Lub hauv paus ntsiab lus ua haujlwm ntawm kev sib koom ua kelub zog modulator
Lub hauv paus ntsiab lus ntawm cov khoom siv hloov kho qhov muaj zog sib txawv nyob ntawm hom. Cov hauv qab no yog cov hauv paus ntsiab lus ua haujlwm ntawm cov khoom siv hloov kho qhov muaj zog feem ntau:
1. Mach Zehnder Intensity Modulator (MZM Modulator)
Lub hauv paus ntsiab lus: Raws li qhov cuam tshuam ntawm lub teeb. Lub hauv paus ntsiab lus ntawmkev hloov kho qhov muaj zog ntawm electro-opticyog siv cov nyhuv electro-optic ntawm cov siv lead ua thiab ua tiav qhov kev hloov kho qhov muaj zog raws li lub hauv paus ntsiab lus ntawm lub teeb polarized. Cov nyhuv electro-optic ntawm cov siv lead ua yog hais txog qhov xwm txheej uas cov ntsuas refractive ntawm cov siv lead ua hloov pauv raws li qhov kev ua ntawm lub zog hluav taws xob sab nraud, ua rau muaj qhov sib txawv ntawm lub teeb hla dhau cov siv lead ua hauv cov lus qhia polarization sib txawv, yog li hloov pauv lub xeev polarization ntawm lub teeb.
Cov txheej txheem ua haujlwm:
Lub teeb nkag tau faib ua ob txoj kev los ntawm lub beam splitter thiab hla dhau ob txhais caj npab waveguide.
Siv lub zog hluav taws xob sab nraud rau ib lossis ob sab caj npab thiab siv cov nyhuv electro-optic (xws li cov nyhuv linear electro-optic ntawm lithium niobate crystal) los hloov qhov refractive index ntawm lub waveguide, yog li hloov pauv theem ntawm lub teeb nthwv dej hauv caj npab.
Ob lub teeb ci tau rov ua ke ntawm qhov kawg ntawm cov zis, thiab vim muaj qhov sib txawv ntawm theem sib txawv, kev cuam tshuam kev tsim kho lossis kev puas tsuaj yuav tshwm sim, ua rau muaj kev hloov pauv ntawm qhov muaj zog ntawm lub teeb ci nrog lub zog hluav taws xob.
Thaum qhov sib txawv ntawm ob sab caj npab yog 0, qhov tso zis lub teeb ci ntsa iab yog qhov siab tshaj plaws (hauv lub xeev "on"); Thaum qhov sib txawv ntawm theem yog π, qhov tso zis lub teeb ci ntsa iab raug txo qis (hauv lub xeev "off"), ua tiav qhov kev hloov kho qhov muaj zog.
2. Lub Tshuab Hloov Pauv Hluav Taws Xob (EAM)
Lub hauv paus ntsiab lus: Siv cov nyhuv electroabsorption ntawm cov ntaub ntawv quantum zoo.
Cov txheej txheem ua haujlwm:
Siv lub zog hluav taws xob sab nraud rau ntawm cov ntaub ntawv semiconductor quantum well hloov pauv qhov coefficient nqus ntawm cov khoom.
Thaum lub teeb hla dhau ib yam khoom, nws qhov muaj zog hloov pauv vim yog qhov hloov pauv ntawm cov coefficient nqus, yog li ua tiav qhov kev hloov kho qhov muaj zog ntawm lub teeb.
Feem ntau xav tau qhov kev cuam tshuam rov qab, thiab lub teeb liab hluav taws xob nkag muaj kev sib raug zoo nrog lub zog teeb pom kev zoo, ua rau nws tsim nyog rau kev sib txuas lus optical ceev ceev.
3.acousto-optic zog modulator
Lub hauv paus ntsiab lus: Raws li cov nyhuv acousto-optic.
Cov txheej txheem ua haujlwm:
Tsim cov nthwv dej ultrasonic hauv cov siv lead ua los tsim ib lub grating nrog cov kev hloov pauv refractive index periodic.
Thaum lub teeb hla dhau lub grating, diffraction tshwm sim, thiab qhov muaj zog ntawm lub teeb diffraction muaj feem cuam tshuam nrog qhov muaj zog ntawm cov nthwv dej ultrasonic. Los ntawm kev tswj qhov muaj zog lossis zaus ntawm cov nthwv dej ultrasonic, qhov muaj zog ntawm lub teeb tso zis tuaj yeem hloov kho.
4. Cov kua siv lead ua kua modulator
Lub hauv paus ntsiab lus: Siv cov yam ntxwv ntawm cov kua siv lead ua kua hloov nws txoj kev xa mus rau hauv qab lub teb hluav taws xob.
Cov txheej txheem ua haujlwm:
Qhov kev taw qhia sib dhos ntawm cov kua siv lead ua kua hloov pauv raws li qhov kev ua ntawm lub teb hluav taws xob, cuam tshuam rau qhov kev xa tawm ntawm lub teeb.
Los ntawm kev siv cov hluav taws xob sib txawv los tswj qhov kev xa tawm ntawm cov kua siv lead ua kua, qhov tso zis teeb pom kev zoo raug hloov kho, uas feem ntau siv rau hauv cov teb ntawm kev tso saib thiab kev thaij duab.
Cov hom modulators sib txawv muaj lawv tus kheej cov yam ntxwv hais txog cov hauv paus ntsiab lus, kev ua tau zoo, thiab cov xwm txheej siv, thiab hom tsim nyog yuav tsum tau xaiv raws li qhov xav tau tshwj xeeb.
Lub sijhawm tshaj tawm: Plaub Hlis-22-2026