Yav tom ntej ntawmcov khoom siv hluav taws xob kho qhov muag
Cov khoom siv hluav taws xob optic modulators ua lub luag haujlwm tseem ceeb hauv cov kab ke optoelectronic niaj hnub no, ua lub luag haujlwm tseem ceeb hauv ntau qhov chaw los ntawm kev sib txuas lus mus rau kev suav lej quantum los ntawm kev tswj cov khoom ntawm lub teeb. Daim ntawv no tham txog qhov xwm txheej tam sim no, qhov kev tshawb pom tshiab thiab kev txhim kho yav tom ntej ntawm cov thev naus laus zis electro optic modulator.
Daim Duab 1: Kev sib piv kev ua tau zoo ntawm ntau yam sib txawvcov khoom siv kho qhov muagcov thev naus laus zis, suav nrog cov roj lithium niobate nyias zaj duab xis (TFLN), III-V hluav taws xob nqus modulators (EAM), silicon-based thiab polymer modulators hais txog kev poob ntxig, bandwidth, kev siv hluav taws xob, qhov loj me, thiab peev xwm tsim khoom.
Cov modulators electro optic raws li silicon thiab lawv cov kev txwv
Cov khoom siv hluav taws xob photoelectric light modulators uas siv silicon ua lub hauv paus ntawm kev sib txuas lus optical tau ntau xyoo. Raws li qhov cuam tshuam ntawm plasma dispersion, cov khoom siv no tau ua tiav kev vam meej zoo kawg li hauv 25 xyoo dhau los, ua rau cov ntaub ntawv hloov pauv ntau dua peb qib. Cov khoom siv hluav taws xob niaj hnub no tuaj yeem ua tiav 4-level pulse amplitude modulation (PAM4) txog li 224 Gb/s, thiab txawm tias ntau dua 300 Gb/s nrog PAM8 modulation.
Txawm li cas los xij, cov modulators raws li silicon ntsib cov kev txwv tseem ceeb los ntawm cov khoom siv. Thaum cov khoom siv optical transceivers xav tau baud tus nqi ntau dua 200+ Gbaud, qhov bandwidth ntawm cov khoom siv no nyuaj rau ua kom tau raws li qhov xav tau. Qhov kev txwv no los ntawm cov khoom siv ntawm silicon - qhov sib npaug ntawm kev zam kev poob lub teeb ntau dhau thaum tswj kev ua kom txaus conductivity tsim kev lag luam tsis zam.
Cov thev naus laus zis thiab cov ntaub ntawv tshiab ntawm modulator
Cov kev txwv ntawm cov modulators uas siv silicon ua ib txwm muaj tau tsav kev tshawb fawb mus rau lwm cov ntaub ntawv thiab cov thev naus laus zis sib koom ua ke. Cov zaj duab xis nyias lithium niobate tau dhau los ua ib qho ntawm cov platforms cog lus tshaj plaws rau ib tiam tshiab ntawm modulators.Cov khoom siv hluav taws xob optic lithium niobate nyias zaj duab xistau txais cov yam ntxwv zoo heev ntawm cov lithium niobate loj, suav nrog: qhov rais dav pob tshab, coefficient electro-optic loj (r33 = 31 pm / V) linear cell Kerrs effect tuaj yeem ua haujlwm hauv ntau qhov wavelength ntau yam
Cov kev nce qib tsis ntev los no hauv kev siv tshuab lithium niobate nyias nyias tau ua rau muaj txiaj ntsig zoo kawg nkaus, suav nrog lub modulator ua haujlwm ntawm 260 Gbaud nrog cov nqi ntaub ntawv ntawm 1.96 Tb / s ib channel. Lub platform muaj cov txiaj ntsig tshwj xeeb xws li CMOS-compatible drive voltage thiab 3-dB bandwidth ntawm 100 GHz.
Kev siv thev naus laus zis tshiab
Kev tsim cov electro optic modulators muaj feem cuam tshuam nrog cov ntawv thov tshiab hauv ntau qhov chaw. Hauv thaj chaw ntawm kev txawj ntse dag thiab cov chaw khaws ntaub ntawv,cov modulators ceev ceevyog qhov tseem ceeb rau tiam tom ntej ntawm kev sib txuas, thiab AI computing applications yog tsav qhov kev thov rau 800G thiab 1.6T pluggable transceivers. Modulator technology kuj siv rau: quantum information processing neuromorphic computing Zaus modulated continuous wave (FMCW) lidar microwave photon technology
Tshwj xeeb, cov lithium niobate electro-optic modulators uas muaj zaj duab xis nyias qhia tau tias muaj zog hauv cov cav ua haujlwm optical computational, muab kev hloov kho sai thiab qis zog uas ua rau kev kawm tshuab thiab kev siv artificial intelligence sai dua. Cov modulators no kuj tuaj yeem ua haujlwm ntawm qhov kub qis thiab tsim nyog rau quantum-classical interfaces hauv superconducting kab.
Kev tsim cov electro optic modulators tiam tom ntej ntsib ntau yam teeb meem loj: Tus nqi tsim khoom thiab qhov loj me: cov lithium niobate modulators tam sim no txwv rau 150 hli wafer ntau lawm, ua rau muaj nqi siab dua. Kev lag luam xav tau nthuav dav wafer loj thaum tswj hwm cov yeeb yaj kiab sib xws thiab zoo. Kev koom ua ke thiab Co-design: Kev txhim kho zoo ntawmcov modulators ua haujlwm siabxav tau kev sib koom ua ke tsim qauv, uas cuam tshuam nrog kev koom tes ntawm cov optoelectronics thiab cov neeg tsim khoom siv hluav taws xob, cov neeg muab khoom EDA, cov chaw tsim khoom, thiab cov kws tshaj lij ntim khoom. Kev nyuaj ntawm kev tsim khoom: Thaum cov txheej txheem optoelectronics raws li silicon tsis nyuaj dua li cov khoom siv hluav taws xob CMOS siab heev, kev ua tiav kev ua tau zoo thiab cov txiaj ntsig zoo xav tau kev txawj ntse tseem ceeb thiab kev ua kom zoo dua ntawm cov txheej txheem tsim khoom.
Vim muaj kev vam meej ntawm AI thiab cov yam ntxwv ntawm geopolitical, daim teb no tau txais kev nqis peev ntau ntxiv los ntawm tsoomfwv, kev lag luam thiab cov tuam txhab ntiag tug thoob plaws ntiaj teb, tsim cov cib fim tshiab rau kev koom tes ntawm cov tsev kawm ntawv qib siab thiab kev lag luam thiab cog lus tias yuav ua kom muaj kev tsim kho tshiab sai dua.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-30-2024