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各種光纖接入技術(shù)-畢業(yè)論文外文翻譯(留存版)

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【正文】 the future ATMbased broadband services based on the same time, support for lowcost narrowband services, the application provides the user with maximum flexibility. Access Server PathStar access server is AnyMedia access system features and advantages of packet switching technology program requirements developed by the innovative products. PathStar Access Server is built on the AIP platform access interfaces, such as the Inferno operating system and the operating system such as Bell Line Card Lucent39。s wish for many physical properties, as its refractive index stability, and easy to control, in a silicon chip, passive ponents and lasers and sensors can be integrated in the movable support shelf, with SioB technology manufacturing optical density of integrated circuits are adequate for singlechip processing can produce a large number of chips, a variety of functions have been integrated on the chip. SioB technology has been widely used in integrated lasers, photoelectric sensor, no light guide fiber splitter, WDM filter, no light optical fiber and ball lens attached body, rotating mirror, optical stee 11 ring devices and electrical product metals. From the mid90s, integrated photovoltaic technology started to apply munications work, such as Dragone router, a merger in the DWDM system and routing the optical wavelength channel IC has been developed from the 8channel 72channel, while the micro motor system (MEMS) is a small solid mechanical components, micromotor system can manufacture epitaxial growth, the pattern formation and etching processing, integrated circuit manufacturing technology in the substrate to plete, confident in the 21st century, the silicon microelectromechanical systems optical field of innovative technology, used in the near future, nextgeneration optical work. 2. Access Network The socalled access work is the exchange between the Bureau to the user terminal equipment, all machine lines (the physical location of the access work), in which the backbone system for traditional cable and fiber optic cable, usually several kilometers long。美國依然是世界最大的寬帶接入市場,總用戶數(shù)超過 3000 萬。 接入網(wǎng)絡(luò)正越來越多的光纖到用戶的共同趨勢。數(shù)據(jù)通信網(wǎng)絡(luò)為邊緣提供工具,支持的TCP / IP 的融合語音和數(shù)據(jù)包網(wǎng)所有必要的配置,而且作為一個局域網(wǎng)( LAN)和廣域網(wǎng)( WAN)連接方式 大量機管局實物 IAESS 傳統(tǒng)網(wǎng)絡(luò)中使用的變換復(fù)位。 4 接入系統(tǒng) AnyMedia 接入系統(tǒng) AnyMedia 是一個真正的全球性產(chǎn)品,它支持所有相關(guān)的國際標(biāo)準(zhǔn),該系統(tǒng)結(jié)合了北美 TR303/TR08 交換接口以及國際通用 口。 典型的結(jié)構(gòu)作為電纜干線傳輸網(wǎng)絡(luò)為中心的前端電視明星或 HFC CATV電纜,一直延伸到城市的市中心辦公區(qū)和郊區(qū)的居民和農(nóng)村縣,在光節(jié)點許多形成。它已被廣泛反映主干通信。缺點是,目前不能傳輸超過 2048kbps,傳輸距離在 10公里 6的信息有限。布線系統(tǒng)可能是電纜和光纜一般為幾百米長,常常引用幾米到十幾米長的線路。接入系統(tǒng)主要完成三大功能:高速傳輸,復(fù)用 /路由,網(wǎng)絡(luò)的擴展。目前,接入系統(tǒng)的主流技術(shù), ADSL 技術(shù)可以雙絞銅線傳輸經(jīng)濟(jì)每秒幾兆比特的信息,即支持傳統(tǒng)的語音服務(wù),而且還支持面向數(shù)據(jù)的因特網(wǎng)接入位,理事會結(jié)束的 ADSL多路復(fù)用訪問的數(shù)據(jù)流量,路由的分組網(wǎng)絡(luò),語音流量將傳送到 PSTN, ISDN或其它分組網(wǎng)絡(luò)。 ITU T 的要求,接入網(wǎng)絡(luò),是指商業(yè)接口( SNI)和相關(guān)用戶網(wǎng)絡(luò) 接口( UNI)的實體之間的轉(zhuǎn)移(如線路設(shè)施和傳輸設(shè)施)組成,為數(shù)據(jù)傳輸 3 的必要的服務(wù)接觸傳輸系統(tǒng)的執(zhí)行能力,它可以通過 Q3 接口配置和管理。 4 ADSL 的非對稱密鑰用于交互式寬帶傳輸服務(wù)。在接入網(wǎng),光纖接入也將成為發(fā)展重點。起價通過傳統(tǒng)的同軸電纜有線電視信號給最終用戶光節(jié)點。 AnyMedia系統(tǒng)集成能力,寬帶數(shù)據(jù)和視頻服務(wù)可以整合在一起,作為該系統(tǒng)的或現(xiàn)有的電話和寬帶網(wǎng)絡(luò)覆蓋的一部分,讓更多的便捷服務(wù),方案設(shè)計和更高的性價比。