Izakhi ze-Silicon Photonics

Ama-Silicon Photonicsizingxenye ezingenazifiso

Kunezakhi ezimbalwa ezibalulekile ezingenamininingwane eSilicon Photonics. Enye yalezi i-coupler ekhipha indawo evulekile, njengoba kukhonjisiwe kuMfanekiso 1A. Siqukethe i-grating eqinile ku-waveguide yayo isikhathi esilingana ne-wavelength yegagasi elikhanyayo ku-waveguide. Lokhu kuvumela ukukhanya ukuthi kukhishwe noma kutholwe nge-perpendicular ebusweni, okwenza kube kuhle ngezilinganiso zezinga elithile kanye / noma ukuhambisana nefayibha. Ama-Coupler asalayo ahlukile kuma-Silicon Photonics ngoba adinga umehluko omkhulu. Isibonelo, uma uzama ukwenza i-coupler ye-grating endaweni evamile ye-waveguide, ukukhanya kuvuza ngqo engxenyeni engezansi esikhundleni sokukhutshwa ngokuqondile ngoba i-waveGuide ye-grating inenkomba ephansi evamile enesilinganiso se-substrate. Ukuyenza isebenze ku-INP, izinto ezibonakalayo kufanele zimbiwe ngaphansi kwe-grating ukuyimisa, njengoba kukhonjisiwe kuMfanekiso 1B.

Umdwebo 1: I-Surface-ikhipha izithandani ezinamakha ane-munye eSilicon (a) ne-INP (B). Ku (a), okuluhlaza okwesibhakabhaka nokukhanya okuluhlaza okwesibhakabhaka kufanekisela i-silicon ne-silica, ngokulandelana. Ku (b), i-Red and Orange imele i-INAASP ne-INP, ngokulandelana. Izibalo (c) no (d) ziskena izithombe ze-elektroni microscope (SEM) ze-inp i-inp evaliwe ye-cantilever gratiler coupler.

Enye ingxenye esemqoka iyisiguquli sosayizi webala (SSC) phakathi kweI-WaveGuide ye-OpticalFuthi i-fiber, eguqula imodi ecishe ibe ngu-0,5 × 1 μm2 kwi-Silicon WaveGuguide kumodi ecishe ibe yi-10 × 10 μm2 ku-fiber. Indlela ejwayelekile ukusebenzisa isakhiwo esibizwa ngokuthi i-wapser yaphakathi, lapho i-waveguide incipha kancane kancane ku-tip encane, ephumela ekunwetsheni okukhulu kwe-phathelene nokubonapatch mode. Le modi ingabanjwa yi-waveguide yengilazi ebekiwe, njengoba kukhonjisiwe kuMfanekiso 2. Nge-SSC enjalo, ukulahleka kokuhlangana okungaphansi kwe-1.5DB kutholakala kalula.

Umdwebo 2: Iphethini yokuguqula usayizi we-silicon wire. Indwangu ye-silicon yakha isakhiwo se-anversical ephakathi ngaphakathi kwe-waveguide yengilazi ebisiwe. I-silicon substrate ifakwe ngaphansi kokumiswa kwe-waveguide yengilazi emisiwe.

Ingxenye esemqoka engenasisekelo yi-polarization beam splitter. Ezinye izibonelo ze-polarization splitters zikhonjiswa kuMdwebo 3. Okokuqala yi-Mach-Zenpremometer (MZI), lapho ingalo ngayinye ine-brovef ehlukile. Okwesibili yi-coupler elula eqondile. I-Shape Bretrofmence ye-waveguide ye-siilggue ye-silicon ephakeme kakhulu, ngakho-ke ukukhanya kwe-polarized (TM) okusobala kungahlanganiswa ngokugcwele, ngenkathi kukhanya kagesi (i-TETROPEL (TE) Khanyisa Okwesithathu kungumkhulu we-grating, lapho i-fiber ibekwa khona engela ukuze ukukhanya okukhanyisiwe kuhlanganiswe endaweni eyodwa kanye nokukhanya kwe-tm polarized kuhambisana nokunye. Okwesine yi-coupler enezici ezimbili enezici ezimbili. Izinhlobo ze-Fibread amasimu awo kagesi ezinhlaka-perpendicular kuya ekuqondisweni kokusakazwa kwe-waveguide kuhambisana ne-waveguide ehambisanayo. I-Fibre ingathathwa futhi ihlanganiswe nama-waveguides amabili, noma i-perpendicular ebusweni bese ihambisana nama-wavegcuides amane. Inzuzo eyengeziwe yezithandana ezinama-grating ezimbili ukuthi zisebenza njenge-polarization roter, okusho ukuthi konke ukukhanya ku-chip kunomhlaba ofanayo, kepha ama-polarization amabili asetshenziswa ku-fiber.

Umdwebo 3: Ama-splitters amaningi e-polarization.