Nidaamka walxaha isku dhafan ee Photonic (PIC).

Nidaamka walxaha isku dhafan ee Photonic (PIC).

Silicon photonics waa edbin adeegsata qaab-dhismeedyo qorshaysan oo ku salaysan agabka silikoon si ay u toosiyaan iftiinka si loo gaadho hawlo kala duwan. Waxaan halkan diiradda saareynaa adeegsiga sawir-qaadayaasha silikoon ee abuurista gudbinta iyo qaatayaasha isgaarsiinta fiber optic-ga. Maaddaama baahida loo qabo in lagu daro gudbin badan oo la bixiyay bandwidth la siiyay, raad la bixiyay, iyo kharashka la bixiyay ayaa kor u kacaya, sawir-qaadista siliconku waxay noqotaa mid dhaqaale ahaan fiican. Dhinaca indhaha,farsamada is dhexgalka photonicwaa in la isticmaalo, iyo transceivers intooda badan maanta waxaa la dhisay iyadoo la isticmaalayo kala duwan ee LiNbO3/planar light-modulators (PLC) iyo kuwa qaata InP/PLC.

Jaantuska 1: Wuxuu muujiyaa hababka agabka isku-dhafan ee sawir-qaadista (PIC).

Jaantuska 1 wuxuu muujinayaa hababka walxaha PIC ee ugu caansan. Bidix ilaa midig waa silica ku salaysan silikoon PIC (sidoo kale loo yaqaan PLC), insulator-based PIC (silicon photonics), lithium niobate (LiNbO3), iyo III-V group PIC, sida InP iyo GaAs. Warqadani waxay diiradda saaraysaa sawir-qaadista silikoon-ku-saleysan. Gudahasawiro silikoon, Ilaysku inta badan waxa uu ku socdaa silikoon, kaas oo leh faraqa xadhig aan toos ahayn oo ah 1.12 volts elektaroonik (oo leh hirarka 1.1 microns). Silikoon waxaa lagu beeraa qaab kiristaalo saafi ah oo foornooyinka ka dibna la gooyaa wafers, kuwaas oo maanta sida caadiga ah 300 mm dhexroor. Dusha sare ee wafer waa oksaydhaysan si ay u samaysato lakab silica ah. Mid ka mid ah waferrada waxaa lagu duqeeyaa atamka hydrogen-ka ilaa qoto dheer. Labada wafer ayaa markaas lagu dhex daray meel faaruq ah oo lakabka oksaydhkooda ayaa isku xidhan. Shirku wuxuu ku jabaa xariiqda implantation ee hydrogen. Lakabka silikoonka ee dildilaaca ayaa markaa la dhalaaliyaa, ugu dambayntiina waxa uu ka tagayaa lakab khafiif ah oo crystalline ah oo ku yaal dusha sare ee wafer silikoon “xakameysa” oo aan nadiif ahayn oo ku taal dusha sare ee lakabka silica. Waveguides ayaa laga sameeyay lakabkan khafiifka ah ee crystalline. In kasta oo waferradan silikoon-ku-saleysan (SOI) ay ka dhigayaan hagaha mawjadaha sawir-qaadista ee silikoon khasaaraha hooseeya, dhab ahaantii waxaa badanaa loo adeegsadaa wareegyada CMOS ee hooseeya sababtoo ah qulqulka hooseeya ee hadda ay bixiyaan.

Waxaa jira qaabab badan oo suurtagal ah oo ah mawjadaha muraayadaha indhaha ee silikoon ku salaysan, sida ku cad sawirka 2. Waxay u dhexeeyaan mikroscale germanium-doped silica waveguides ilaa nanoscale Silicon Wire waveguides. Marka la isku daro germanium, waa suurtagal in la sameeyosawirqaadayaashaiyo nuugista korantadamodulators, iyo laga yaabee xitaa cod-weyneyaasha indhaha. By doping silicon, anmodulator indhahawaa la samayn karaa. Qeybta hoose ee bidix ilaa midig waa: waveguide silikoon silig, waveguide silicon nitride, waveguide silicon oxynitride, waveguide silikoon qaro weyn, waveguide silicon nitride khafiif ah iyo waveguide silikoon doped. Xagga sare, bidix ilaa midig, waxaa yaal modulators depletion, germanium photodetectors, iyo germaniumamplifiers indhaha.

Jaantus 2: Qaybta isdhaafka ee taxanaha waveguide indhaha ku salaysan silikoon, oo muujinaya khasaaraha faafinta caadiga ah iyo tusmooyinka wax-soo-celinta.