Ụdị terahertz multiplexer ọhụrụ amụbaala ikike data okpukpu abụọ ma kwalite nkwurịta okwu 6G na bandwidth na-enwetụbeghị ụdị ya na mfu data dị ala.
Ndị ọrụ nyocha ewebatala nnukwu band terahertz multiplexer nke na-abawanye ikike data ma na-eweta ọganihu mgbanwe na 6G na karịa. (Ebe E Si Nweta Foto: Getty Images)
Nkwukọrịta ikuku nke ọgbọ na-abịa, nke teknụzụ terahertz nọchiri anya ya, kwere nkwa ịgbanwe nnyefe data.
Sistemụ ndị a na-arụ ọrụ na terahertz ugboro ugboro, na-enye bandwidth enweghị atụ maka nnyefe data na nzikọrịta ozi ngwa ngwa. Agbanyeghị, iji ghọta nke ọma ihe a nwere ike ime, a ga-emerịrị nnukwu ihe ịma aka nka nka, ọkachasị n'ijikwa na iji ụdịdị dị adị nke ọma.
Ọganihu na-agbawa obi ekwupụtala ihe ịma aka a: nke mbụ ultra-wideband integrated terahertz polarization (de) multiplexer nwetara n'elu ikpo okwu silicon na-enweghị mkpụrụ.
Nhazi ohuru a lekwasịrị anya na sub-terahertz J band (220-330 GHz) na ebumnuche ịgbanwe nkwukọrịta maka 6G na gafere. Ngwaọrụ na-eme ka ikike data dị okpukpu abụọ nke ọma ka ọ na-edobe ọnụ ọgụgụ ọnwụ data dị ala, na-emeghe ụzọ maka netwọk ikuku dị elu nke ọma na ntụkwasị obi.
Ndị otu n'azụ ihe omume a gụnyere Prọfesọ Withawat Withayachumnankul sitere na Mahadum Adelaide's School of Electric and Mechanical Engineering, Dr. Weijie Gao, ugbu a onye nyocha postdoctoral na Mahadum Osaka, na Prọfesọ Masayuki Fujita.
Prọfesọ Withayachumnankul kwuru, "Polarization multiplexer nke a na-atụ aro na-enye ohere ka ebufe ọtụtụ iyi data n'otu oge n'ime otu ugboro ugboro, na-abawanye ikike data nke ọma okpukpu abụọ." Ọnụ ọgụgụ bandwit nke ngwaọrụ a nwetara bụ nke a na-enwetụbeghị ụdị ya n'ofe ugboro ọ bụla, na-anọchi anya nnukwu mmụba maka ọtụtụ ndị na-arụkọ ọrụ ọnụ.
Polarization multiplexers dị oké mkpa na nzikọrịta ozi ọgbara ọhụrụ ka ha na-eme ka ọtụtụ akara kesaa otu ugboro ugboro, na-eme ka ikike ọwa dịkwuo elu.
Ngwaọrụ ọhụrụ a na-enweta nke a site na iji conical directional couplers na anisotropic dị irè ọkara cladding. Ihe ndị a na-akwalite birefringence polarization, na-ebute oke mkpochapụ polarization dị elu (PER) na bandwit sara mbara - njirimara bụ isi nke sistemu nkwukọrịta terahertz dị mma.
N'adịghị ka atụmatụ ọdịnala na-adabere na ntụzịaka asymmetric waveguides dị mgbagwoju anya na ugboro ole, multiplexer ọhụrụ na-eji ihe mkpuchi anisotropic na-enwe naanị ntakịrị ndabere oge. Usoro a na-enye ohere zuru oke bandwidth zuru oke nke ndị conical couplers na-enye.
Nsonaazụ bụ obere bandwit dị nso na 40%, nkezi PER karịrị 20 dB, yana ntinye ntinye kacha nta nke ihe dịka 1 dB. Metrịk arụmọrụ ndị a karịrị nke atụmatụ ngwa anya na ngwa ngwa ndakwa nri dị ugbu a, nke na-enwekarị nsogbu bandwidth dị warara na mfu dị elu.
Ọrụ ndị otu nyocha ọ bụghị naanị na-akwalite arụmọrụ nke sistemu terahertz kamakwa na-atọkwa ntọala maka oge ọhụrụ na nkwukọrịta ikuku. Dr. Gao kwuru, "Nke a ọhụrụ ọhụrụ bụ isi ihe na-akwọ ụgbọala na imeghe ike nke terahertz nkwurịta okwu." Ngwa gụnyere mgbasa ozi vidiyo dị elu, eziokwu agbagoro agbagoro, yana netwọk ekwentị na-esote ọgbọ dịka 6G.
