Na'urar siliki ce ta photodiode module tare da raka'a iri ɗaya guda huɗu, tare da ginanniyar da'irar preamplifier, wanda zai iya haɓaka siginar mai rauni a halin yanzu kuma ya canza shi zuwa fitowar siginar wutar lantarki, yana fahimtar tsarin jujjuyawar "Optic-electrical-signal amplification".