Nws muaj singled los yog doubled plaub tib units ntawm Si PIN photodiode nrog pre-amplification Circuit Court uas ua rau tsis muaj zog tam sim no teeb liab yuav tsum amplified thiab hloov mus rau hauv voltage teeb liab kom ua tiav cov txheej txheem hloov dua siab tshiab ntawm photon-photoelectric-signal amplification.