Cov tsis ntxig ntxig rau ntawm qhov sib cais tau hais txog cov dB ntawm txhua qhov tso tawm piv rau cov tswv yim optical poob. Nws qhov kev qhia txog lej yog: Ai=-10lg Pouti / Pin, qhov twg Ai hais txog qhov tsis nkag ntawm qhov chaw nres nkoj i-th; Pouti yog Lub zog hluav taws xob ntawm lub i-th tso zis chaw nres nkoj; Tus pin yog qhov khoos phis tawm ntawm lub hwj chim kawg.
Kev poob ntxiv txhais tau tias yog DB tus naj npawb ntawm tag nrho cov hwj huam kho qhov muag ntawm txhua qhov chaw nres nkoj piv rau qhov poob ntawm cov tswv yim optical zog. Nws yog tsim nyog teev tias rau kev ua cov pa roj carbon fiber, qhov poob ntxiv yog qhov taw qhia ntawm qhov zoo ntawm cov txheej txheem kev tsim khoom, thiab qhia tau qhov tsis zoo ntawm cov khoom lag luam txheej txheem. Qhov me me poob, qhov zoo dua, thiab nws yog qhov ntsuas qhov ntsuas ntawm qhov zoo ntawm kev tsim khoom. Tso tsis tau tsuas yog sawv cev rau lub zog tawm ntawm txhua qhov chaw nres nkoj tawm, tsis tsuas yog muaj qhov poob qhov tsis txaus, tab sis tseem xam qhov cuam tshuam ntawm qhov sib cais feem. Yog li no, qhov sib txawv hauv cov ntxig ploj ntawm cov kab hluav taws xob sib txawv tsis muaj kev cuam tshuam cov khoom lag luam zoo. Rau 1 * N ib hom-hom kho qhov muag splitter, qhov poob ntxiv yog pom nyob hauv qab no:
Tus naj npawb ntawm cov ceg 2 3 4 5 6 7 8 9 10 11 12 16
Kev poob ntxiv DB 0.2 0.3 0.4 0.45 0.5 0.55 0.6 0.7 0.8 0.9 1.0 1.2
