Isirg
Apparence
![](http://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Fibreoptic.jpg/250px-Fibreoptic.jpg)
Isireg (Asget: isirgen) d iɣrisen usdiden (irqaqen), Dɣa iɣrisen twaxdmen-d s usdukkel n tarebbut (tarbaɛt) n waṭas n isirgen,
wekdu n isirgen tla (tesɛa) gar 11 ar 50 n imikṛumitren ma d tiddi-nsen seg 2.2 cm ar waṭas n imilen Isirg yettusexdem deg waṭasn tnugriwin yemgaraden am tferka d iɣrisen