Sistimi ea thepa ea potoloho e kopantsoeng ea Photonic (PIC)

Sistimi ea thepa ea potoloho e kopantsoeng ea Photonic (PIC)

Silicon photonics ke lefapha le sebelisang meaho e planar e thehiloeng ho thepa ea silicon ho tataisa leseli ho fihlela mesebetsi e fapaneng. Mona re tsepamisa maikutlo ts'ebelisong ea li-photonics tsa silicon ho theheng li-transmitter le li-receiver bakeng sa puisano ea fiber optic. Ha tlhoko ea ho eketsa phetiso e eketsehileng ho bandwidth e fanoeng, sebaka se fanoeng, le litšenyehelo tse fanoeng li ntse li eketseha, li-photonics tsa silicon li ba le botsitso haholoanyane moruong. Bakeng sa karolo ea optical,theknoloji ea kopanyo ea photonice tlameha ho sebediswa, mme boholo ba di-transceiver tse kopaneng kajeno di hahilwe ho sebediswa di-modulator tse arohaneng tsa LiNbO3/planar light-wave circuit (PLC) le di-receiver tsa InP/PLC.

Setšoantšo sa 1: Se bonts'a litsamaiso tsa thepa tse sebelisoang hangata tsa potoloho e kopantsoeng ea photonic (PIC).

Setšoantšo sa 1 se bontša litsamaiso tse tsebahalang haholo tsa thepa ea PIC. Ho tloha ka letsohong le letšehali ho ea ho le letona ho na le silica PIC e thehiloeng ho silicon (e tsejoang hape e le PLC), insulator e thehiloeng ho silicon PIC (silicon photonics), lithium niobate (LiNbO3), le sehlopha sa III-V PIC, tse kang InP le GaAs. Pampiri ena e shebane le li-photonics tse thehiloeng ho silicon.li-photonic tsa silicon, letshwao la lesedi le tsamaya haholoholo ka silicon, e nang le lekhalo la sehlopha se sa tobang sa di-volt tsa dielektrone tse 1.12 (ka bolelele ba di-micron tse 1.1). Silicon e hodiswa ka sebopeho sa dikristale tse hlwekileng ka diontong ebe e kgaolwa ka di-wafer, tseo kajeno hangata di leng bophara ba 300 mm. Bokaholimo ba wafer bo a oxidized ho etsa lera la silica. E nngwe ya di-wafer e tlatsitswe ka diathomo tsa haedrojene ho fihlela botebong bo itseng. Di-wafer tse pedi di kopanngwa ka vacuum mme dikarolo tsa tsona tsa oxide di a hokahana. Kopano e a robeha moleng wa ho kenngwa ha hydrogen ion. Lera la silicon lepatsong le a bentshwa, qetellong le siya lera le lesesane la kristale Si hodima wafer ya "sebetsa" ya silicon e sa senyehang hodima lera la silica. Di-waveguide di etswa ka lera lena le lesesane la kristale. Le hoja di-wafer tsena tse thehilweng ho silicon-based insulator (SOI) di etsa hore di-waveguide tsa silicon photonics tse lahlehelwang ke theko e tlase di kgonehe, ha e le hantle di sebediswa haholo dipotolohong tsa CMOS tse nang le matla a tlase ka lebaka la phallo e tlase ya ho dutla eo di fanang ka yona.

Ho na le mefuta e mengata e ka bang teng ea li-waveguide tsa optical tse thehiloeng ho silicon, joalo ka ha ho bontšitsoe ho Setšoantšo sa 2. Li tloha ho li-waveguide tsa silica tse nang le microscale germanium-doped ho ea ho li-waveguide tsa Silicon Wire tse nang le nanoscale. Ka ho kopanya germanium, hoa khoneha ho etsali-photodetectorsle ho monya motlakaseli-modulator, mohlomong esita le li-amplifier tsa optical. Ka ho sebelisa silicon ho fokotsa ho ruruha, e lengmodulator ea opticale ka etsoa. ​​Botlaaseng ho tloha ka letsohong le letšehali ho ea ho le letona ke: tataiso ea maqhubu a terata ea silicon, tataiso ea maqhubu a silicon nitride, tataiso ea maqhubu a silicon oxynitride, tataiso ea maqhubu a thick silicon ridge, tataiso ea maqhubu a thick silicon nitride le tataiso ea maqhubu a silicon e entsoeng ka doped. Holimo, ho tloha ka letsohong le letšehali ho ea ho le letona, ho na le li-modulator tsa ho fokotseha, li-photodetector tsa germanium, le germanium.li-amplifier tsa optical.

Setšoantšo sa 2: Karolo e tšekaletseng ea letoto la tataiso ea maqhubu a optical e thehiloeng ho silicon, e bontšang tahlehelo e tloaelehileng ea ho ata le li-index tsa refractive.