Eo modulator Series: Kev kub ceev, tsis tshua muaj hluav taws xob, me me lithium niobate nyias zaj duab xis polarization tswj ntaus ntawv

Ib modulatorSeries: Kev kub ceev, tsis tshua muaj hluav taws xob, me me lithium niobate nyias zaj duab xis polarization tswj ntaus ntawv

Lub teeb tsis nyob hauv qhov chaw dawb (nrog rau cov hluav taws xob hluav taws xob ntawm lwm cov zaus) yog cov tsis muaj zog, thiab cov kev taw qhia ntawm kev co ntawm nws cov hluav taws xob thiab cov hlau nplaum muaj ntau yam kev taw qhia nyob rau hauv qhov cross section perpendicular mus rau cov kev taw qhia ntawm propagation, uas yog lub polarization khoom. ntawm lub teeb. Polarization muaj nuj nqis tseem ceeb hauv kev sib txuas lus kho qhov muag, kev tshawb nrhiav kev lag luam, biomedicine, lub ntiaj teb chaw taws teeb sensing, niaj hnub tub rog, aviation thiab dej hiav txwv.

Hauv qhov xwm txheej, txhawm rau taug kev zoo dua, ntau yam kab mob tau hloov kho qhov muag pom kev uas tuaj yeem paub qhov txawv ntawm lub teeb ntawm lub teeb. Piv txwv li, muv muaj tsib lub qhov muag (peb ib lub qhov muag, ob lub qhov muag), txhua qhov muaj 6,300 lub qhov muag me me, uas pab cov muv kom tau ib daim ntawv qhia ntawm lub polarization ntawm lub teeb nyob rau hauv tag nrho cov lus qhia saum ntuj. Cov muv tuaj yeem siv daim ntawv qhia polarization los nrhiav thiab ua kom raug nws cov hom rau cov paj uas nws pom. Tib neeg tsis muaj lub cev nqaij daim tawv zoo ib yam li cov muv kom paub qhov polarization ntawm lub teeb, thiab yuav tsum tau siv cov khoom siv dag zog kom nkag siab thiab tswj cov polarization ntawm lub teeb. Ib qho piv txwv yog kev siv cov tsom iav polarizing coj lub teeb los ntawm cov duab sib txawv mus rau sab laug thiab sab xis ob lub qhov muag nyob rau hauv perpendicular polarizations, uas yog lub hauv paus ntsiab lus ntawm 3D tsos hauv xinesmas.

Txoj kev loj hlob ntawm kev ua haujlwm siab optical polarization tswj cov cuab yeej yog tus yuam sij los tsim lub teeb pom kev siv tshuab polarized. Cov cuab yeej tswj hwm polarization xws li polarization state generator, scrambler, polarization analyzer, polarization maub los, thiab lwm yam. Nyob rau hauv xyoo tas los no, optical polarization manipulation technology tau nce zuj zus thiab sib sib zog nqus mus rau hauv ntau qhov chaw tshwm sim ntawm qhov tseem ceeb.

Nojoptical kev sib txuas lusRaws li ib qho piv txwv, tau tsav los ntawm qhov kev thov rau cov ntaub ntawv loj heev kis tau tus mob nyob rau hauv cov ntaub ntawv chaw zov me nyuam, ntev-ntev coherentkho qhov muagkev sib txuas lus thev naus laus zis tau maj mam kis mus rau qhov kev sib tshuam luv luv uas muaj kev nkag siab zoo rau cov nqi thiab kev siv hluav taws xob, thiab kev siv tshuab polarization manipulation tuaj yeem txo tus nqi thiab kev siv hluav taws xob luv luv ntawm kev sib txuas lus kho qhov muag. Txawm li cas los xij, tam sim no, kev tswj hwm polarization feem ntau pom tau los ntawm cov khoom siv kho qhov muag tsis pom kev, uas cuam tshuam rau kev txhim kho kev ua tau zoo thiab txo tus nqi. Nrog rau txoj kev loj hlob sai ntawm optoelectronic kev koom ua ke thev naus laus zis, kev sib koom ua ke thiab nti yog qhov tseem ceeb hauv kev txhim kho yav tom ntej ntawm optical polarization tswj cov cuab yeej.
Txawm li cas los xij, optical waveguides npaj nyob rau hauv cov tsoos lithium niobate crystals muaj qhov tsis zoo ntawm qhov sib txawv me me refractive index sib piv thiab tsis muaj zog optical teb binding muaj peev xwm. Ntawm ib sab, cov cuab yeej loj yog qhov loj, thiab nws nyuaj rau kev ua kom tau raws li qhov xav tau ntawm kev sib koom ua ke. Ntawm qhov tod tes, kev sib cuam tshuam electrooptical tsis muaj zog, thiab kev tsav tsheb ntawm lub cuab yeej yog siab.

Nyob rau hauv xyoo tas los no,cov khoom siv photonicRaws li lithium niobate nyias cov ntaub ntawv ua yeeb yaj kiab tau ua keeb kwm kev vam meej, ua tiav kev nrawm dua thiab qis dua kev tsav tsheb ntau dua li ib txwm muaj.Cov khoom siv lithium niobate photonic, yog li lawv nyiam los ntawm kev lag luam. Hauv kev tshawb fawb tsis ntev los no, kev sib koom ua ke optical polarization tswj nti tau paub txog ntawm lithium niobate nyias zaj duab xis photonic integration platform, suav nrog polarization generator, scrambler, polarization analyzer, polarization maub los thiab lwm yam haujlwm tseem ceeb. Cov tsis tseem ceeb ntawm cov chips, xws li polarization tiam ceev, polarization extinction ratio, polarization perturbation ceev, thiab kev ntsuas ceev, tau teeb tsa lub ntiaj teb cov ntaub ntawv tshiab, thiab tau qhia cov kev ua tau zoo nyob rau hauv kev kub ceev, tsis tshua muaj nqi, tsis muaj kab mob hloov pauv, thiab qis. tsav voltage. Cov kev tshawb fawb tau tshwm sim thawj zaug paub txog kev ua haujlwm siablithium niobatenyias zaj duab xis optical polarization tswj cov cuab yeej, uas yog tsim los ntawm ob chav hauv paus: 1. Polarization rotation / splitter, 2. Mach-zindel interferometer (piav>), raws li qhia hauv daim duab 1.