Chimurenga chesilicon photodetector (Si photodetector)

Chimurengasilicon photodetector(Ndiye photodetector)

Shanduko yese-silicon photodetector.Ndiwo photodetector）, kuita kupfuura kwechinyakare

Nekuwedzera kuomarara kwemaitiro ehungwaru emhando uye yakadzika neural network, masumbu emakomputa anoisa zvakanyanya kudiwa pakutaurirana kwenetiweki pakati pema processor, ndangariro uye compute node. Nekudaro, yechinyakare pa-chip uye inter-chip network yakavakirwa pamagetsi ekubatanidza yatadza kuzadzisa kudiwa kuri kukura kwebandwidth, latency uye mashandisiro emagetsi. Kuti ugadzirise iyi bhodhoro, tekinoroji yekubatanidza tekinoroji nehurefu hwayo hwekutapurirana chinhambwe, kukurumidza kukurumidza, mabhenefiti emagetsi epamusoro, zvishoma nezvishoma inova tariro yekuvandudza mune ramangwana. Pakati pavo, silicon photonic tekinoroji yakavakirwa paCMOS maitiro inoratidza kugona kukuru nekuda kwekubatanidzwa kwayo kwepamusoro, mutengo wakaderera uye kunyatsogadzirisa. Zvisinei, kuitika kwepamusoro-kushanda photodetectors kuchiri kutarisana nematambudziko akawanda. Kazhinji, mafotodetectors anofanirwa kubatanidza zvinhu zvine bhendi rakamanikana, senge germanium (Ge), kuti ivandudze mashandiro ekuona, asi izvi zvinotungamira kune dzakaoma maitiro ekugadzira, mitengo yakakwira, uye goho risingaite. Yese-silicon photodetector yakagadziridzwa neboka rekutsvagisa yakawana yekumhanyisa data ye160 Gb/s pachiteshi pasina kushandisa germanium, ine yakazara transmission bandwidth ye1.28 Tb/s, kuburikidza nehunyanzvi hwekuita mbiri-microring resonator dhizaini.

Munguva ichangopfuura, boka rekutsvakurudza rakabatana muUnited States rakaburitsa chidzidzo chitsva, ichizivisa kuti vakabudirira kugadzira all-silicon avalanche photodiode (APD photodetector) chip. Iyi chip ine ultra-high speed uye yakaderera-inodhura photoelectric interface basa, iyo inotarisirwa kuwana zvinopfuura 3.2 Tb pasekondi yekufambisa data mune ramangwana optical network.

Kubudirira kwehunyanzvi: kaviri microring resonator dhizaini

Mapikicha echinyakare anowanzo kuve nekupokana kusingawirirane pakati pebandwidth uye kupindura. Chikwata chekutsvagisa chakabudirira kudzikamisa kupokana uku nekushandisa kaviri-microring resonator dhizaini uye nekudzvanyirira zvine mutsindo kutaura-pakati pakati pezviteshi. Experimental results inoratidza kutiyose-silicon photodetectorine Mhinduro ye0.4 A/W, yakasviba yakadzika se1 nA, yakakwirira bandwidth ye40 GHz, uye yakanyanya kuderera magetsi crosstalk isingasviki -50 dB. Kuita uku kunofananidzwa neazvino kutengeserana photodetectors zvichibva pasilicon-germanium uye III-V zvinhu.

Kutarisa kune ramangwana: Iyo Nzira yekuvandudza mune optical network

Kubudirira kwekusimudzira kwese-silicon photodetector hakuna kungopfuura mhinduro yechinyakare mune tekinoroji, asi zvakare yakawana kuchengetedza kweinenge 40% mumutengo, ichigadzira nzira yekuzadzikiswa kwepamusoro-kumhanya, yakaderera-inodhura optical network mune ramangwana. Iyo tekinoroji inoenderana zvizere neiyo iripo CMOS maitiro, ine goho rakanyanya uye goho, uye inotarisirwa kuve chikamu chakajairwa mumunda wesilicon photonics tekinoroji mune ramangwana. Mune ramangwana, timu yekutsvagisa inoronga kuenderera mberi nekukwirisa dhizaini kuti iwedzere kuvandudza mwero wekunyura uye bandwidth kuita kweiyo photodetector nekudzikisa kutarisisa kwedoping nekuvandudza mamiriro ekudyara. Panguva imwecheteyo, tsvakiridzo ichaongororawo kuti iyi yese-silicon tekinoroji inogona kushandiswa sei kune optical network mune inotevera-chizvarwa AI masumbu kuti awane yakakwirira bandwidth, scalability uye kushanda nesimba.