Kev nkag siab txog cov electro-optic modulators

Kev nkag siab txog cov electro-optic modulators
Ib qho Electro-optic modulator (EOM) yog lub tshuab hloov hluav taws xob uas siv cov teeb liab hluav taws xob los tswj cov teeb liab pom kev, feem ntau yog siv rau hauv cov txheej txheem hloov teeb liab pom kev hauv kev siv tshuab sib txuas lus.
Cov hauv qab no yog cov lus qhia ntxaws ntxaws txog lub electro-optic modulator:
1. Lub hauv paus ntsiab lus ntawmelectro-optic modulatoryog raws li cov nyhuv electro-optic, uas yog, qhov ntsuas refractive ntawm qee cov ntaub ntawv yuav hloov pauv nyob rau hauv qhov kev ua ntawm lub zog hluav taws xob siv. Thaum lub teeb nthwv dej hla dhau cov siv lead ua no, cov yam ntxwv ntawm kev nthuav dav hloov pauv nrog lub zog hluav taws xob. Siv cov hauv paus ntsiab lus no, theem, amplitude lossis polarization xeev ntawmkho qhov muaglub teeb liab tuaj yeem tswj tau los ntawm kev hloov pauv lub zog hluav taws xob siv.
2. Cov qauv thiab cov khoom sib xyaw Cov modulators electro-optical feem ntau yog tsim los ntawm cov kev kho qhov muag, cov amplifiers, cov lim dej thiab cov hloov pauv photoelectric. Tsis tas li ntawd, nws suav nrog cov khoom tseem ceeb xws li cov tsav tsheb ceev ceev, cov fibers optical thiab piezoelectric crystals. Cov qauv ntawm cov electro-optic modulator tuaj yeem sib txawv raws li nws hom kev hloov kho thiab cov kev xav tau ntawm daim ntawv thov, tab sis feem ntau suav nrog ob ntu: electro-optic inverter module thiab photoelectric modulation module.
3. Hom kev hloov kho Electro-optic modulator muaj ob hom kev hloov kho tseem ceeb:kev hloov kho theemthiab kev hloov kho qhov muaj zog. Kev hloov kho theem: Lub theem ntawm tus neeg nqa khoom hloov pauv raws li lub teeb liab hloov pauv. Hauv Pockels electro-optic modulator, lub teeb zaus nqa khoom hla dhau lub piezoelectric siv lead ua, thiab thaum lub zog hloov kho tau siv, lub teb hluav taws xob tau tsim hauv lub piezoelectric siv lead ua, ua rau nws cov ntsuas refractive hloov pauv, yog li hloov lub theem ntawm lub teeb.Kev hloov kho qhov muaj zog: Qhov muaj zog (lub teeb ci) ntawm lub teeb pom kev hloov pauv raws li lub teeb liab hloov pauv. Feem ntau, kev hloov kho qhov muaj zog yog ua tiav los ntawm kev siv Mach-Zehnder intensity modulator, uas yog sib npaug rau Mach-Zehnder interferometer. Tom qab ob lub teeb raug hloov kho los ntawm lub caj npab hloov theem nrog ntau qhov sib txawv, thaum kawg lawv raug cuam tshuam kom tau txais lub teeb liab kho qhov muaj zog.
4. Cov chaw siv Cov modulators electro-optical muaj ntau yam kev siv hauv ntau qhov chaw, suav nrog tab sis tsis txwv rau: kev sib txuas lus optical: Hauv cov kab ke sib txuas lus optical ceev ceev, cov modulators electro-optical yog siv los hloov cov teeb liab hluav taws xob mus rau hauv cov teeb liab optical kom ua tiav cov ntaub ntawv encoding thiab kis. Los ntawm kev hloov pauv qhov muaj zog lossis theem ntawm cov teeb liab optical, cov haujlwm ntawm kev hloov lub teeb, kev tswj tus nqi modulation thiab kev hloov pauv teeb liab tuaj yeem ua tiav. Spectroscopy: Cov modulators electro-optical tuaj yeem siv ua cov khoom ntawm cov khoom siv optical spectrum analyzers rau kev tshuaj xyuas spectral thiab kev ntsuas. Kev ntsuas kev txawj ntse: cov modulators electro-optical kuj ua lub luag haujlwm tseem ceeb hauv cov kab ke radar, kev kuaj mob thiab lwm yam teb. Piv txwv li, hauv cov kab ke radar, nws tuaj yeem siv rau kev hloov pauv teeb liab thiab demodulation; Hauv kev kuaj mob, nws tuaj yeem siv rau kev thaij duab optical thiab kev kho mob. Cov khoom siv photoelectric tshiab: cov modulators electro-optical kuj tseem siv tau los tsim cov khoom siv photoelectric tshiab, xws li cov hloov pauv electro-optical, cov khoom siv optical isolators, thiab lwm yam.
5. Cov Zoo thiab Qhov Tsis Zoo Electro-optic modulator muaj ntau yam zoo, xws li kev ntseeg siab, kev siv hluav taws xob tsawg, kev teeb tsa yooj yim, me me thiab lwm yam. Tib lub sijhawm, nws kuj muaj cov yam ntxwv hluav taws xob zoo thiab kev cuam tshuam tsis zoo, uas tuaj yeem siv rau kev xa xov broadband thiab ntau yam kev xav tau ua cov teeb liab. Txawm li cas los xij, electro-optic modulator kuj muaj qee qhov tsis zoo, xws li kev xa xov qeeb, yooj yim cuam tshuam los ntawm cov nthwv dej electromagnetic sab nraud. Yog li ntawd, thaum siv electro-optic modulator, nws yog qhov tsim nyog los xaiv cov khoom zoo raws li qhov xav tau tiag tiag kom ua tiav cov txiaj ntsig zoo thiab kev ua tau zoo. Hauv kev xaus, electro-optic modulator yog ib qho tseem ceeb electro-optic converter, uas muaj kev cia siab dav hauv ntau qhov chaw xws li kev sib txuas lus optical, spectroscopy thiab kev ntsuas kev ntsuas.
Nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis thiab kev thov kom muaj kev ua haujlwm siab dua rau cov khoom siv kho qhov muag, cov khoom siv hluav taws xob-optical modulators yuav raug tsim thiab siv dav dua.