Flexible bipolar phase modulator

Flexible bipolargawo modulator

M'bwalo lamalumikizidwe othamanga kwambiri komanso ukadaulo wa quantum, owongolera azikhalidwe akukumana ndi zovuta zazikulu! Kusakwanira kwa chizindikiro choyera, kuwongolera magawo osasinthika, komanso kugwiritsa ntchito mphamvu kwambiri pamakina - zovuta izi zikulepheretsa chitukuko chaukadaulo.

Bipolarelectro-optical phase moduleakhoza kukwaniritsa magawo awiri mosalekeza kusinthasintha kwa gawo la zizindikiro za kuwala. Amakhala ndi kuphatikizika kwakukulu, kutayika kocheperako, kutsika kwamphamvu kwa bandwidth, kutsika kwapakati-wave voliyumu, komanso kuwonongeka kwakukulu kwamagetsi. Amagwiritsidwa ntchito makamaka pakuwongolera chirp pamakina olumikizirana othamanga kwambiri komanso kukhazikitsidwa kwa boma pamakina ogawa makiyi a quantum. Kupangidwa kwa zingwe zam'mbali m'machitidwe a ROF ndikuchepetsa kufalikira kwa Brillouin (SBS) mu analogi optical fiber communication systems, pakati pa magawo ena.

Thebipolar phase modulatorimakwaniritsa kuwongolera kolondola kwa gawo la ma siginecha owoneka bwino kudzera munjira ziwiri zotsatizana, ndipo makamaka ikuwonetsa phindu lapadera pakulankhulana kothamanga kwambiri komanso kugawa makiyi a quantum.

1. Kuphatikizika kwakukulu komanso kuwonongeka kwakukulu: Imatengera mapangidwe osakanikirana a monolithic, ndi yaying'ono mu kukula, ndipo imathandizira kuwonongeka kwakukulu kwa mphamvu ya kuwala. Itha kukhala yogwirizana mwachindunji ndi magwero amphamvu amphamvu kwambiri a laser ndipo ndiyoyenera kupanga zomangira zam'mbali za millimeter-wave mu machitidwe a ROF (Optical Wireless).

2. Kuponderezedwa kwa Chirp ndi kasamalidwe ka SBS: Pakutumiza kogwirizana kwambiri, mzere wakusintha kwa gawoimatha kupondereza bwino kulira kwa ma siginecha a kuwala. Mu analogi kuwala CHIKWANGWANI kulankhulana, mwa kukhathamiritsa kuya kwa gawo kusinthasintha, analimbikitsa Brillouin scattering (SBS) zotsatira akhoza kuchepetsedwa kwambiri, potero kukulitsa mtunda kufala.

Mu quantum key distribution (QKD), malo otsekedwa a ma photon pairs amakhala ngati "quantum key" kuti azitha kulankhulana motetezeka - kulondola kwa kukonzekera kwake kumatsimikizira mwachindunji malo osatsegula a fungulo. "Kusinthasintha" kwa bipolar phase modulator kumawonetsedwa ndi kuthekera kwake kosintha magawo agawo kuti agwirizane ndi kusokonezeka kwa chilengedwe cha maulalo osiyanasiyana a fiber fiber (monga kusintha kwa kutentha ndi kusuntha kwa gawo komwe kumachitika chifukwa cha kupsinjika kwamakina), kuwonetsetsa kuti m'badwo wapamwamba wa ma photon awiriwa. "Kukhazikika" kumatheka chifukwa cha kuwongolera kolondola kwa kutentha ndi ukadaulo wotseka pafupipafupi, womwe umachepetsa phokoso la gawo pansi pamlingo waphokoso ndikuletsa kusagwirizana kwa mayiko a quantum panthawi yopatsira. Mbali yapawiri iyi ya "kusinthasintha + kukhazikika" sikuti imangowonjezera kuchuluka kwa kufalikira kwa mtunda waufupi mumanetiweki amderali (monga cholakwika chochepera 1% mkati mwa makilomita 50), komanso imathandizira kukhulupirika kwa makiyi pakupatsirana mtunda wautali mu maukonde olumikizana (monga ma kilomita opitilira zana m'midzi yozungulira) chitetezo" quantum communication network.