I-Fiberconcepts' Fiber Array Block Units isebenzisa i-quartz, i-pyrex noma i-tempax substrate kanye nobuchwepheshe bokwakha obukhethekile obufinyelela indawo yefayibha enembile nokwethembeka okuphezulu ukuze kuhlangatshezwane nezidingo ezahlukene.Ama-FABU akhiqizwa ngokubeka imicu endaweni enembayo yengilazi ye-v-groove nenye i-chip yengilazi eyisicaba phezulu ukuze kwakheke ukuthintana okungamaphuzu angu-3 ngezinto eziyingqayizivele kanye nokucubungula ubuchwepheshe.Lokhu kuvumela abaklami bokupakisha ukuthi bafanise i-coefficient yokunweba okushisayo kwe-FABU nedivayisi ye-pigtail.