Kugereranya sisitemu z'ibikoresho bya fotonike bihujwe

Kugereranya sisitemu z'ibikoresho bya fotonike bihujwe
Ishusho ya 1 igaragaza igereranya ry’uburyo bubiri bw’ibikoresho, indium Fosforu (InP) na silikoni (Si). Kuba indium idakunze kuboneka bituma InP iba ​​ibikoresho bihenze kurusha Si. Kubera ko insinga zishingiye kuri silikoni zikura gake mu mikurire ya epitaxial, umusaruro w’insinga zishingiye kuri silikoni ubusanzwe uba munini kuruta uw’insinga zishingiye kuri silikoni. Mu nsinga zishingiye kuri silikoni, germanium (Ge), ikunze gukoreshwa gusa muriImashini ipima foto(ibikoresho bipima urumuri), bisaba gukura kwa epitaxial, mu gihe muri sisitemu za InP, ndetse n'amakuru y'ingufu adakora agomba gutegurwa hakoreshejwe gukura kwa epitaxial. Gukura kwa epitaxial kukunze kugira ubucucike bwinshi bw'ingufu kuruta gukura kwa kristu imwe, nko kuva kuri ingot ya kristu. Amakuru y'ingufu za InP afite itandukaniro rikomeye ry'ingufu za refractive index gusa mu buryo bunyuranyije, mu gihe amakuru y'ingufu za silicon afite itandukaniro rikomeye ry'ingufu za refractive index haba mu buryo bunyuranyije n'ubugari, ibyo bigatuma ibikoresho bishingiye kuri silicon bigera ku mirasire mito yo kugonga n'izindi nyubako nto. InGaAsP ifite icyuho cya band direct, mu gihe Si na Ge ntabyo bifite. Kubera iyo mpamvu, sisitemu z'ibikoresho bya InP ni nziza mu bijyanye n'imikorere ya laser. Oxyde z'ibanze za sisitemu za InP ntizihamye kandi zirakomeye nka oxyde z'ibanze za Si, silicon dioxide (SiO2). Silicon ni ibikoresho bikomeye kurusha InP, byemerera ikoreshwa ry'ingano nini za wafer, ni ukuvuga kuva kuri mm 300 (vuba ahazazamurwa kugeza kuri mm 450) ugereranije na mm 75 muri InP. InPmodulatorsUbusanzwe biterwa n’ingaruka za Stark zishingiye kuri quantum, ziterwa n’ubushyuhe bitewe n’ingendo z’umugozi ziterwa n’ubushyuhe. Mu buryo bunyuranye, uburyo modulators zishingiye kuri silicon zikoresha ubushyuhe ni nto cyane.

Ikoranabuhanga rya silicon photonics muri rusange rifatwa nk'iryujuje ibisabwa gusa ku bicuruzwa bihendutse, bigufi kandi bifite ingano nini (ibice birenga miliyoni 1 ku mwaka). Ibi biterwa nuko abantu benshi bemera ko hakenewe ubushobozi bwinshi bwo gukaraba udupfukamunwa kugira ngo hagabanywe ikiguzi cyo gukaraba no gutunganya udupfukamunwa, kandi koikoranabuhanga rya silicon photonicsifite ingaruka mbi zikomeye mu mikorere yayo mu mishinga ikoreshwa mu turere no mu turere. Ariko mu by'ukuri, ibinyuranye n'ibyo ni ukuri. Mu mishinga ihendutse, ikoreshwa mu ntera ngufi, itanga umusaruro mwinshi, ikoreshwa mu buryo bwa laser isohora ubuso buhagaze (VCSEL) nalaser ikoresha uburyo butaziguye (Lazeri ya DML): laser ikoresha uburyo butaziguye itera igitutu gikomeye mu guhangana, kandi intege nke z'ikoranabuhanga rya fotonike rishingiye kuri silicon ridashobora guhuza laser byoroshye byabaye ikibazo gikomeye. Mu buryo bunyuranye, muri metro, ikoreshwa ry'intera ndende, bitewe n'uko ikoranabuhanga rya fotonike rya silicon rikunda guhuza ikoranabuhanga rya fotonike na digital signal processing (DSP) hamwe (bikunze kuba mu bushyuhe bwinshi), ni byiza gutandukanya laser. Byongeye kandi, ikoranabuhanga ryo gutahura rishobora gukosora amakosa y'ikoranabuhanga rya fotonike rya silicon ku rugero runini, nko kuba ikibazo cy'uko umugezi wijimye ari muto cyane ugereranyije n'umugezi wa oscillator wo mu gace. Muri icyo gihe, ni bibi kandi gutekereza ko hakenewe ubushobozi bwinshi bwa wafer kugira ngo hishyurwe amafaranga yo gupfuka no guteza imbere, kuko ikoranabuhanga rya fotonike rya silicon rikoresha ingano nini cyane ugereranyije na semiconductors zigezweho cyane za oksidi y'icyuma (CMOS), bityo udupfuka dukenewe n'uburyo bwo gukora birahendutse cyane.