Waa maxay modulator-ka wejiga

Waa maxaymodulator-ka wejiga

Qalabka wax lagu beddelo wejiga waa qalab wax lagu beddelo oo xakamayn kara wejiga iftiinka laysarka. Noocyada caadiga ah ee qalabka wax lagu beddelo wejiga waa kuwa ku salaysan sanduuqa Pockels.modulators-ka elektarooniga ahiyo modulators-ka dareeraha ah ee kiristaalka, kuwaas oo sidoo kale ka faa'iideysan kara isbeddellada tusmada refractive fiber-ka kulaylka ama isbeddellada dhererka, ama iyadoo la fidinayo si loo beddelo dhererka. Qaabeeyayaasha wejiga ee kala duwan ayaa loo isticmaalaa goobta muraayadaha indhaha ee isku dhafan, halkaas oo iftiinka la beddelay uu ku faafo hagaha hirarka.

Sifooyinka muhiimka ah ee modulators-ka wejiga waxaa ka mid ah: Cabbirka modulation-ka wejiga (kaas oo go'aamiya tusmada modulation-ka iyo awoodda qaraabada ah ee dhinaca band-ka) wuxuu u baahan yahay bandwidth modulation danab drive (kala duwanaanshaha soo noqnoqoshada modulation-ka),modulator-ka elektaroonigga ahwaa nidaamka GHz, qalabka isticmaalaya saameynta kulaylka ama walxaha kiristaalka dareeraha ah aad ayuu uga yar yahay baaxadda hawlgalka ee daloolka qalabka. Waxay xaddidaysaa radius-ka shucaaca ee la hagaajiyay Cabbirrada dibadda ee qalabka Sifooyinkani aad bay ugu kala duwan yihiin noocyada kala duwan ee modulators-ka wejiga. Sidaa darteed, modulators-ka wejiga ee kala duwan ayaa loo baahan yahay in loo isticmaalo codsiyada kala duwan ee wax ku oolka ah.

Tusaalooyinka codsiyada modulator-ka wejiga waxaa ka mid ah: modulator-ka wejiga ee ku jira resonator-ka laysarka hal-soo-noqoshada ah ayaa loo isticmaali karaa hagaajinta hirarka, ama qufulka qaabka firfircoon (xiritaanka qaabka FM) ee laysarka si loo wajaho iftiinka haddii uu leeyahay xoog wax-ka-beddel dhexdhexaad ah, waxaa loo isticmaali karaa habka xasilinta soo noqnoqoshada laysarka, tusaale ahaan, Habka Pell-Drever-Hall wuxuu u baahan yahay modulators-ka wejiga ee aaladaha cabbiraadda badan ee interferometer-ka, badanaa iyadoo la adeegsanayo calaamadaha wadista xilliyeedka. Cabbiraadaha qaarkood waxay u baahan yihiin shanlooyinka soo noqnoqda, kuwaas oo laga helo shilalka hal-soo-noqoshada ah ee ku jira modulator-ka wejiga. Xaaladdan oo kale, isbeddelka wejiga badanaa wuxuu u baahan yahay inuu noqdo mid xooggan, si aad u hesho kooxo badan oo dhinac ah. Gudbiyaha xogta ee nidaamka isgaarsiinta fiber-ka indhaha, modulator-ka wejiga waxaa loo isticmaali karaa in lagu kala saaro macluumaadka la gudbiyay. Tusaale ahaan, habka furaha wareegga wejiga ayaa la isticmaalaa.