Ngwọta njikwa polarization terahertz ọdịnala, dị ka ndị ntụgharị ụdị orthogonal (OMTs) dabere na ntụzịaka igwe akụkụ anọ, na-eche oke oke ihu. Ahụmahụ ntuziaka ebili mmiri igwe na-abawanye mfu ohmic n'ogo dị elu, na usoro nrụpụta ha dị mgbagwoju anya n'ihi nnukwu ihe geometric chọrọ.
Multixers anya polarization, gụnyere ndị na-eji Mach-Zehnder interferometers ma ọ bụ kristal photonic, na-enye njikọ dị mma na mfu dị ala mana ọ na-achọkarị mgbanwe n'etiti bandwit, kọmpat, na mgbagwoju anya nrụpụta.
A na-eji ndị na-eso ụzọ ụzọ eme ihe n'ọtụtụ ebe na sistemu ngwa anya ma chọọ birefringence polarization siri ike iji nweta nha kọmpat yana PER dị elu. Otú ọ dị, a na-ejedebe ha site na bandwit dị warara na nghọta maka ikike mmepụta ihe.
Multixer ọhụrụ na-ejikọta uru nke conical directional couplers na irè ọkara cladding, na-emeri ndị a ike. Ihe mkpuchi anisotropic na-egosiputa nnukwu ihe mgbochi, na-eme ka PER dị elu gafee nnukwu bandwidth. Ụkpụrụ imewe a na-egosi ọpụpụ site na usoro omenala, na-enye ihe ngwọta dị mma na nke bara uru maka ntinye terahertz.
Nnwale nnwale nke multiplexer kwadoro arụmọrụ ya pụrụ iche. Ngwaọrụ ahụ na-arụ ọrụ nke ọma na 225-330 GHz nso, na-enweta bandwit nke 37.8% ka ọ na-ejigide PER karịa 20 dB. Nha ya na nkwekọ ya na usoro nrụpụta ọkọlọtọ na-eme ka ọ dị mma maka mmepụta oke.
Dr. Gao kwuru, sị, "Ihe ọhụrụ a abụghị nanị na-akwalite arụmọrụ nke usoro nkwurịta okwu terahertz kamakwa na-emeghe ụzọ maka netwọk ikuku dị elu dị ike na nke a pụrụ ịdabere na ya."
Ngwa nwere ike nke teknụzụ a na-agbatị karịa sistemụ nkwukọrịta. Site na imeziwanye ojiji ụdịdị dị iche iche, multiplexer nwere ike ibulite ọganihu na mpaghara dịka radar, onyonyo, na ịntanetị nke ihe. Prọfesọ Withayachumnankul kwuru, "N'ime afọ iri, anyị na-atụ anya ka a nabata teknụzụ terahertz ndị a n'ọtụtụ ebe ma jikọta ya na ụlọ ọrụ dị iche iche."
Enwere ike jikọta multiplexer n'enweghị ihe ọ bụla na ngwaọrụ ndị na-emepụta ọkụ mbụ nke ndị otu ahụ mepụtara, na-enye ọrụ nkwurịta okwu dị elu n'elu ikpo okwu jikọtara ọnụ. Ndakọrịta a na-egosipụta ngbanwe na scalability nke usoro ikpo okwu dielectric ebili mmiri dị irè.
Ebipụtala nchoputa nyocha nke otu ahụ n'akwụkwọ akụkọ Laser & Photonic Reviews, na-ekwusi ike mkpa ha dị na ịkwalite teknụzụ photonic terahertz. Prọfesọ Fujita kwuru, sị, "Site na imeri ihe mgbochi teknụzụ dị oke egwu, a na-atụ anya na ihe ọhụrụ a ga-akpali mmasị na ọrụ nyocha n'ọhịa."
Ndị na-eme nchọpụta na-atụ anya na ọrụ ha ga-akpali ngwa ọhụrụ na ọganihu nkà na ụzụ n'ime afọ ndị na-abịanụ, n'ikpeazụ na-eduga n'ụdị azụmahịa na ngwaahịa.
Nke a multiplexer na-anọchi anya nzọụkwụ dị ịrịba ama n'ihu n'ịkpọghe ike nke nkwurịta okwu terahertz. Ọ na-esetịpụ ọkọlọtọ ọhụrụ maka ngwaọrụ terahertz agbakwunyere yana metrik arụmọrụ ya na-enwetụbeghị ụdị ya.
Ka ọchịchọ nke netwọk nkwurịta okwu na-agba ọsọ na-aga n'ihu na-eto eto, ihe ọhụrụ dị otú ahụ ga-ekere òkè dị mkpa n'ịkpụzi ọdịnihu nke teknụzụ ikuku.
Oge nzipu: Dec-16-2024