隨著向基于分組的結(jié)構(gòu)演變, PathStar 接入服務(wù)器是一種非常經(jīng)濟(jì)的解決方案,是一種自然的進(jìn)步。 FTTC 光纖到戶將逐步發(fā)展的方向,而氟化烴節(jié)點將逐步從大至小的節(jié)點發(fā)展,然后逐步推進(jìn)到分支點纖維( FTTT)甚至實現(xiàn) F 托特。美國 FOC 將寬帶業(yè)務(wù)定位為 2020— 2020年的 六大目標(biāo)之一,事實上寬帶接入正成為美國普遍服務(wù)的下一個目標(biāo)。 wiring system may be cable and optical cable generally a few hundred meters in length。s Inter access software and technology integration as a whole. PathStar access server to meet the need for integrated voice and data work access needs of users, the traditional circuitswitched functions and features with advanced pack。s last mile work access part is the most promising part of a substantial increase in work performance. On the local loop work this is a bottleneck on the 100 million users worldwide access lines, its function is limited to impede the development of business users, while the other end with subscriber line highperformance equipment in sharp contrast. As electronic technology and the rapid development of optoelectronic technology, digital electronic system (from a personal puter to a work switch or router) and information transmission equipment performance are in the fast and steady growth, as the bottleneck to solve this ring circuit provides a broad development prospects. As the copper local loop is still analog signal transmission, people are still using the narrow radio channels across the crowded radio spectrum. How to access the current bottleneck in largescale widening work of the world39。 就光纖接入網(wǎng),特別是光纖到駐地 (FTTP)或光纖到家 (FTTH)而言,全球已經(jīng)開始進(jìn)入啟動階段,僅美國就有 270 個 FTTP 項目,多半是地方政府、公共公司、房地產(chǎn)開發(fā)商和非主導(dǎo)電信運營商的項目。但是,光纖到戶將是一個漫長的過程,需要大量資金和人力。 7 5 接入技術(shù)的展望 接入網(wǎng)市場是一個新老技術(shù)的競爭,共存的多種傳輸手段并存品種在競爭,這也影響了政策法規(guī)領(lǐng)域的競爭,多種傳輸系統(tǒng)共存。使用 ATM無源光網(wǎng)絡(luò)( PON0)光纖到戶( FTTH),以及無線接入等多種接入回路的拓?fù)浣Y(jié)構(gòu)。以下無線用戶環(huán)路( WLL)提出。 鋪設(shè)光纖到辦公室 。所謂“非對稱”指的是這種系統(tǒng)上行方向(從用戶終端到交換機發(fā)送方向)和下行方向(從交換機到用戶終端發(fā)送方向)的非對稱信息率。它可以被看作是無關(guān)的業(yè)務(wù)和應(yīng)用交付網(wǎng)絡(luò),主要完成切換通常沒有交叉連接,復(fù)用和傳輸功能。固定無線接入系統(tǒng)如智能天線和接收機的無線接入系統(tǒng)使用了許多高新技術(shù),是一個以創(chuàng)新的方式接入的技術(shù),作為目前仍滯留在今后進(jìn)一步探索實踐的方式最不確定的接入技術(shù)。摻鉺放大器可作為光接收機前置放大器,后置放大器的光發(fā)射機和放大器的補償光源裝置。 從 90 年代中期,集成光伏技術(shù)開始應(yīng)用于通訊網(wǎng)絡(luò),如 Dragone 路由器,在 DWDM 系統(tǒng)合并和路由波長信道的光集成電路已經(jīng)從 8 通道 7 2 通道發(fā)展,而微電機系統(tǒng)( MEMS)是一種小型固體機械部件,微電機系統(tǒng)可以在基體制造完成,在 21 世紀(jì)的信心外延增長,格局的形成和蝕刻加工,集成電路制造技術(shù),硅微機電系統(tǒng)的光領(lǐng)域的創(chuàng)新技術(shù),在不久的將來的下一代光網(wǎng)絡(luò)使用。 HDSL 的系統(tǒng)采用 2B1Q 線路編碼類型,使用回聲抵消,自適應(yīng)濾波,信號處理技術(shù),解決了雙向網(wǎng)上信息以 , 速率傳輸?shù)膬蓚€網(wǎng)絡(luò)傳輸?shù)挠脩魧σ粚ζ胀ǖ挠脩?。遠(yuǎn)程服務(wù)與普通電話耦合器(實際上是一個不同的頻率雙工器,也被稱為普通電話 服務(wù)分配器)收發(fā)器模塊是一到現(xiàn)有的雙絞銅線負(fù)責(zé)各種信號耦合。 HFC 網(wǎng)絡(luò)是一個以模擬頻分復(fù)用為基礎(chǔ),模擬和數(shù)字傳輸技術(shù),光纖和同軸電纜技術(shù),射頻技術(shù)的綜合應(yīng)用類,高度分布式 智能寬帶用戶接入網(wǎng)絡(luò),有線電視和電話網(wǎng)絡(luò)相結(jié)合的產(chǎn)物。然而,在應(yīng)用,以太網(wǎng)接入方式還處于探索階段,覆蓋面相對較小。也可用如 POTS和窄帶 ISDN 和其它接口,但在最新的寬帶 ADSL 業(yè)務(wù)集中到接口。對于一個固定的有線接入網(wǎng)絡(luò)的建設(shè)方面,無線接入可作為過渡手段迅速提供新的用戶線路,有線接入網(wǎng)絡(luò),一旦完成,無線接入系統(tǒng)可以使用遷往別處。 亞太地區(qū),特別是韓國和日本是寬帶接入發(fā)展最迅猛的國家,韓國寬帶用戶總數(shù)已經(jīng)突破 1000 萬,寬帶普及率居世界第一,占據(jù)家庭的 7 互聯(lián)網(wǎng)的 90%。 9 英文原文: Optical Fiber Technology With Various Access Network 1. Mainstream optical work . Fiber optic technology Optical fiber production technology is now mature and is now massproduced, widely used t
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