping(DBF) are put forward. The first part of this paper introduces the background, recent developments, applications of fiberoptics and the characters of Erbiumdoped fiber light. The second part describes principles and structures of the optoelectronic devices in producing the Erbiumdoped fiber light and their performances. The third part introduces the basic principles and the physical models of the ASE。 and discusses ASE transitions among energy levels in the erbiumdoped fiber. Meanwhile, it gives a brief introduction of the four ultrastructure of ASE light source. The fourth part mainly studies the existing erbiumdoped fiber light source through the method of laboratory experiments and analyzes the influences of changes of the relevant parameters of singlepass forward pumping on the light source performance. Finally, the disadvantages of the study are analyzed, and then prospect the future of the doped fiber light source according to the recent developments.Keywords: Erbiumdoped fiber source； Amplified spontaneous emission；Cband 目錄第 1 章 緒論 ........................................................................................................................1 引言 ............................................................................................................................1 國(guó)內(nèi)外的研究現(xiàn)狀 ....................................................................................................1 本論文研究的目的和意義 ........................................................................................3第 2 章 摻鉺光纖光源研究所需的器件及其原理 ............................................................5 摻鉺光纖 ....................................................................................................................5 光纖連接技術(shù) ............................................................................................................6 光纖的處理 .........................................................................................................6 光纖隔離器和環(huán)形器 ................................................................................................7 隔離器 .................................................................................................................7 環(huán)形器 .................................................................................................................7 全光纖波分復(fù)用器 ....................................................................................................8 WDM 工作原理 ..................................................................................................8 WDM 的特征參數(shù) ...........................................................................................9 泵浦源介紹 ..............................................................................................................10 泵浦源的特性 ...................................................................................................10 使用泵浦源的注意事項(xiàng)和防護(hù)措施 ...............................................................11第三章 摻鉺光纖光源基本原理及結(jié)構(gòu) ..........................................................................13 C 波段和 L 波段介紹 ............................................................................................13 超熒光產(chǎn)生的基本原理 ..........................................................................................13 超熒光光源的物理模型 ..........................................................................................14 摻鉺光纖中 ASE 能級(jí)間躍遷基本原理 .................................................................15 放大的自發(fā)輻射產(chǎn)生的原理方程及線寬 ..............................................................16 超熒光光源的四種結(jié)構(gòu) ..........................................................................................18第四章 摻鉺光纖光源的 C 波段的研究 .........................................................................19 實(shí)驗(yàn)裝置 ..................................................................................................................19 實(shí)驗(yàn)數(shù)據(jù)分析及結(jié)論 ..............................................................................................19第五章 總結(jié) ......................................................................................................................23參考文獻(xiàn) .......................................................................................