Rau silicon-based Optoelectronics, silicon photodetectors (Si Photodetector)

Rau silicon-based optoelectronics, silicon photodetectors

PhotodetectorsHloov chaw teeb pom kev rau cov cim hluav taws xob, thiab raws li cov ntaub ntawv hloov hluav taws xob txuas ntxiv txhim kho, cov chaw ntsuas hluav taws xob tau ua tus yuam sij rau cov chaw nruab rau tom ntej no. Kab lus no yuav muab cov ntsiab lus qhia txog kev ua kom zoo siab ntawm cov photoDetectors siab, nrog rau cov silicon raws li germanium (ge lossis si photodetector)Silicon PhotodetectorsRau kev sib xyaw optoelectronics technology.

German yog ib qho khoom siv txaus nyiam rau ze rau lub teeb pom kev zoo rau cov txheej txheem silicon vim tias nws muaj zog heev nqus ntawm kev sib tw ntawm kev sib tham wavelengths. Cov qauv geodetor feem ntau yog tus pin diodetector

Ntaus ntawv qauv daim duab 1 qhia tau qhov sib npaug ntsug pin ge lossisSI PhotodetectorTus qauv:

Cov yam ntxwv tseem ceeb muaj xws li: germanium abwsbing txheej zus rau silicon substrate; Siv los sau p thiab n kev sib tiv tauj cov neeg nqa khoom; WaveGuide Coupling rau kev nqus lub teeb ua kom zoo.

Kev loj hlob tuaj yeem: Loj hlob zoo germanium ntawm silicon yog qhov nyuaj vim yog 4.2% lattice tsis sib xws ntawm ob cov khoom. Ib qho txheej txheem kev loj hlob feem ntau yog siv: tsawg kub (300-400 ° C) tsis kub (siab txog 600 ° C) Deposition ntawm Germanium. Cov qauv no yuav pab tswj cov xov uas tau cuam tshuam los ntawm kev ua haujlwm tsis sib haum. Kev tshaj tawm txoj kev loj hlob ntawm 800-900 ° C txuas txo cov threading dislocation disline qens txog li 10 ^ 7 cm ^ -2. Cov yam ntxwv ua tau: Qhov ge tshaj tshaj plaws yog GE / si Pin photodetector tuaj yeem ua tiav: kev qhia,> 0.8A / w ntawm 1550 nm; Bandwidth,> 60 GHz; Tsaus tam sim no, <1 μA ntawm -1 V Bias.

Kev sib xyaw nrog silicon raws li optoelectronics platform

Kev sib koom ua ke ntawmHigh-ceev photodetectorsNrog silicon-based optoelectronics platforms enables siab hloov kho kho kho qhov muag transcexerivers thiab sib tshuam. Ob txoj kev koom ua ke tseem ceeb yog raws li hauv qab no: Kev sib koom ua ke hauv ntej, feol), qhov twg lub photodetector thiab qhov chaw ua haujlwm nyob rau hauv sici-antuction rau kev kub siab, tab sis noj chaccle. Rov qab-kawg kev koom ua ke (babol). PHOTODETSORS tau tsim tawm rau saum cov hlau kom tsis txhob cuam tshuam nrog CMOS, tab sis tau txwv rau kev ua kom qis dua qhov chaw kub.

Daim duab 2: Kev ua raws thiab bandwidth ntawm lub high-ceev ge / Si Photodetector

Cov ntaub ntawv thov cov ntaub ntawv

High-ceev photoDetectors yog ib qho tseem ceeb tivthaiv nyob rau hauv cov tiam tom ntej ntawm cov ntaub ntawv nruab nrab kev sib txuas ua ke. Cov ntawv thov tseem ceeb muaj xws li: Transcecivers: 100g, 400g thiab tus nqi siab dua, siv PAM-4 kev hloov kho; IbHigh bandwidth photodetector(> 50 GHZ) yuav tsum muaj.

Silicon-based Optoelectronic sib xyaw Circuit Court: Monolithic sib koom tes nrog cov qauv thiab lwm yam; Ib qho kev cog lus, kev ua haujlwm siab optical.

Faib cov khoom lag luam: Kho kho kho kho kho qhov muag ntawm kev faib tawm cov cim ntsuas, chaw cia khoom, thiab chaw khaws khoom; Tsav txoj kev thov kom muaj zog-txuag, high-bandwidth photodetectors.

Yav tom ntej saib xyuas

Lub neej tom ntej ntawm kev sib xyaw Optoelectronic High-ceev photodetectors yuav qhia cov ncauj lus hauv qab no:

Cov ntaub ntawv ntau dua: Tsav kev txhim kho 800g thiab 1.6T transceiversivers; Photodetectors nrog bandwidths ntau dua 100 ghaz yuav tsum muaj.

Txhim kho kev sib xyaw ua ke: Kev sib koom ua ke ib zaug ntawm III-V khoom thiab silicon; Advanced 3D koom kev sib xyaw thev naus laus zis.

Cov ntaub ntawv tshiab: Tshawb nrhiav ob-seem cov ntaub ntawv (xws li graphene) rau cov teeb pom kev zoo; Ib pab pawg IV tshiab tso rau ncua nthwv wavelengtengion.

Cov ntawv thov nthuav tawm: Lub hau thiab lwm cov kev siv hnov ​​yog tsav kev txhim kho Apd; Microwave photon cov ntawv thov xav tau cov ntaub ntawv siab li caskodetectors.

High-ceev photoDetectors, tshwj xeeb yog G Photodetectors, tau dhau los ua tus neeg tsav tsheb tseem ceeb ntawm silicon-based Optoelectronics thiab tom ntej-qib kev sib txuas lus kho tshiab. Txuas ntxiv ua ntej nyob rau hauv cov ntaub ntawv, ntaus ntawv tsim, thiab kev koom ua ke thev naus laus zis yog ib qho tseem ceeb kom tau raws li cov chaw nruab yav tom ntej thiab kev sib txuas xov tooj. Raws li teb txuas ntxiv mus hloov zuj zus, peb tuaj yeem cia siab tias yuav pom cov photodetectors nrog bandwidth ntau dua, cov suab qis dua nrog hluav taws xob thiab lub pofonic ci.