Piv nrog rau kev sib faib qib ob-theem, kev faib khoom theem ib tsis txaus txog kev nqis peev, yooj yim ntawm kev teeb tsa, thiab kev yooj yim rau kev nthuav dav. Txawm hais tias thawj-theem splitter ODN txuas muaj qhov ua kom qis qis dua, qhov tam sim no lub zog siv hluav taws xob ntawm PON cov khoom siv qhov kev thov rau theem nrab spectroscopy tau ua tiav; yog li ntawd, ODN tam sim no feem ntau siv kev tsom xam theem nrab.
Txawm li cas los xij, nyob rau hauv cov kav xa dej sab hauv los tsim kom muaj cov zej zog sib koom ua ke, qhov chaw taw qhia qhov nruab nrab ntawm tus neeg teb xov tooj thiab tus tsim tawm network yog cov xaib fiber ntau. Yog tias cov xov tooj hluav taws xob fiber ntau hauv cov thawv fiber ntau splitter thiab tsev neeg siv hluav taws xob fiber ntau cable ntawm txhua tsev neeg tau fused ib-rau-ib, yog li ntawd, qhov no, qhov no, thawj qib spectroscopy yuav tsum siv.
