O le a le Optical modulator?
Optical modulatore masani ona faʻaaogaina e faʻaogaina ai meatotino o ave moli, e pei o le laser. E mafai e le masini ona fa'aogaina mea totino o le la'au, e pei o le mana opitika po'o le vaega. O le modulator e tusa ai ma le natura o le uila faʻapipiʻiina e taʻuamalosi modulator, vaega modulator, polarization modulator, spatial Optical modulator, ma isi ituaiga eseese o modulators e mafai ona faʻaaogaina i faʻaoga eseese, e pei o fesoʻotaʻiga fiber optic, masini faʻaalia, Q-switched poʻo le mode-locked lasers, ma fua faʻatatau.
Ituaiga modulator Optical
E tele ituaiga eseese o modulators:
1. Acousto-optic modulator o se modulator faʻavae i luga o le acousto-optic aafiaga. E faʻaaogaina e fesuiaʻi pe faʻaauau pea ona fetuutuunai le amplitude o le laisa leisa, suia le tele o le malamalama, pe suia le itu o le avanoa.
2. O lefa'aogaina eletise eletisefa'aogaina le fa'aogaina o le eletise i le pusa Kerrs pusa. E mafai ona latou fa'aogaina le tulaga polarization, vaega, po'o le malosi o le beam, po'o le fa'aaogaina mo le fa'aaogaina o le pulupulu e pei ona ta'ua i le vaega i luga ole ultrashort pulse amplifier.
3. O le eletise absorption modulator o se faʻaogaina malosi o loʻo faʻaaogaina i luga o se faʻasalalauga faʻamatalaga i fesoʻotaʻiga fiber opitika.
(4) Faʻalavelave faʻalavelave, e pei o Mach-Zehnder modulators, e masani ona faʻaaogaina i faʻasalalauga faʻapipiʻi faʻapipiʻi mo faʻasalalauga faʻamatalaga mata.
5. Fiber optic modulators e mafai ona faʻavae i luga o le tele o mataupu faavae. E mafai ona avea o se masini fiber optic moni, pe mafai foi ona avea ma se vaega o le tino o loʻo i ai fibre pigtails.
6. Suavai tioata modulator e talafeagai mo le faʻaogaina i masini faʻaaliga faʻaalia poʻo le pulupulu shaper. E mafai foʻi ona faʻaaogaina e avea ma faʻaogaina o le malamalama faʻapitoa, o lona uiga o le felauaiga e eseese ma avanoa, lea e mafai ona faʻaogaina i masini faʻaaliga.
7. O le tisiki modulation e mafai ona suia i lea taimi ma lea taimi le malosi o le la'au, lea e fa'aaogaina i nisi o fua fa'apitoa fa'apitoa (e pei o le fa'aogaina o mea fa'apipi'i loka).
8. Micromechanical modulators (micromechanical system, MEMS) e pei o valve malamalama faʻavae silicon ma faʻata faʻataʻitaʻi lua e sili ona taua i faʻaaliga faʻaalia.
9. O le tele o mea faʻapipiʻi faʻapipiʻi, e pei o le electro-optical modulators, e mafai ona faʻaogaina se nofoaga lapopoa tele ma e mafai foi ona faʻaoga i tulaga maualuga-malosi. O mea fa'apipi'i fa'apipi'i alava, e masani lava o fa'atonuga ta'iala fa'atasi ma fa'alava pua'a, e faigofie ona tu'ufa'atasia i faiga fa'afimata.
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Fa'aogaina o le Optical modulator
Optical modulators e iai le tele o faʻaoga i le tele o matata. O loʻo taua i lalo vaega faʻaoga autu o Optical modulators ma a latou faʻaoga faʻapitoa:
1. Feso'ota'iga feso'ota'iga: I faiga fa'afeso'ota'i fa'apipi'i, fa'aogaina fa'aogaina fa'atonu fa'apitoa e fa'aogaina ai le amplitude, taimi ma le vaega o fa'ailoga opitika ina ia mafai ai ona tu'uina atu fa'amatalaga. E masani ona faʻaaogaina i laʻasaga autu e pei o le photoelectrical conversion, optical signal modulation ma demodulation . E taua tele le faʻaogaina o masini eletise eletise i le televave o fesoʻotaʻiga fesoʻotaʻiga, lea e faʻaaogaina e faʻaliliu ai faʻailoga faʻaeletoroni i faʻailoga mataʻutia ma iloa ai faʻamatalaga ma faʻasalalauga. E ala i le faʻavasegaina o le malosi poʻo le vaega o le faʻailoga opitika, o galuega o le fesuiaʻiina o le moli, faʻatonutonuina o fua faʻatatau ma le faʻaogaina o faʻailoga e mafai ona iloa
2. Faʻamatalaga mataʻutia: E mafai e le modulator faʻapipiʻi ona iloa le fuaina ma le mataʻituina o le siosiomaga e ala i le faʻaogaina o uiga o le faailoilo. Mo se faʻataʻitaʻiga, e ala i le faʻavasegaina o le vaega poʻo le tele o le malamalama, fiber optic gyroscopes, fiber optic pressure sensors, etc. e mafai ona iloa.
3. Fa'apipi'i fa'apitoa ma fa'agaioiga: E fa'aogaina le fa'aogaina o mea fa'apipi'i mo le teuina ma le fa'aogaina o mea. I mafaufauga fa'apitoa, e mafai ona fa'aogaina masini fa'apipi'i e tusi ma faitau ai fa'amatalaga i totonu ma fafo atu o fa'asalalauga fa'asalalau. I le faʻaogaina o mata, e mafai ona faʻaogaina le modulator opitika mo le faʻatulagaina, faʻamamaina, faʻaogaina ma le faʻaitiitia o faʻailoga mata
4. Faʻataʻitaʻiga faʻapitoa: e mafai ona faʻaogaina masini faʻapipiʻi e faʻaogaina ai le vaega ma le maualuga o se ave o le malamalama, ma suia ai uiga o le ata i ata faʻapitoa. Mo se faʻataʻitaʻiga, e mafai e le faʻaogaina o le moli moli ona faʻaogaina le faʻaogaina o vaega e lua e sui ai le umi o le taulaiga ma le loloto o le taulaiga o se laʻau
5. Pulea o le pisapisao mata: E mafai e le modulator opitika ona pulea le malosi ma le tele o le malamalama, ma faʻaitiitia ai pe taofia ai le pisa opitika i totonu o le masini faʻaogaina. E mafai ona faʻaaogaina i masini faʻapipiʻi, lasers ma fiber optic transmission systems e faʻaleleia ai le fua faʻailoga-i-piso ma le faʻatinoga o le polokalama
6. Isi talosaga: electro-optical modulators o loʻo faʻaogaina foʻi i suʻesuʻega faʻapitoa, faʻaogaina o le radar, suʻesuʻega faafomaʻi ma isi matāʻupu. I le spectroscopy, e mafai ona fa'aogaina le fa'aogaina o le electro-optical modulator e fai ma vaega o se su'esu'ega o alaleo opitika mo su'esu'ega ma fua fa'atatau. I totonu o le radar system, e fa'aogaina le electro-optic modulator mo le fa'aogaina o fa'ailoga ma le fa'aitiitia. I suʻesuʻega faʻafomaʻi, e faʻaaogaina masini eletise eletise i ata faʻataʻitaʻi ma togafitiga .
Taimi meli: Tes-23-2024