Kugereranya sisitemu yububiko bwibikoresho bya fotonike

Kugereranya sisitemu yububiko bwibikoresho bya fotonike
Igishushanyo 1 kirerekana igereranya rya sisitemu ebyiri yibikoresho, indium Fosifore (InP) na silikoni (Si). Ntibisanzwe indium ituma InP ibikoresho bihenze kuruta Si. Kuberako imiyoboro ishingiye kuri silikoni ikubiyemo gukura gukabije kwa epitaxial, umusaruro wumuzunguruko ushingiye kuri silikoni mubusanzwe uruta uw'umuzunguruko wa InP. Muri sisitemu ishingiye kuri silicon, germanium (Ge), ubusanzwe ikoreshwa gusaPhotodetector(icyuma kimurika), bisaba gukura epitaxial, mugihe muri sisitemu ya InP, ndetse na pasiporo ya pasiporo igomba gutegurwa no gukura kwa epitaxial. Imikurire ya Epitaxial ikunda kugira ubusembwa buri hejuru kuruta gukura kwa kristu imwe, nko kuva muri kristu. InP waveguide ifite itandukaniro ryinshi ryerekana itandukaniro gusa muri transvers, mugihe silikoni ishingiye kuri silicon ifite indangagaciro ndende yo gutandukanya ibice byombi kandi birebire, ibyo bigatuma ibikoresho bishingiye kuri silikoni bigera kuri radiyo ntoya igoramye hamwe nubundi buryo bworoshye. InGaAsP ifite icyuho cya bande itaziguye, mugihe Si na Ge badafite. Nkigisubizo, InP sisitemu yibikoresho irarenze muburyo bwa laser. Okiside yimbere ya sisitemu ya InP ntabwo ihagaze neza kandi ikomeye nka okiside yimbere ya Si, dioxyde de silicon (SiO2). Silicon ni ibikoresho bikomeye kuruta InP, yemerera gukoresha ubunini bunini bwa wafer, ni ukuvuga kuva kuri mm 300 (bidatinze kuzamurwa kugera kuri mm 450) ugereranije na mm 75 muri InP. InPabayoboramubisanzwe biterwa na kwant-ifunze Stark ingaruka, ikaba itumva ubushyuhe bitewe ningendo ya bande iterwa nubushyuhe. Ibinyuranye, ubushyuhe bushingiye kuri moderi ya silicon ni nto cyane.

Tekinoroji ya Silicon Photonics isanzwe ifatwa nkibikwiye gusa kubiciro bidahenze, bigufi, ibicuruzwa byinshi (ibice birenga miliyoni 1 kumwaka). Ibi ni ukubera ko byemewe cyane ko ubushobozi bwa wafer busabwa gukwirakwiza mask nigiciro cyiterambere, kandi ibyotekinoroji ya siliconifite imikorere igaragara mubikorwa byumujyi-umujyi uturere hamwe nigihe kirekire-cyibicuruzwa. Mubyukuri, ariko, ibinyuranye nukuri. Mubiciro bidahenze, bigufi, bitanga umusaruro mwinshi, vertical cavity surface-yohereza laser (VCSEL) nalaser-moderi (DML laser). Ibinyuranye, muri metro, intera ndende ikoreshwa, bitewe nuburyo bwo guhuza tekinoroji ya silicon Photonics hamwe no gutunganya ibimenyetso bya digitale (DSP) hamwe (bikunze kuba mubushyuhe bwo hejuru), nibyiza gutandukanya lazeri. Byongeye kandi, tekinoroji ya coherent yo gutahura irashobora kuzuza ibitagenda neza byikoranabuhanga rya fotonike ya silicon kumurongo munini, nkikibazo cyuko umuyaga wijimye ari muto cyane ugereranije na fotokopi ya oscillator yaho. Muri icyo gihe, ni bibi kandi gutekereza ko hakenewe imbaraga nyinshi za wafer kugirango hishyurwe mask nigiciro cyiterambere, kubera ko tekinoroji ya silicon Photonics ikoresha ubunini bwa node nini cyane kuruta ibyuma byuzuza ibyuma bya okiside (CMOS), masike asabwa rero nibikorwa byo gukora birahendutse.