Low ruwa ganiya ba dispersive matsuwa guda-yanayin fiber dace da watsa tsarin na cikakken band 1280nm ~ 1625nm, wanda ba kawai kula da low watsawa na gargajiya band 1310nm, amma kuma yana da low asara a 1383nm, yin E band (1360nm ~ 1460nm) cikakken amfani.An inganta hasara da watsawa na duka band daga 1260nm zuwa 1625nm, kuma an rage asarar lanƙwasa na 1625nm, wanda ke ba da albarkatun bandwidth don cibiyar sadarwar kashin baya, MAN da hanyar sadarwa.