Mtundu watsopano wa terahertz multiplexer wachulukitsa kuchuluka kwa data ndikuwonjezera kulumikizana kwa 6G ndi bandwidth yomwe sinachitikepo komanso kutayika kochepa kwa data.
Ofufuza abweretsa gulu lalikulu kwambiri la terahertz multiplexer lomwe limachulukitsa kuchuluka kwa data ndikubweretsa kupita patsogolo kwa 6G ndi kupitilira apo. (Chithunzi: Getty Images)
Kulankhulana opanda zingwe kwa m'badwo wotsatira, woyimiridwa ndi ukadaulo wa terahertz, akulonjeza kuti asintha kutumiza kwa data.
Makinawa amagwira ntchito pafupipafupi pa terahertz, ndikupereka ma bandwidth osayerekezeka kuti atumize ndi kulumikizana mwachangu kwambiri. Komabe, kuti tikwaniritse kuthekera kumeneku, zovuta zazikulu zaukadaulo ziyenera kuthetsedwa, makamaka pakuwongolera ndi kugwiritsa ntchito bwino mawonekedwe omwe alipo.
Kupita patsogolo kochititsa chidwi kwathetsa vutoli: yoyamba yowonjezereka yowonjezereka ya terahertz polarization (de) multiplexer yodziwika pa nsanja ya silikoni yopanda gawo.
Kapangidwe katsopano kameneka kamayang'ana gulu la sub-terahertz J (220-330 GHz) ndipo cholinga chake ndikusintha kulumikizana kwa 6G ndi kupitilira apo. Chipangizocho chimawirikiza kawiri kuchuluka kwa data ndikusunga kutayika kwa data pang'ono, ndikutsegulira njira yabwino komanso yodalirika yama netiweki opanda zingwe.
Gulu lomwe likutsatira izi ndi Pulofesa Withawat Withayachumnankul wochokera ku yunivesite ya Adelaide's School of Electrical and Mechanical Engineering, Dr. Weijie Gao, yemwe tsopano ndi wofufuza za postdoctoral ku yunivesite ya Osaka, ndi Pulofesa Masayuki Fujita.
Pulofesa Withayachumnankul adati, "Polarization multiplexer imalola kuti mitsinje ingapo ya data ifalitsidwe nthawi imodzi mu band ya ma frequency omwewo, ndikuchulukitsa kuchuluka kwa data." Chiwopsezo cha bandwidth chomwe chidaperekedwa ndi chipangizocho sichinachitikepo pama frequency aliwonse, kuyimira kudumpha kwakukulu kwa ma multiplexers ophatikizika.
Polarization multiplexers ndizofunikira pakulankhulana kwamakono chifukwa zimathandiza kuti ma siginecha angapo azitha kugawana ma frequency band, kupititsa patsogolo mphamvu ya tchanelo.
Chipangizo chatsopanochi chimakwaniritsa izi pogwiritsa ntchito ma conical directional couplers ndi anisotropic yogwira ntchito pakati. Zigawozi zimathandizira kuti polarization birefringence, zomwe zimapangitsa kuti pakhale chiŵerengero chachikulu cha kutha kwa polarization (PER) ndi bandwidth yotakata - mikhalidwe yofunika kwambiri yamakina olumikizirana a terahertz.
Mosiyana ndi mapangidwe achikhalidwe omwe amadalira mafunde ovuta komanso odalira pafupipafupi asymmetric waveguides, multiplexer yatsopanoyo imagwiritsa ntchito anisotropic cladding ndikudalira pang'ono pafupipafupi. Njira iyi imathandizira kwathunthu bandwidth yokwanira yoperekedwa ndi ma conical couplers.
Zotsatira zake ndi bandwidth yocheperako pafupi ndi 40%, pafupifupi PER yopitilira 20 dB, ndi kutayika kochepa koyika pafupifupi 1 dB. Ma metrics ochita izi amaposa apangidwe omwe alipo kale ndi ma microwave, omwe nthawi zambiri amakhala ndi bandwidth yocheperako komanso kutayika kwakukulu.
Ntchito ya gulu lofufuza sikungowonjezera luso la makina a terahertz komanso imayala maziko a nthawi yatsopano yolumikizirana opanda zingwe. Dr. Gao adanena kuti, "Zatsopanozi ndizofunikira kwambiri pakutsegula kuthekera kwa kulankhulana kwa terahertz." Mapulogalamuwa akuphatikiza mavidiyo otanthauzira kwambiri, zenizeni zenizeni, ndi maukonde am'badwo wotsatira ngati 6G.
