Soo bandhigid kooban ee tignoolajiyada modulator laser

Hordhac kooban ee laysarkamodulatorefarsamada
Laser waa mowjad koronto ah oo soo noqnoqota, sababtoo ah isku xirnaantiisa wanaagsan, sida hirarka korantada ee dhaqameed (sida loo isticmaalo raadiyaha iyo telefishanka), sida mawjada qaade si ay u gudbiso macluumaadka. Habka lagu raro xogta leysarka waxaa loo yaqaan modulation, aaladda howshan qabatana waxaa loo yaqaan modulator. Habkan, laserku wuxuu u shaqeeyaa sidii side, halka calaamadda soo noqnoqota hoose ee gudbisa macluumaadka loo yaqaan signalka modulated.
Hababka Laser-ka waxa loo qaybiyaa habaynta gudaha iyo habaynta dibadda laba siyaabood. Hababka gudaha: waxa loola jeedaa habaynta hab-socodka laysarka oscillation, taas oo ah, iyada oo la beddelayo calaamadda si loo beddelo cabbirrada oscillation ee laysarka, sidaas darteed saameynaya sifooyinka soo-saarka laysarka. Waxaa jira laba siyaabood oo wax-ka-beddelka gudaha ah: 1. Si toos ah u xakamee awoodda bamka ee laysarka si loo hagaajiyo xoogga wax soo saarka laysarka. Adigoo isticmaalaya calaamada si loo xakameeyo sahayda laydhka, awooda wax soo saarka laysarka waxa lagu xakamayn karaa calaamada. 2. Curiyeyaasha wax-ka-beddelka waxaa lagu dhejiyaa resonator-ka, iyo sifooyinka jireed ee walxahaas modulation-ka waxaa lagu xakameynayaa calaamadda, ka dibna cabbirada resonator-ka ayaa la beddelaa si loo gaaro habaynta wax soo saarka laser-ka. Faa'iidada habaynta gudaha ayaa ah in waxtarka wax-ku-oolnimada uu sarreeyo, laakiin khasaaraha ayaa ah sababtoo ah modulatorku wuxuu ku yaalaa godka, waxay kordhin doontaa khasaaraha ku jira godka, hoos u dhigista awoodda wax soo saarka, iyo xajmiga modulator-ka ayaa sidoo kale noqon doona. ku xaddidan baasabka resonator-ka. Habaynta dibadda: waxa ay ka dhigan tahay in ka dib samaynta laysarka, modulator-ka la saaro waddada indhaha ee ka baxsan laysarka, waxaana lagu beddelaa astaamaha jireed ee modulator-ka iyadoo la raacayo calaamadda habaysan, iyo marka leysku dhex maro modulator-ka, qiyaas gaar ah. Mowjadda iftiinka ayaa la beddeli doonaa. Faa'iidooyinka is-beddelka dibadda ayaa ah in awoodda wax-soo-saarka laser-ka aysan saameynin iyo xajmiga kontaroolaha oo aan xaddidnayn baasaska resonator-ka. Khasaaradu waa hufnaanta habaynta oo hooseeya.
Hababka Laser-ka waxa loo qaybin karaa habaynta baaxadda, habaynta soo noqnoqda, habaynta wejiga iyo habaynta xoojinta iyadoo loo eegayo sifooyinka habaynta. 1, Habaynta Baaxadda: Hababka baaxadda leh waa mowjadda in baaxadda qaaduhu uu beddelo sharciga calaamadda la beddelay. 2, habaynta inta jeer: si loo beddelo calaamada si loo beddelo inta jeer ee oscillation laser. 3, modulation wejiga: si loo beddelo calaamadda si loo beddelo wejiga laser oscillation laser.

Modulator-ka xooga indhaha
Mabda'a isbeddelka xoojinta korantada-optic-ga waa in la xaqiijiyo isbeddelka xoojinta iyadoo la raacayo mabda'a faragelinta ee iftiinka dabaylaha iyadoo la adeegsanayo saameynta korantada-optic ee crystal. Saamaynta elektiroonigga ah ee crystals waxay loola jeedaa ifafaale in index refractive ee crystal isbeddelo hoos falgalka beerta korontada dibadda, taasoo keentay in farqi wajiga u dhexeeya iftiinka dhex mara crystal ee jihooyin polarization kala duwan, si polarization ah. xaalada iftiinka ayaa isbedeleysa.

Modulator wejiga electro-optic
Mabda'a qaabaynta wajiga electro-optical: wejiga xagasha laysarka oscillation waxaa bedelay qaanuunka habaynta calaamadaha.

Marka lagu daro habaynta xoogga korantada ee kor ku xusan iyo qaabaynta wajiga elektro-optic, waxa jira noocyo badan oo ah modulators laser, sida transverse electro-optic modulator, electro-optic modulator modulator, Kerr electro-optic modulator, acousto-optic modulator. , modulator magnetoptic, modulator faragelinta iyo modulator iftiinka meel bannaan.