Optical modulation ke ho eketsa tlhahisoleseding ho leqhubu la leseli la carrier, e le hore parameter e itseng ea leqhubu la leqhubu la motlakase le fetohe ka phetoho ea pontšo ea ka ntle, ho kenyelletsa le matla a leqhubu la leseli, mohato, maqhubu, polarization, wavelength joalo-joalo.Leqhubu la leseli le fetotsoeng le jereng tlhahisoleseling le fetisoa ka har'a fiber, le bonoa ke sesupa-foto, ebe le theola tlhahisoleseling e hlokahalang.
Motheo oa 'mele oa electro-optic modulation ke phello ea electro-optic, ke hore, tlas'a ts'ebetso ea sebaka sa motlakase se sebelisitsoeng, index ea refractive ea likristale tse ling e tla fetoha,' me ha leqhubu la leseli le feta sebakeng sena, litšobotsi tsa lona tsa phetisetso li tla fetoha. ameha le ho fetoha.
Ho na le mefuta e mengata ea li-electro-optic modulator (EO modulator), tse ka aroloa ka mekhahlelo e fapaneng ho latela maemo a fapaneng.
Ho latela sebopeho se fapaneng sa li-electrode, EOM e ka aroloa ka modulator ea lumped parameter le modulator ea wave wave.
Ho latela sebopeho se fapaneng sa waveguide, EOIM e ka aroloa ho Msch-Zehnder interference intensity modulator le directional coupling intensity modulator.
Ho ea ka kamano pakeng tsa tataiso ea leseli le tataiso ea lebala la motlakase, EOM e ka aroloa ka li-modulator tsa longitudinal le li-transverse modulator.The longitudinal electro-optic modulator e na le melemo ea sebopeho se bonolo, ts'ebetso e tsitsitseng (e ikemetseng ea polarization), ha e na birefringence ea tlhaho, joalo-joalo. Bothata ba eona ke hore motlakase oa halofo ea maqhubu o phahame haholo, haholo-holo ha maqhubu a modulation a phahame, matla. tahlehelo e batla e le kgolo.
Electro-optical intensity modulator ke sehlahisoa se kopantsoeng haholo sa Rofea se nang le litokelo tse ikemetseng tsa thepa ea mahlale.Sesebelisoa se kopanya electro-optical intensity modulator, microwave amplifier le potoloho ea eona ea ho khanna ho e le 'ngoe, e sa thuseng feela tšebeliso ea basebelisi, empa hape e ntlafatsa haholo ho tšepahala ha MZ intensity modulator,' me e ka fana ka litšebeletso tse hlophisitsoeng ho latela litlhoko tsa mosebedisi.
Sebopeho:
⚫ Tahlehelo e tlase ea ho kenya
⚫ bandwidth e phahameng ea ts'ebetso
⚫ Sebaka se ka feto-fetohang sa ho fumana le ho fokotsa ts'ebetso
⚫ AC 220V
⚫ Ho bonolo ho e sebelisa, mohloli oa khanya oa boikhethelo
Kopo:
⚫Sistimi ea ho feto-fetoha ha maemo ka ntle ka lebelo le holimo
⚫Sistimi ea ho ruta le ea liteko
⚫ jenereithara ea lets'oao la mahlo
⚫Optical RZ, sistimi ea NRZ
Nako ea poso: Oct-07-2023