Labada qaybood ee fiber-ka ah iyo laba-dual fiber indhaha ayaa gudbin kara oo heli kara.Maadaama labada isgaarsiineed ay tahay inay awood u yeeshaan inay gudbiyaan oo ay helaan.Farqiga u dhexeeya ayaa ah in hal module fiber optical uu leeyahay hal deked oo keliya.Tiknooloojiyada kala-duwan ee kala-duwanaanshaha dhererka dhererka (WDM) waxaa loo isticmaalaa in lagu daro helitaanka iyo gudbinta hirarka kala duwan ee hal fiber, shaandheynta shaandhada ku jirta moduleka indhaha, isla mar ahaantaana dhammaystira gudbinta calaamadaha indhaha ee 1310nm iyo soo dhaweynta 1550nm calaamadaha indhaha, ama liddi ku ah .Sidaa darteed, moduleka waa in loo adeegsadaa laba-labo (ma aha wax aan macquul ahayn in la kala saaro fiilada leh dhererka dhererka transceiver isku mid ah).
Sidaa darteed, hal module fiber optical module wuxuu leeyahay aaladda WDM, qiimuhuna wuu ka sarreeyaa kan moduleka fiber-ka laba-geesoodka ah.Maaddaama ay labada qaybood ee fiber optical-ka ah ay helaan oo ay helaan dekedo kala duwan oo fiber indhaha ah, iskuma farageliyaan midba midka kale, sidaas darteed uma baahna WDM, markaa hirarka dhererka ayaa isku mid noqon kara.qiimuhu wuu ka jaban yahay kan kaliya ee fiber-ka ah, laakiin waxa uu u baahan yahay khayraad badan.
Labada qaybood ee fiber optic module iyo hal fiber optical modules dhab ahaantii waxay leeyihiin saameyn isku mid ah, farqiga kaliya ee u dhexeeya ayaa ah in macaamiishu ay dooran karaan hal fiber ama fiber double iyadoo loo eegayo baahidooda.
Module fiber optical modules waa qaali, laakiin waxay badbaadin kartaa kheyraadka fiber-ka, taas oo ah doorasho wanaagsan oo loogu talagalay isticmaaleyaasha aan ku filneyn kheyraadka fiber-ka.
Module-ka laba-geesoodka fiber-ka ah waa mid raqiis ah, laakiin wuxuu u baahan yahay inuu isticmaalo hal fiber oo kale.Haddii kheyraadka fiber-ku ku filan yahay, waxaad dooran kartaa moduleka fiber optic-ga ee laba-geesoodka ah.