Isimiso sokusebenza sokusetshenziswa okuvamilei-modulator yokuqina
Isimiso sama-intention modulators siyahlukahluka kuye ngohlobo. Nazi izimiso zokusebenza zama-common intensity modulators:
1. I-Mach Zehnder Intensity Modulator (I-MZM Modulator)
Isimiso esiyinhloko: Sisekelwe emphumeleni wokuphazamiseka kokukhanya. Isimiso seukuguqulwa kwamandla kagesi-opticukusebenzisa umphumela we-electro-optic wamakristalu nokufeza ukuguqulwa kwamandla ngokusekelwe kusimiso sokuphazamiseka kokukhanya okuhlanganisiwe. Umphumela we-electro-optic wekristalu ubhekisela esimweni lapho inkomba yokukhanya kwekristalu ishintsha khona ngaphansi kwesenzo sensimu kagesi yangaphandle, okubangela umehluko wesigaba phakathi kokukhanya okudlula kukristalu ngezindlela ezahlukene zokuhlukanisa, ngaleyo ndlela kushintshwe isimo sokuhlukanisa sokukhanya.
Inqubo yokusebenza:
Ukukhanya kokufaka kuhlukaniswe ngezindlela ezimbili nge-splitter ye-beam futhi kudlula ezingalweni ezimbili ze-waveguide ngokulandelana.
Ukusebenzisa i-voltage yangaphandle engalweni eyodwa noma zombili bese usebenzisa umphumela we-electro-optic (njengomphumela we-electro-optic oqondile we-lithium niobate crystal) ukushintsha inkomba yokukhanya kwe-waveguide, ngaleyo ndlela kushintshwe isigaba segagasi lokukhanya ezingalweni.
Imisebe emibili yokukhanya ihlanganiswa kabusha ekugcineni kokukhipha, futhi ngenxa yokwehluka kwesigaba okuhlukile, ukuphazamiseka kwemiphumela yokwakha noma yokubhubhisa kungase kwenzeke, okuholela ekushintsheni kokuqina kokukhanya kokukhipha nge-voltage.
Uma umehluko wesigaba phakathi kwezingalo ezimbili ungu-0, ukuqina kokukhanya okuphumayo kusezingeni eliphezulu (esimweni "sokuvuliwe"); Uma umehluko wesigaba ungu-π, ukuqina kokukhanya okuphumayo kuyancishiswa (esimweni "sokuvaliwe"), kufinyelela ukuguqulwa kokuqina.
2. I-Electro Absorption Intensity Modulator (EAM)
Isimiso Esiyinhloko: Ukusebenzisa umphumela wokumuncwa kwe-electro wezinto zomthombo we-quantum.
Inqubo yokusebenza:
Ukusebenzisa insimu kagesi yangaphandle ezintweni ze-semiconductor emthonjeni we-quantum kushintsha i-coefficient yokumuncwa kwezinto.
Uma ukukhanya kudlula entweni ethile, ukuqina kwayo kuyashintsha ngenxa yezinguquko ekumuncweni, ngaleyo ndlela kufezwe ukuguqulwa kokuqina kokukhanya.
Ngokuvamile kudinga ukuthambekela okuphambene, futhi isignali kagesi yokufaka inobudlelwano obuqondile namandla okukhanya okukhiphayo, okwenza ifaneleke ukuxhumana kwe-optical okusheshayo.
3.i-modulator yokuqina kwe-acousto-optic
Isimiso esiyinhloko: Sisekelwe kumphumela we-acousto-optic.
Inqubo yokusebenza:
Khiqiza amagagasi e-ultrasonic ku-crystal ukuze wakhe i-grating enezinguquko ze-refractive index ngezikhathi ezithile.
Uma ukukhanya kudlula ku-grating, kwenzeka i-diffraction, futhi amandla okukhanya okuphazanyisiwe ahlobene namandla amagagasi e-ultrasonic. Ngokulawula amandla noma imvamisa yamagagasi e-ultrasonic, amandla okukhanya okuphumayo angaguqulwa.
4. I-modulator yokuqina kwekristalu yoketshezi
Isimiso esiyinhloko: Ukusebenzisa isici sekristalu eliwuketshezi elishintsha ukudluliselwa kwalo ngaphansi kwensimu kagesi.
Inqubo yokusebenza:
Indlela yokuqondanisa kwama-molecule e-liquid crystal iyashintsha ngaphansi kwesenzo sensimu kagesi, okuthinta ukudluliselwa kokukhanya.
Ngokusebenzisa ama-voltage ahlukene ukulawula ukudluliselwa kwamakristalu e-liquid, ukuqina kokukhanya okuphumayo kuyaguqulwa, okuvame ukusetshenziswa emikhakheni yokubonisa nemifanekiso.
Izinhlobo ezahlukene zama-intention modulators zinezici zazo ngokwemigomo, ukusebenza, kanye nezimo zokusetshenziswa, futhi uhlobo olufanele kufanele lukhethwe ngokwezidingo ezithile.
Isikhathi sokuthunyelwe: Ephreli-22-2026