Flexible bipolarphase modulator
Munhandare yeakakwira-kumhanya yekuona kutaurirana uye quantum tekinoroji, echinyakare modulators akatarisana neakakomba mabhodhoro ekuita! Kusakwana kwechiratidzo kuchena, inflexible phase control, uye yakanyanyisa kushandiswa kwesimba system - aya matambudziko ari kutadzisa kusimukira kwetekinoroji.
Bipolarelectro-optical phase modulatorinogona kuwana nhanho mbiri-inoenderera mberi modulation yechikamu chezviratidzo zvemaziso. Iwo anoratidza kubatanidzwa kwakanyanya, kuderera kwekuisa kurasikirwa, yakakwira modulation bandwidth, yakaderera hafu-wave voltage, uye yakanyanya kukuvadza magetsi emagetsi. Iwo anonyanya kushandiswa kune optical chirp control mune yakakwirira-kumhanya optical kutaurirana masisitimu uye yakabatikana nyika chizvarwa mune quantum kiyi yekugovera masisitimu. Kuberekwa kwemabhandi eparutivi muROF masisitimu uye kuderedzwa kweakakurudzirwa Brillouin kuparadzira (SBS) mune analog optical fiber kutaurirana masisitimu, pakati pemamwe minda.
Thebipolar phase modulatorinowana kunyatso kudzora kwechikamu chezviratidzo zvemaziso kuburikidza ne-matanho maviri-inoenderera mberi kwechikamu modulation, uye inonyanya kuratidza kukosha kwakasiyana mu-high-speed optical communication uye quantum key distribution.
1. Kubatanidzwa kwepamusoro uye kukuvadza kukuru kwechikumbaridzo: Inotora monolithic yakabatanidzwa dhizaini, inokwana muhukuru, uye inotsigira yakakwirira kukuvadza optical simba. Inogona kuenderana zvakananga nepamusoro-simba laser masosi uye inokodzera chizvarwa chinoshanda chemillimeter-wave sidebands muROF (Optical Wireless) masisitimu.
2. Chirp kudzvinyirira uye SBS manejimendi: Mukumhanya-kumhanya kwakabatana kutapurirana, mutsara wephase modulationinogona kunyatso kudzvanya kurira kwezviratidzo zvemaziso. Mune analog optical fiber kutaurirana, nekugadzirisa kudzika kwechikamu chemodulation, iyo yakakurudzirwa Brillouin scattering (SBS) mhedzisiro inogona kuderedzwa zvakanyanya, nekudaro ichiwedzera kureba kwekutapurirana.
Mu quantum key distribution (QKD), iyo yakabatwa mamiriro e photon pairs inoshanda se "quantum key" yekukurukurirana kwakachengeteka - iko kurongeka kwekugadzirira kwayo kunogadzirisa zvakananga pfuma isiri yekuvhara yekiyi. Iyo "kuchinjika" yebipolar phase modulator inoratidzwa mukukwanisa kwayo kugadzirisa zvine simba zvikamu zvechikamu kuti zvienderane nekukanganisika kwezvakatipoteredza kweakasiyana optical fiber links (senge tembiricha shanduko uye kudonha kwechikamu kunokonzerwa nekushushikana kwemagetsi), kuve nechokwadi chepamusoro chizvarwa cheyakabatika mafoton pairs. Iko "kugadzikana" kunowanikwa kuburikidza nekunyatso kudzora tembiricha uye chikamu-kukiya frequency tekinoroji, iyo inodzvinyirira chikamu ruzha pazasi peiyo quantum ruzha muganho uye kudzivirira decoherence yehuwandu hwematunhu panguva yekufambisa. Iyi mbiri mbiri ye "flexibility + kugadzikana" haingo wedzera mwero wekupfupika-entanglement kugoverwa mumetropolitan nharaunda network (senge chiyero chemhosho isingasviki 1% mukati memakiromita makumi mashanu), asi zvakare inotsigira kutendeseka kwemakiyi mukufambiswa kwechinhambwe mumatanho epakati (senge anopfuura zana emakiromita ari pasi pekuvaka maguta ari pasi peguta), yakachengeteka" quantum kutaurirana network.
Nguva yekutumira: Jul-22-2025