Sisitimu yezvinhu zve Photonic integrated circuit (PIC)

Sisitimu yezvinhu zve Photonic integrated circuit (PIC)

Silicon photonics inyanzvi inoshandisa mapuranga akavakirwa pazvinhu zvesilicon kutungamira chiedza kuti chiite mabasa akasiyana-siyana. Pano tinotarisa pakushandiswa kwesilicon photonics mukugadzira matransmitter nemareceivers ekutaurirana kwefiber optic. Sezvo kudiwa kwekuwedzera kutumira kune imwe bandwidth, nhanho yakatarwa, uye mutengo wakapihwa uchiwedzera, silicon photonics inova yakanaka muhupfumi. Kune chikamu che optical,tekinoroji yekubatanidza photonicinofanira kushandiswa, uye ma transceiver mazhinji akabatana nhasi anogadzirwa achishandisa ma modulators akasiyana eLiNbO3/ planar light-wave circuit (PLC) uye ma InP/PLC receivers.

Mufananidzo 1: Inoratidza masisitimu ezvinhu anoshandiswa zvakanyanya e photonic integrated circuit (PIC).

Mufananidzo 1 unoratidza masisitimu ePIC anonyanya kufarirwa. Kubva kuruboshwe kuenda kurudyi kune silicon-based silica PIC (inozivikanwawo sePLC), silicon-based insulator PIC (silicon photonics), lithium niobate (LiNbO3), uye III-V group PIC, dzakadai seInP neGaAs. Pepa iri rinotarisa pane silicon-based photonics. Musilicon photonics, chiratidzo chechiedza chinonyanya kufamba musilicon, ine mukana webhandi usina kunanga we1.12 electron volts (ine wavelength ye1.1 microns). Silicon inokura muchimiro chemakristaro akachena mumaovheni uye yozochekwa kuita mawafer, ayo nhasi anowanzova 300 mm mudhayamita. Pamusoro pewafer inooxidized kuti iite silica layer. Rimwe remawafer rinoputirwa nemaatomu ehydrogen kusvika pakadzika kwakati. Mawafer maviri acho anobva abatanidzwa muvacuum uye ma oxide layers awo anobatana. Kuungana kunotyoka pamwe chete ne hydrogen ion implantation line. Silicon layer iri paburi inozokwenenzverwa, zvichizosiya crystalline layer yakatetepa yeSi pamusoro pesilicon "handle" wafer pamusoro pesilica layer. Mawaveguides anoumbwa kubva pane iyi crystalline layer yakatetepa. Kunyange zvazvo mawafer aya esilicon-based insulator (SOI) achiita kuti mawaveguides esilicon photonics aite zvishoma, anonyanya kushandiswa mumaCMOS circuits ane simba shoma nekuda kwe low leakage current yaanopa.

Kune mhando dzakawanda dzema "silicon-based optical waveguides", sezvakaratidzwa muMufananidzo 2. Anotangira pama "microscale germanium-doped silica waveguides" kusvika kuma "nanoscale Silicon Wire waveguides". Nekusanganisa germanium, zvinokwanisika kugadziraphotodetectorsuye kunyudzwa kwemagetsimamodulator, uye pamwe kunyange ma amplifiers e optical. Nekushandisa silicon, chinhu chinobatsira pakugadziramodulator yemazisoinogona kugadzirwa. Pasi kubva kuruboshwe kuenda kurudyi pane: silicon wire waveguide, silicon nitride waveguide, silicon oxynitride waveguide, thick silicon ridge waveguide, thin silicon nitride waveguide uye doped silicon waveguide. Pamusoro, kubva kuruboshwe kuenda kurudyi, pane depletion modulators, germanium photodetectors, uye germaniumma amplifiers emaziso.

Mufananidzo 2: Chikamu che "silicon-based optical waveguide series", chinoratidza kurasikirwa kwakajairika kwekupararira uye ma "refractive indices".