New Ultra-wideband 997GHzelectro-optic modulator
Iyo itsva ye Ultra-wideband electro-optic modulator yakaisa bandwidth rekodhi ye997GHz.
Munguva pfupi yapfuura, boka rekutsvagisa muZurich, Switzerland, rakabudirira kugadzira Ultra-wideband electro-optic modulator inoshanda pamhepo kubva pa10 MHz kusvika 1.14 THz, ichiisa 3 dB bandwidth rekodhi pa997 GHz, inova kaviri rekodhi yazvino. Kubudirira uku kunokonzerwa nekugadzirwa kwakagadziridzwa kweplasma modulators, kuvhura nzvimbo nyowani yeramangwana terahertz photonic integrated circuits (PICs).
Parizvino, kutaurirana kusina waya kunonyanya kutsamira pama microwaves uye millimeter mafungu, asi zviwanikwa zviwanikwa zveaya ma frequency mabhendi anga ave kuzara. Kunyangwe kutaurirana kwemaziso kuine bandwidth hombe, haigone kushandiswa zvakananga kutenderera isina waya munzvimbo yemahara. Naizvozvo, kutaurirana kweTHz kunoonekwa se "bhiriji regoridhe" rinobatanidza mawaya uye fiber-optic network, ichipa mhinduro yakanaka ye6G uye yepamusoro-mwero masisitimu ekutaurirana. Dambudziko riri pakuti kuita kwearipo electro-optic modulators (sengeLiNbO₃ modulator, InGaAs, uye silicon-based materials) muTHz frequency band iri kure nekukwana. Iko kuderedzwa kwechiratidzo kuri pachena. Iyo inoshanda bandwidth inongosvika gumi nemana GHz uye iyo yakanyanya mutakuri frequency ndeye 100 GHz chete, iri kure nekusangana nezviyero zvinodiwa pakutaurirana kweTHz. Muchikamu chino, vatsvakurudzi vakagadzira itsva plasma-based modulator, kubudirira kuwedzera 3 dB bandwidth kusvika 997 GHz, iyo inopeta kaviri rekodhi yemazuva ano, sezvakaratidzwa mumufananidzo 1. Kubudirira uku hakusi kungoputsa miganhu yezvigadzirwa zvekare asiwo kunowedzera nzira yekuvandudza mune ramangwana rekukurukurirana kweTHz!
Mufananidzo 1 Plasma electro-optic modulator ine THz bandwidth
Mhedzisiro yekubudirira kweiyi nyowani mhando yemodulator iri mune yepamusoro-tech inonzi "plasma effect". Fungidzira kuti kana chiedza chikavhenekera pamusoro pesimbi nanostructure, inopindirana nemaerekitironi muzvinhu - maerekitironi oscillate pamwe chete achisundwa nechiedza, achiita rudzi rwakasiyana rwemafungu. Ndizvo chaizvo kuchinja uku kunogonesamodulatorkugadzirisa zviratidzo zvemaziso nepamusoro-soro. Mhedzisiro yekuedza inoratidza kuti modulator inoratidza yakanaka modulation maitiro mukati meiyo DC (yakananga ikozvino) kusvika 1.14 THz uye ine yakagadzikana kuwana mu frequency bhendi ye500 GHz kusvika 800 GHz.
Kuti udzidze zvakadzama maitiro ekushanda emodulator, timu yekutsvagisa yakagadzira yakadzama yakaenzana yedunhu modhi uye yakaongorora pesvedzero yeakasiyana maparamendi ezvimiro pakuita kwemodulator kuburikidza nekuenzanisa. Mhedzisiro yekuedza iri muchibvumirano chakanaka neiyo theoretical modhi, ichienderera ichisimbisa kugona uye kugadzikana kweiyo modulator. Mukuwedzera, vatsvakurudzi vakaronga chirongwa chekuvandudza. Zvinotarisirwa kuti kuburikidza neyakagadziridzwa dhizaini, iyo frequency yekushandisa yeiyi modulator inogona kudarika 1THz mune ramangwana, uye kunyange kusvika pamusoro pe2THz!
Ichi chidzidzo chinoratidza kugona kukuru kweplasmaelectro-optic modulatorsmuTHz kutaurirana uye photonic integrated circuits (PICs). Ichi chishandiso, chine maitiro ayo e-ultra-wideband, kushanda kwepamusoro uye kubatanidzwa, inopa mhinduro nyowani yeTHz chiratidzo chemodulation. Mune ramangwana, nekuwedzera kwekugadzirisa kwedhizaini yedhizaini uye maitiro ekugadzira, iyo frequency yekushandisa yeplasma modulators inotarisirwa kudarika 2 THz, kuwana yakakwirira data data uye yakafara spectrum kufukidzwa. Kuuya kwenguva yeTHz hakungorevi kukurumidza kufambisa data uye kunyatsonzwisisa kugona, asi zvakare kuchasimudzira kubatanidzwa kwakadzama kweminda yakawanda senge wireless communication, optical computing, uye kungwara kuona. Kubudirira kweplasma electro-optic modulators inogona kuve nhanho yakakosha inotungamira kuvandudzwa kweTHz tekinoroji, ichipa hwaro hwekubatana kwekumhanya kweiyo ramangwana ruzivo nzanga.
Nguva yekutumira: Jun-09-2025