Mayankho achikhalidwe a terahertz polarization management, monga ma orthogonal mode transducers (OMTs) otengera ma waveguide achitsulo amakona anayi, amakumana ndi zolephera zazikulu. Kukumana ndi ma waveguides azitsulo kumawonjezera kutayika kwa ma ohmic pama frequency apamwamba, ndipo njira zawo zopangira zimakhala zovuta chifukwa cha zofunikira za geometric.
Optical polarization multiplexers, kuphatikizapo omwe amagwiritsa ntchito Mach-Zehnder interferometers kapena photonic crystals, amapereka kusakanikirana kwabwinoko komanso kutayika kochepa koma nthawi zambiri kumafuna kusinthanitsa pakati pa bandwidth, compactness, ndi kupanga zovuta.
Ma Directional couplers amagwiritsidwa ntchito kwambiri pamakina owoneka bwino ndipo amafunikira polarization birefringence kuti akwaniritse kukula kocheperako komanso PER yayikulu. Komabe, amachepetsedwa ndi bandwidth yopapatiza komanso kukhudzidwa kwa zololera zopanga.
Multiplexer yatsopano imaphatikiza ubwino wa ma conical directional couplers ndi ma cladding ogwira mtima apakati, kugonjetsa izi. Chovala cha anisotropic chimawonetsa kuwirikizana kwakukulu, kuwonetsetsa kuti PER ikukwera pama bandwidth ambiri. Mfundo yopangira izi ikuwonetsa kuchoka ku njira zachikhalidwe, kupereka yankho losavuta komanso lothandiza pakuphatikiza kwa terahertz.
Kutsimikizira koyesera kwa multiplexer kunatsimikizira ntchito yake yapadera. Chipangizochi chimagwira ntchito bwino mumtundu wa 225-330 GHz, kukwaniritsa bandwidth yochepa ya 37.8% ndikusunga PER pamwamba pa 20 dB. Kukula kwake kophatikizika komanso kugwirizana ndi njira zopangira zokhazikika kumapangitsa kuti ikhale yoyenera kupanga zambiri.
Dr. Gao anati, "Kukonzekera kumeneku sikungowonjezera luso la njira zoyankhulirana za terahertz komanso zimapangitsa kuti pakhale njira zowonjezera komanso zodalirika zogwiritsa ntchito ma waya opanda zingwe."
Zomwe zitha kugwiritsidwa ntchito ndiukadaulowu zimapitilira kupitilira njira zolumikizirana. Pakuwongolera kugwiritsa ntchito ma sipekitiramu, multiplexer imatha kupititsa patsogolo madera monga radar, kujambula, ndi intaneti ya Zinthu. "Pakadutsa zaka khumi, tikuyembekeza kuti matekinoloje a terahertz alandiridwa ndikuphatikizidwa m'mafakitale osiyanasiyana," adatero Pulofesa Withayachumnankul.
Multiplexer imathanso kuphatikizidwa bwino ndi zida zowunikira zakale zopangidwa ndi gulu, zomwe zimathandizira kulumikizana kwapamwamba papulatifomu yolumikizana. Kugwirizana kumeneku kukuwonetsa kusinthasintha komanso kusinthika kwa nsanja yogwira bwino ya dielectric waveguide.
Zotsatira za kafukufuku wa gululi zasindikizidwa mu nyuzipepala ya Laser & Photonic Reviews, kutsindika kufunika kwawo pakupititsa patsogolo luso la photonic terahertz. Pulofesa Fujita anati, "Pogonjetsa zopinga zovuta zamakono, zatsopanozi zikuyembekezeka kuchititsa chidwi ndi kufufuza ntchito m'munda."
Ofufuzawo akuyembekeza kuti ntchito yawo idzalimbikitsa kugwiritsa ntchito kwatsopano komanso kupititsa patsogolo kwaukadaulo m'zaka zikubwerazi, zomwe zimabweretsa ma prototypes ndi zinthu zamalonda.
Multiplexer iyi ikuyimira gawo lalikulu lakutsogolo pakutsegula kuthekera kwa kulumikizana kwa terahertz. Imayika mulingo watsopano wa zida zophatikizika za terahertz ndi ma metrics ake omwe sanachitikepo.
Pamene kufunikira kwa maukonde othamanga kwambiri, othamanga kwambiri akupitirira kukula, zatsopano zoterezi zidzathandiza kwambiri kupanga tsogolo la teknoloji yopanda zingwe.
Nthawi yotumiza: Dec-16-2024