Ib qho ntawm cov khoom tseem ceeb tshaj plaws ntawm kev kho qhov muag yog yog nws qhov kev nrawm nrawm lossis bandwidth, uas yuav tsum muaj tsawg kawg li cov khoom siv hluav taws xob. Cov transistors tau hla dhau 100 GHz twb tau ua tiav hauv 90 nm Silicon Technology, thiab kev nrawm yuav nce ntxiv raws li qhov tsawg kawg nkaus yog txo qis [1]. Txawm li cas los xij, txoj bandwidth ntawm tam sim no-hnub silicon-based modulators yog txwv. Silicon tsis muaj χ (2) -nonlinearity vim nws cenro-symmetric crystlic crystalline qauv. Kev siv cov kab ke silicon tau coj mus rau cov txiaj ntsig zoo uas twb tau muaj twb tau muaj twb tau muaj twb tau muaj twb muaj twb muaj twb muaj twb tau muaj thaum tseem tsis tau tso cai rau cov khoom siv. Lub xeev-ntawm-tus kos duab silicon photonic modulators yog li ntawd tseem cia siab rau kev zam dawb hauv PN lossis PIN Junctions [3-5]. Pem hauv ntej biased junctions tau pom tias nthuav tawm cov khoom siv voltage-ntev li vπl = 0.36 v hli, tab sis kev nrawm yog txwv los ntawm cov khoom siv tsawg. Tseem, cov ntaub ntawv tus nqi ntawm 10 tus gbit / s tau tsim nrog kev pab ntawm kev pab ua ntej-hais txog hluav taws xob teeb liab [4]. Siv cov kev sib txuas lus rov qab siv, cov bandwidth tau nce mus txog 30 GHz [5,6], tab sis cov khoom voltagelength sawv rau rau venl = 40 v hli. Hmoov tsis zoo, xws li cov ntshav cuam tshuam theem ua rau tsis muaj kev cuam tshuam nrog kev siv ntau dua li [7], thiab lawv teb tsis yog rau kev siv voltage. Txawm li kawm tau cov ntawv tshaj tawm zoo li QAM yuav tsum tau, txawm li cas los xij, ib theem kev teb zoo nkauj, ua kom cov nyhuv hluav taws xob (pockels nyhuv [8]) tshwj xeeb yog ntshaw.
2. Soh mus kom ze
Tsis ntev los no, cov silicon-organic hybrid (soh) tau pom zoo [9-12]. Ib qho piv txwv ntawm SoH Modulator yog qhia hauv Daim Duab 1 (a). Nws muaj ib lub ntsej muag WaveGuide qhia kev tawm tsam kho qhov muag, thiab ob txoj hlua cua uas muaj hluav taws xob hloov kho qhov muag waveGuide rau cov hlau hluav taws xob. Cov hluav taws xob muaj nyob sab nraud kho qhov muag kho kho kom tsis txhob muaj qhov kho qhov muag [13], Daim duab 1 (b). Cov cuab yeej siv tau coated nrog ib qho electro-optic organic cov khoom siv uas uniformly ua rau lub qhov. Lub modulating voltage yog nqa los ntawm cov metallic hluav taws xob waveGuide thiab poob tawm thoob plaws ib qho ua tsaug rau kev coj ua silicon strips. Lub resulting hluav taws xob tom qab ntawd hloov qhov ntsuas ntawm qhov ntsuas tsis raug rau hauv qhov chaw ntawm ultra-ceev electro-optic nyhuv. Txij li thaum lub qhov dav muaj qhov dav nyob rau hauv kev txiav txim ntawm 100 nm, ob peb volts muaj txaus los tsim cov kev txiav txim siab muaj zog heev uas yog nyob rau hauv kev txiav txim ntawm lub zog ntawm cov ntaub ntawv feem ntau. Tus qauv muaj kev ua haujlwm siab txij li ob qho kev ua tau zoo thiab cov liaj teb kho qhov muag tau muaj sab hauv qhov, Daim duab 1 (b) [14]. Qhov tseeb, ua ntej kev siv ntawm SoH modulators nrog kev ua haujlwm sub-vol-volt [11] twb tau qhia, thiab ua txhaum [15 xyoos. Txawm li cas los xij, qhov kev sib tw hauv lub tuam tsev tsawg-voltage siab-ceev soh modulators yog los tsim cov kev sib txuas tau yooj yim sib txuas. Nyob rau hauv ib qho sib npaug Circuit Court muaj peev xwm tuaj yeem sawv cev los ntawm lub capacitor C thiab cov kab ke los ntawm cov neeg tawm tsam R, FIG. 1 (b). Tus coj RC lub sijhawm tas li txiav txim siab rau bandwidth ntawm lub cuab yeej [10,14,17,18]. Txhawm rau kom txo qis kev tiv thaiv R, nws tau hais kom tau hais kom dope cov kab txaij Silicon [10,14]. Thaum doping nce qhov kev coj ua ntawm cov silicon strips (thiab yog li ntawd nce qhov kev poob siab ntxiv vim tias hluav taws xob tsis txaus ntseeg [10,14,19]. Ntxiv mus, cov kev sim ntawm cov ntaub ntawv uas tsis ntev los no tshwm sim tsis tau npaj tseg.
Beijing Rofoeltronics Co., Ltd. Sib Koom Tes Ua Si " Peb lub tuam txhab feem ntau yog koom nrog kev tshawb fawb ywj pheej thiab tsim qauv, thiab muab cov kev pabcuam tsim kho tshiab, thiab cov kws tshawb fawb txog kev lag luam thiab cov kws tshawb nrhiav kev lag luam. Tom qab xyoo ntawm kev ywj pheej tshiab, nws tau tsim cov khoom nplua nuj thiab zoo nkauj, hluav taws xob siv hauv nroog, hluav taws xob, kev kawm, kev kho mob thiab lwm yam kev lag luam.
Peb tab tom nrhiav rau pem hauv ntej rau kev koom tes nrog koj!
Lub sij hawm ncua: Mar-29-2023