高精度光纖延時(shí)技術(shù)研究.pdf

1、電子科技大學(xué)碩士學(xué)位論文高精度光纖延時(shí)技術(shù)研究姓名：邱志成申請學(xué)位級別：碩士專業(yè)：光學(xué)工程指導(dǎo)教師：邱琪史雙瑾20090320AbstractAbstractIncomparisonwithelectricdelayline，Opticalfiberdelaylines(OFDL)havemanyadvantages，such嬲，smallsize，lowweight，broadbandwidth，nosusceptibilitytoe

2、lectro—magneticinterference，andsquint—freearraysteeringOFDLareinstalledortobeinstalledonradarstations，satellitesandcommunicationsfieldTheOFDLwhichhasllighprecision，smallsizeandhi曲dynamicrangeisurgentlyneededinthefieldofa

3、pplicationTheprincipleofOFDLisintroducedandthedevelopingsituationwhichisathomeandabroadisanalyzedInthedesignoftopologicalstructures，twostructuresarecompared，becamethestructureofbypaSscannothavesmalldelaystepandishardteac

4、hhighprecisionSOwechoosethedifferencestructureTheerrorcausedbyallopticalswitchisanalyzed，andwefindthatdifferenttopologicalstructureshavedifferentinfluencesintheprecisionofOFDLThesoftwareMATLABisusedtogetthebesttopologica

5、lstructure，bysimulatingwhentheerrorcausedbyanopticalswitchislps，theprecisionofopticalfiberdelaylineCanreach2ps，andthismethodcallbeappliedtoanybitOFDLwimarbitraryopticalswitchesInthechoiceofthekeycomponent，alloftheoptical

6、switchesarecomparedandwechooseMagnetoopticalswitchwhichhaSsmallsizeandhi曲speedIntheresearchofmethodofmeasurementforhi曲precisionmanywaysareanalyzedincludingopticalmeasurementandvectornetworkanalyzerWechoosethevectornetwor

7、kanalyzertomeasurethelengthofthe硒％andthemethodisbasedonfrequencydomainmethod，thathashighprecisionandiseasytomeasureforUSIntheresearchofconnectionmethodforopticalfiberByusingtheworkfixtureandinthestateofmonitoringwegetgoo

8、dresultincuttingthefiberandtheprecisioncallreachlpsThedrivecircuitandsteeringcircuitwhichhavehighspeedwerefinished，andthe5bitsteeringcircuitisprovedstableBymeasuringtheswitchingtimeofthemagnetoopticalswitchislessthan20ps