Chimurengasilicon photodetector（Si photodetector）
Chinoongorora chiedza che "silicon" che "revolutionary" (chinhu chinoona nezve "photodetector")Kana photodetector）, mashandiro anopfuura echinyakare
Nekuwedzera kwekuoma kwemamodeli ehungwaru hwekugadzira uye network dzakadzika dzetsinga, ma computing clusters anoisa kudiwa kwakanyanya pakutaurirana kwenetiweki pakati pema processors, memory uye computing nodes. Zvisinei, network dzechinyakare dze on-chip ne inter-chip dzakavakirwa pakubatanidza magetsi hadzina kukwanisa kusangana nekudiwa kuri kukura kwe bandwidth, latency uye kushandiswa kwesimba. Kuti vagadzirise dambudziko iri, tekinoroji yekubatanidza optical ine daro rayo refu rekutumira, kumhanya nekukurumidza, mabhenefiti ekushandisa simba zvakanyanya, zvishoma nezvishoma inova tariro yekuvandudzwa mune ramangwana. Pakati pavo, tekinoroji ye silicon photonic yakavakirwa paCMOS process inoratidza kugona kukuru nekuda kwekubatanidzwa kwayo kwakanyanya, mutengo wakaderera uye kunyatsogadzirwa. Zvisinei, kuzadzikiswa kwema photodetectors anoshanda zvakanyanya kuchiri kutarisana nematambudziko mazhinji. Kazhinji, ma photodetectors anofanirwa kubatanidza zvinhu zvine bhandi rakamanikana, senge germanium (Ge), kuti avandudze mashandiro ekuona, asi izvi zvinotungamirawo kune maitiro akaoma ekugadzira, mitengo yakakwira, uye goho risingachinji. Chinoongorora data che "all-silicon" chakagadzirwa nechikwata chekutsvaga data chakawana kumhanya kwekutumira data kwe160 Gb/s pachiteshi chimwe nechimwe pasina kushandisa germanium, ne "total transmission bandwidth" ye1.28 Tb/s, kuburikidza nedhizaini itsva ye "dual-microring resonator".
Munguva pfupi yapfuura, chikwata chevaongorori muUnited States chakaburitsa chidzidzo chitsva, chichizivisa kuti vabudirira kugadzira photodiode yeavalanche ine silicon yese (Chinoongorora mufananidzo cheAPDChip. Chip iyi ine simba repamusoro-soro uye ine mutengo wakaderera we photoelectric interface, iyo inotarisirwa kuti iwane data rinodarika 3.2 Tb pasekondi mune ramangwana re optical networks.
Kubudirira kwehunyanzvi: dhizaini ye resonator ine microring mbiri
Ma photodetector echinyakare anowanzova nekupesana kusingawirirani pakati pebandwidth uye reaction. Chikwata chekutsvagisa chakabudirira kuderedza kusawirirana uku nekushandisa dhizaini ye resonator ine microring mbiri uye zvakabudirira kudzikamisa crosstalk pakati penzira. Mhedzisiro yekuyedza inoratidza kutimudziyo wekuona mifananidzo wesilicon yeseine mhinduro yeA ye0.4 A/W, rima rakadzika se1 nA, bandwidth yakakwira ye40 GHz, uye crosstalk yemagetsi yakaderera zvikuru iri pasi pe -50 dB. Kushanda uku kwakafanana nema photodetector ekutengesa aripo akavakirwa pazvinhu zvesilicon-germanium neIII-V.
Kutarisa kune ramangwana: Nzira yekuvandudza mune network dze optical
Kubudirira kwekugadzirwa kwe "all-silicon photodetector" hakuna kungopfuura mhinduro yechinyakare mune tekinoroji chete, asiwo kwakachengetedza mari inosvika 40%, zvichigadzira nzira yekuzadzikiswa kwema "optical network" anomhanya uye asingadhuri mune ramangwana. Tekinoroji iyi inoenderana zvizere nemaitiro aripo eCMOS, ine goho rakakura uye goho guru, uye inotarisirwa kuva chikamu chakajairika mumunda wetekinoroji yesilicon photonics mune ramangwana. Mune ramangwana, timu yekutsvagisa inoronga kuramba ichivandudza dhizaini kuti iwedzere kuvandudza mwero wekunyudzwa uye mashandiro e "bandwidth" e "photodetector" nekuderedza kuwanda kwe "doping" uye kugadzirisa mamiriro ekuisa "implantation". Panguva imwe chete, tsvakiridzo iyi ichaongororawo kuti tekinoroji iyi yeall-silicon inogona sei kushandiswa kune ma "optical network" mumapoka eAI echizvarwa chinotevera kuti iwane bandwidth yakakwira, scalability uye kushanda zvakanaka kwesimba.
Nguva yekutumira: Kurume-31-2025