Ukuguqulwa kwe-optical kukongeza ulwazi kwi-carrier light wave, ukuze iparameter ethile ye-carrier light wave itshintshe ngokutshintsha kwesignali yangaphandle, kubandakanya ubunzulu be-light wave, isigaba, i-frequency, i-polarization, i-wavelength njalo njalo. I-modulated light wave ephethe ulwazi idluliselwa kwi-fiber, ifunyanwe yi-photo detector, ize emva koko iguqule ulwazi olufunekayo.
Isiseko esibonakalayo se-electro-optic modulation sisiphumo se-electro-optic, oko kukuthi, phantsi kwesenzo sentsimi yombane esetyenzisiweyo, isalathisi sokuqaqamba kweekristale ezithile siya kutshintsha, kwaye xa igagasi lokukhanya lidlula kule medium, iimpawu zalo zokudlulisela ziya kuchaphazeleka kwaye zitshintshwe.
Kukho iintlobo ezininzi zee-electro-optic modulators (EO modulator), ezinokwahlulwahlulwa zibe ziindidi ezahlukeneyo ngokwemigangatho eyahlukeneyo.
Ngokwesakhiwo se-electrode esahlukileyo, i-EOM inokwahlulwa ibe yi-lumped parameter modulator kunye ne-traveling-wave modulator.
Ngokwesakhiwo esahlukileyo se-waveguide, i-EOIM inokwahlulwa ibe yi-Msch-Zehnder interference intensity modulator kunye ne-directional coupling intensity modulator.
Ngokwendlela yobudlelwane phakathi kwendlela yokukhanya kunye nendlela esebenza ngayo intsimi yombane, i-EOM inokwahlulwa ibe zii-longitudinal modulators kunye nee-transverse modulators. I-longitudinal electro-optic modulator ineengenelo zesakhiwo esilula, ukusebenza okuzinzileyo (ngaphandle kwe-polarization), akukho birefringence yendalo, njl. Ingxaki yayo kukuba i-half-wave voltage iphezulu kakhulu, ingakumbi xa i-modulation frequency iphezulu, ukulahleka kwamandla kukhulu.
I-Electro-optical intensity modulator yimveliso edityaniswe kakhulu ephethwe yiRofea enamalungelo obunikazi obuzimeleyo. Esi sixhobo sidibanisa i-electro-optical intensity modulator, i-microwave amplifier kunye ne-driving circuit yayo ibe yinto enye, engapheleli nje ekuncedeni ukusetyenziswa kwabasebenzisi, kodwa ikwaphucula kakhulu ukuthembeka kwe-MZ intensity modulator, kwaye inokubonelela ngeenkonzo ezenzelwe wena ngokweemfuno zomsebenzisi.
Uphawu:
⚫ Ukulahleka okuphantsi kokufakwa
⚫ I-bandwidth yokusebenza ephezulu
⚫ Indawo yokusebenza enokulungiswa kunye neyokunciphisa
⚫ I-AC 220V
⚫ Kulula ukuyisebenzisa, umthombo wokukhanya onganyanzelekanga
Isicelo:
⚫Inkqubo yokuguqula yangaphandle enesantya esiphezulu
⚫Inkqubo yokubonisa ukufundisa nokuvavanya
⚫Umvelisi wesiginali ye-optical
⚫Inkqubo ye-Optical RZ, i-NRZ
Ixesha lokuthumela: Okthobha-07-2023