摘要：
當(dāng)今世界，計(jì)算機(jī)與通信技術(shù)高度結(jié)合，光纖通信有了長(zhǎng)足發(fā)展。縱觀當(dāng)今電信的主要技術(shù)，光纖和光波的變革極大的提高著信息的傳輸容量。進(jìn)入1993年以后，我國(guó)光纖通信已處于持續(xù)大發(fā)展時(shí)期。其特征是大量新技術(shù)，特別是網(wǎng)絡(luò)技術(shù)、高速介質(zhì)接入網(wǎng)(HMAV)、光時(shí)分復(fù)用接入(OTMMA)和波分復(fù)用接入(WDMA)、光孤子(soliton)、摻鉺光纖放大器(EDFA)、 SDH產(chǎn)品等開(kāi)始實(shí)用化并開(kāi)展大量、深入的研究工作。同時(shí)，各種專(zhuān)用光纖系統(tǒng)進(jìn)入國(guó)民經(jīng)濟(jì)各領(lǐng)域，促成了我國(guó)光纖通信技術(shù)的蓬勃發(fā)展。面對(duì)光纖通信技術(shù)的普遍應(yīng)用，了解光纖通信系統(tǒng)組成及其系統(tǒng)參數(shù)的測(cè)量技術(shù)現(xiàn)狀，無(wú)論是對(duì)光纖通信的業(yè)主、經(jīng)銷(xiāo)商，還是對(duì)光纖通信的廣大用戶(hù)都是重要的。
本論文主要介紹數(shù)字光纖通信系統(tǒng)基本組成，性能指標(biāo)及其測(cè)試，主要是光通信誤碼率的測(cè)量。其中包括光纖數(shù)字通信系統(tǒng)的組成概述：光纖數(shù)字通信系統(tǒng)的質(zhì)量指標(biāo)及測(cè)試；Agilent ParBERT 81250 43G誤碼率測(cè)試儀的主要部件、功能特性及其應(yīng)用；誤碼特性的性能指標(biāo)和誤碼的產(chǎn)生機(jī)理及估算；抖動(dòng)特性的性能指標(biāo)和估算；可靠性的指標(biāo)及表示。在系統(tǒng)測(cè)試部分重點(diǎn)介紹光接口的指標(biāo)及測(cè)試：包括測(cè)試的主要儀器的原理、使用方法；各項(xiàng)指標(biāo)的測(cè)試原理、測(cè)試步驟、和注意事項(xiàng)。簡(jiǎn)單說(shuō)明了用誤碼率測(cè)試儀檢測(cè)光通信系統(tǒng)的步驟。最后對(duì)光纖通信的測(cè)試進(jìn)行總結(jié)。
關(guān)鍵詞：
光纖通信系統(tǒng)、光纖 、光端機(jī)、誤碼率、抖動(dòng)(漂移）特性、光功率、靈敏度、光接收機(jī)、光發(fā)射機(jī)、消光比、動(dòng)態(tài)范圍、噪聲、誤碼測(cè)試儀
Abstract :
Our times, with the computer highly combining with communication technology, there is tremendous development in the fiber optic communication. Make a general survey of the main technology of current telecommunications , optic fibre and the change of the light wave improving the capacity of transmission of the information. After entering 1993, the fiber optic communication of our country has already been in big developing period continuously . Its characteristic is a large number of new technologies, for example network technology, HMAV, OTMMA and WDMA , SOLITON , EDFA , SDH product ,etc. which begin to be practical and launch a large amount of , deep research work.. Meanwhile, various kinds of special-purpose optic fibre systems entered every field of national economy, facilitated the flourishing development of the fiber optic communication technology of our country. In the face of the general application of fiber optic communication technology, it is quite important and useful for the owner , distributor of fiber optic communication and the masses of users of fiber optic communication to understand the current technological situation of measurement that fiber optic communication system made up and systematic parameter .
This thesis introduces the digital fiber optic communication system’s test basically mainly, It is mainly the BER measurement of the fiber optic communication system. Including the composition of the digital communication system of optic fibre: Quality index of the digital communication system of optic fibre; Yards of rate main part , function characteristic and his application of tester by mistake of Agilent ParBERT81250 43G , creating prinple of mistaking code and estamte; Shake the performance index of the characteristic and estimate; Index and expression of dependability . Introduce the index and test of all interface especially partly in system testing: Including the principle , operation method of the main instrument that test; Test principle , testing the step , and precautions of every index . Prove with yard lead tester measure optic -communication step of system by mistake briefly. Summarize test of fiber optic communication finally.
Keyword:
Fiber optic communication system、 optic fibre、 mere end machine of optic、Bit Error Rate、 Bit Error、 shake characteristic、 mere power of optic、 sensitivity of optic receivers、optic smooth receivers、 dynamic ranges 、 noises、 BER tester etc.