Phetoho ea silicon photodetector (Si photodetector)

Phetohosilicon photodetector(Ke photodetector)

Phetoho tsohle tsa silicon photodetector.Ke photodetector）, tshebetso e fetang ya setso

Ka ho rarahana ho ntseng ho eketseha ha mehlala ea bohlale ba maiketsetso le marang-rang a tebileng a methapo ea kutlo, lihlopha tsa likhomphutha li beha litlhoko tse phahameng mabapi le puisano ea marang-rang lipakeng tsa li-processor, memori le li-compute node. Leha ho le joalo, marang-rang a setso a on-chip le inter-chip a ipapisitseng le likhokahano tsa motlakase ha a khona ho fihlela tlhoko e ntseng e hola ea bandwidth, latency le tšebeliso ea matla. E le ho rarolla bothata bona, theknoloji ea optical interconnection le sebaka se selelele sa phetisetso, lebelo le potlakileng, melemo e phahameng ea matla a matla, butle-butle e fetoha tšepo ea tsoelo-pele ea nako e tlang. Har'a bona, theknoloji ea silicon photonic e thehiloeng ts'ebetsong ea CMOS e bontša bokhoni bo boholo ka lebaka la ho kopanya ha eona ho phahameng, theko e tlaase le ho nepahala ha ho sebetsa. Leha ho le joalo, ho elelloa ha li-photodetectors tse sebetsang hantle haholo ho ntse ho tobana le mathata a mangata. Ka tloaelo, li-photodetectors li hloka ho kopanya lisebelisoa tse nang le lekhalo le moqotetsane la lihlopha, tse kang germanium (Ge), ho ntlafatsa ts'ebetso ea ho lemoha, empa sena se boetse se lebisa lits'ebetsong tse rarahaneng tsa tlhahiso, litšenyehelo tse phahameng, le lihlahisoa tse sa tsitsang. Sesebelisoa sa photodetector sa silicon se entsoeng ke sehlopha sa lipatlisiso se fihletse lebelo la phetisetso ea data ea 160 Gb / s mocha ka mong ntle le tšebeliso ea germanium, ka kakaretso ea phetisetso ea bandwidth ea 1.28 Tb / s, ka mokhoa o mocha oa li-dual-microring resonator.

Haufinyane tjena, sehlopha se kopaneng sa liphuputso United States se phatlalalitse phuputso e ncha, se phatlalatsang hore se atlehile ho etsa "avalanche photodiode" ea silicon.APD photodetector) chip. Chip ena e na le ultra-high speed le theko e tlaase ea photoelectric interface, e lebeletsoeng ho finyella ho feta 3.2 Tb ka motsotsoana o fetisetsa data ho marang-rang a optical nakong e tlang.

Katleho ea tekheniki: moralo oa resonator oa microring habeli

Li-photodetectors tsa setso hangata li na le likhohlano tse sa lumellaneng lipakeng tsa bandwidth le karabelo. Sehlopha sa bafuputsi se atlehile ho kokobetsa khohlano ena ka ho sebelisa moralo oa resonator oa microring habeli le ho hatella ka nepo lipuisano tse lipakeng tsa likanale. Liphetho tsa liteko li bontša horesilicon photodetector eohlee na le karabelo ea 0.4 A/W, maqhubu a lefifi a tlase joalo ka 1 nA, bandwidth e phahameng ea 40 GHz, le crosstalk e tlase haholo ea motlakase e ka tlase ho −50 dB. Ts'ebetso ena e bapisoa le li-photodetectors tsa hajoale tsa khoebo tse thehiloeng ho thepa ea silicon-germanium le III-V.

Ho sheba bokamoso: Tsela ea ho innovation ho marang-rang a optical

Tsoelo-pele e atlehileng ea "silicon photodetector" ha ea ka ea feta feela tharollo e tloaelehileng ea theknoloji, empa hape e fihletse chelete ea ho boloka chelete e ka bang 40% ka litšenyehelo, ho bula tsela ea ho phethahala ha marang-rang a mahlo a phahameng, a theko e tlaase nakong e tlang. Theknoloji e lumellana ka botlalo le mekhoa e teng ea CMOS, e na le chai e ngata haholo le lihlahisoa, 'me e lebelletsoe ho ba karolo e tloaelehileng lefapheng la theknoloji ea silicon photonics nakong e tlang. Nakong e tlang, sehlopha sa lipatlisiso se rera ho tsoela pele ho ntlafatsa moralo ho ntlafatsa lebelo la ho monya le ts'ebetso ea bandwidth ea photodetector ka ho fokotsa ho tsepamisa maikutlo ho doping le ho ntlafatsa maemo a ho kenngoa. Ka nako e ts'oanang, lipatlisiso li tla boela li hlahlobe hore na theknoloji ena ea silicon eohle e ka sebelisoa joang ho marang-rang a optical ho lihlopha tsa AI tsa moloko o latelang ho finyella bandwidth e phahameng, scalability le matla a matla.