Kev sib txuas lus quantum encrypted
Kev sib txuas lus zais cia ntawm quantum, tseem hu ua kev faib tawm tus yuam sij quantum, yog tib txoj kev sib txuas lus uas tau ua pov thawj tias muaj kev nyab xeeb kiag li ntawm theem kev paub ntawm tib neeg tam sim no. Nws lub luag haujlwm yog faib tus yuam sij ntawm Alice thiab Bob raws sijhawm tiag tiag kom ntseeg tau tias muaj kev nyab xeeb ntawm kev sib txuas lus.
Kev sib txuas lus ruaj ntseg ib txwm muaj yog xaiv ua ntej thiab muab tus yuam sij thaum Alice thiab Bob ntsib, lossis xa ib tus neeg tshwj xeeb los xa tus yuam sij. Txoj kev no tsis yooj yim thiab kim heev, thiab feem ntau yog siv rau hauv cov xwm txheej tshwj xeeb xws li kev sib txuas lus ntawm lub nkoj hauv dej thiab lub hauv paus. Kev faib tus yuam sij quantum tuaj yeem tsim kom muaj ib txoj kab quantum ntawm Alice thiab Bob, thiab muab tus yuam sij rau lub sijhawm tiag tiag raws li qhov xav tau. Yog tias muaj kev tawm tsam lossis kev mloog lus thaum lub sijhawm faib tus yuam sij, Alice thiab Bob tuaj yeem ntes tau lawv.
Kev faib tawm ntawm quantum key thiab kev tshawb pom photon ib leeg yog cov thev naus laus zis tseem ceeb ntawm kev sib txuas lus ruaj ntseg quantum. Nyob rau hauv xyoo tas los no, cov tsev kawm qib siab loj thiab cov koom haum tshawb fawb tau ua ntau qhov kev tshawb fawb sim ntawm cov thev naus laus zis tseem ceeb ntawm kev sib txuas lus quantum.Cov khoom siv hluav taws xob-opticthiabcov lasers uas muaj kab nqaimPeb lub tuam txhab tsim tawm ywj pheej tau siv dav hauv cov txheej txheem faib tawm quantum key. Siv cov kev faib tawm quantum key txuas ntxiv mus ua piv txwv, raws li pom hauv daim duab hauv qab no.
Raws li cov ntsiab cai saum toj no, lub electro-optical modulator (AM, PM) yog ib feem tseem ceeb ntawm lub kaw lus quantum key distribution test system, uas muaj peev xwm hloov kho qhov amplitude lossis theem ntawm lub teeb pom kev zoo, yog li ntawd lub teeb liab nkag tuaj yeem xa mus los ntawm lub teeb liab quantum. Lub kaw lus xav tau lub teeb liab modulator kom muaj qhov sib piv siab thiab qhov poob qis kom tsim tau lub teeb liab pulsed light ratio siab.
| Cov khoom cuam tshuam | Qauv thiab piav qhia |
| laser kab nqaim | ROF-NLS series laser, RIO fiber laser, NKT fiber laser |
| ns pulse lub teeb qhov chaw (laser) | ROF-PLS series pulse light source, sab hauv thiab sab nraud trigger xaiv tau, pulse dav thiab repetition zaus adjustable. |
| Kev hloov kho qhov muaj zog | ROF-AM series modulators, txog li 20GHz bandwidth, siab extinction ratio txog li 40dB |
| Theem modulator | ROF-PM series modulator, bandwidth ib txwm muaj 12GHz, ib nrab nthwv dej voltage qis dua 2.5V |
| Lub tshuab ua kom lub tshuab hluav taws xob microwave | ROF-RF series analog amplifier, txhawb nqa 10G, 20G, 40G microwave teeb liab amplification, rau electro-optical modulator tsav |
| Lub Tshuab Nrhiav Duab Sib Npaug | ROF-BPR series, qhov sib piv tsis lees paub hom siab, suab nrov tsawg |
Lub sijhawm tshaj tawm: Cuaj hlis-09-2024