Codsiga farsamada ee modulator-ka elektiroonigga ah

Codsiga farsamada eemodulator elektaroonik ah

Modulator Electro-optic (EOM modulatore） waa curiye kontorool calaamad ah oo isticmaala saamaynta korantada-optic si uu u beddelo iftiinka iftiinka. Mabda'a shaqadeeda guud ahaan waxaa lagu gaaraa iyada oo loo marayo saamaynta Pockels (saamaynta Pockels, kuwaas oo ah saamaynta Pockels), taas oo ka faa'iideysanaysa ifafaale in index refractive ee alaabta indhaha ee aan toos ahayn ay isbeddelaan marka la eego ficilka beeraha korontada.

Qaab dhismeedka aasaasiga ah ee modulator-ka elektiroonigga ah sida caadiga ah waxaa ka mid ah crystal (Pockels crystal) oo leh saameyn koronto-optical ah, iyo walxaha caadiga ah waa lithium niobate (LiNbO₃). Korontada loo baahan yahay si loo keeno isbeddelka wejiga waxa loo yaqaan danabka Half-wave. Kiristaalo Pockels, boqollaal ama xitaa kumanaan volts ayaa caadi ahaan loo baahan yahay, markaa baahida loo qabo cod-weyneyayaasha korantada sare. Wareegga elektiroonigga ah ee ku habboon wuxuu u beddeli karaa danab sare oo sidan oo kale ah dhowr nanoseconds, taas oo u oggolaanaysa EOM in loo isticmaalo beddelka indhaha ee degdegga ah; Sababtoo ah dabeecadda awoodda leh ee kiristaalo Pockels, darawaladani waxay u baahan yihiin inay bixiyaan qadar aad u badan oo hadda ah (haddii ay dhacdo isbeddel degdeg ah ama isbeddel, awoodda waa in la yareeyo si loo yareeyo khasaaraha tamarta). Xaaladaha kale, sida marka loo baahan yahay oo kaliya amplitude yar ama habaynta wajiga, kaliya koronto yar ayaa loo baahan yahay habaynta. Qalabka kale ee crystal-ka aan tooska ahayn ee loo isticmaalo modulators electro-optical (EOM modulatore) waxaa ka mid ah potassium titanate (KTP), beta-barium borate (BBO, oo ku habboon awoodda celceliska sare iyo / ama isbeddelka sare ee isbeddelka), lithium tantalate (LiTaO3), iyo ammonium phosphate (NH4H2PO4, ADP, oo leh sifooyin elektro-optic ah).

Modulators Electro-optic (EO modulator） ku muuji awood codsi oo muhiim ah dhowr goobood oo teknoolojiyad sare ah:

1. Xidhiidhka fiber indhaha: shabakadaha isgaarsiinta casriga ah, modulators electro-optical （EO modulator） waxa loo isticmaalaa in lagu habeeyo calaamadaha indhaha, hubinta gudbinta xogta hufan oo la isku halayn karo ee masaafo dheer. Iyadoo si sax ah loo xakameynayo wejiga ama baaxadda iftiinka, gudbinta macluumaadka xawaaraha sare iyo awoodda weyn ayaa lagu gaari karaa.

2. spectroscopy sax ah: Modulator-ka korantada indhaha ayaa wax ka beddela isha iftiinka ee spectrometerka si loo hagaajiyo saxnaanta cabbirka. Iyadoo si degdeg ah loo habeynayo inta jeer ama marxaladda calaamadda indhaha, falanqaynta iyo aqoonsiga qaybaha kiimikada adag ayaa la taageeri karaa, xallinta iyo dareenka cabbirka muuqaalka waa la hagaajin karaa.

3. Waxqabadka sare ee xogta xogta indhaha: modulator-ka-electro-optical modulator ee habka xisaabinta indhaha iyo nidaamka xogta, iyada oo loo marayo habaynta waqtiga-dhabta ah ee calaamadaha indhaha si loo hagaajiyo xawaaraha xogta iyo dabacsanaanta. Iyada oo sifada jawaabta degdega ah ee EOM, xawaaraha sare iyo daahitaanka xogta indhaha ee hoose iyo gudbinta waa la xaqiijin karaa.

4. Tiknoolajiyada Laser: Modulator-ka elektiroonigga ah wuxuu xakameyn karaa wejiga iyo baaxadda laydhka laysarka, isagoo siinaya taageero sawir sax ah, farsamaynta laser iyo codsiyada kale. Iyada oo si sax ah loo habeeyo cabbirrada laydhka laysarka, farsamaynta laser tayo sare leh ayaa lagu gaadhi karaa.