Cov ntawv thov txiav-ntug hauv optics coj los ntawm optical modulators

Cov ntawv thov txiav-ntug hauv optics coj los ntawm optical modulators

Lub hauv paus ntsiab lus ntawmkho qhov muag modulationtsis nyuaj. Nws tsuas yog ua tiav qhov kev hloov pauv ntawm qhov amplitude, theem, polarization, qhov ntsuas qhov ntsuas tsis zoo, qhov nqus nqus thiab lwm yam ntxwv ntawm lub teeb los ntawm cov stimuli sab nraud, kom tswj tau cov teeb liab kho qhov muag, xws li ua kom photons nqa thiab xa cov ntaub ntawv. Lub ntsiab Cheebtsam ntawm ib tug commonelectro-optic modulatorsuav nrog peb ntu: electro-optic crystals, electrodes, thiab optical ntsiab. Thaum lub sij hawm tus txheej txheem ntawm lub teeb modulator, cov khoom nyob rau hauv lub kho qhov muag modulator hloov nws refractive Performance index, absorption tus nqi thiab lwm yam khoom nyob rau hauv lub zog ntawm sab nraud stimuli (xws li hluav taws xob teb, suab teb, thermal hloov los yog mechanical zog), yog li cuam tshuam rau tus cwj pwm ntawm photons raws li lawv dhau los ntawm cov khoom, xws li tswj cov propagation yam ntxwv ntawm lub teeb (amplitude, thiab lwm yam). Electro-optical siv lead ua yog lub hauv paus ntawm luboptical modulator, lub luag hauj lwm rau teb rau cov kev hloov nyob rau hauv hluav taws xob teb thiab hloov nws refractive index. Electrodes yog siv los siv hluav taws xob, thaum cov khoom siv kho qhov muag xws li polarizers thiab waveplates yog siv los coj thiab txheeb xyuas cov photons dhau los ntawm cov siv lead ua.

Kev siv Frontier hauv Optics

1.Holographic projection thiab tso saib technology

Nyob rau hauv holographic projection, kev siv spatial optical modulators finely modulate qhov teeb meem lub teeb nthwv dej tuaj yeem ua rau lub teeb tsis muaj kev cuam tshuam thiab cuam tshuam rau hauv ib txoj kev tshwj xeeb, tsim kom muaj lub teeb pom kev zoo. Piv txwv li, SLM raws li cov kua siv lead ua kua lossis DMD tuaj yeem hloov kho qhov kho qhov muag ntawm txhua pixel, hloov cov duab cov ntsiab lus lossis kev xav hauv lub sijhawm tiag tiag, tso cai rau cov neeg saib xyuas cov duab peb sab ntawm cov duab los ntawm ntau lub kaum ntse ntse.

2.Optical data cia teb

Optical data storage technology siv lub high-frequency thiab high-zog yam ntxwv ntawm lub teeb rau encode thiab txiav txim siab cov ntaub ntawv los ntawm meej lub teeb modulation. Cov thev naus laus zis no tso siab rau kev tswj xyuas meej ntawm lub teeb tsis muaj zog, suav nrog kev hloov pauv ntawm amplitude, theem thiab lub xeev polarization, khaws cov ntaub ntawv hauv xov xwm xws li optical discs lossis holographic cia cov ntaub ntawv. Optical modulators, tshwj xeeb tshaj yog spatial optical modulators, ua lub luag haujlwm tseem ceeb hauv kev tso cai rau kev tswj xyuas qhov muag pom tseeb ntawm kev khaws cia thiab kev nyeem ntawv.

Nyob rau theem kho qhov muag, photons zoo li cov neeg seev cev zoo nkauj, seev cev zoo nkauj rau "suab paj nruag" ntawm cov ntaub ntawv xws li cov khoom siv lead ua, kua muaju thiab fiber ntau optical. Lawv tuaj yeem hloov pauv kev coj ua zoo nkauj, nrawm, thiab txawm tias tam sim ntawd tso rau qhov sib txawv "xim xim", hloov lawv cov kev txav thiab kev sib dhos, thiab nthuav tawm ib qho kev ua yeeb yam zoo nkauj tom qab lwm qhov. Qhov kev tswj xyuas meej ntawm photons no yog qhov tseeb ntawm tus yuam sij rau kev txiav txim siab ntawm kev siv tshuab kho qhov muag yav tom ntej, ua rau lub ntiaj teb kho qhov muag tag nrho ntawm qhov muaj peev xwm tsis kawg.