Tugas SKSO (APD)

 

Red Fiber Nebula

2. Suatu APD  dengan efisiensi 65% pada panjang gelombang 900 nm. jika daya optik (Po) adalah 0.50 μW menghasilkan arus photo multiplikasi (Im) sebesar 10 μA. berapa faktor multiplikasi (M) ?

Jawab :

Rapd = Ro M

Ro = (η * λ * g )/(h*c)

= (0.65 *(900*10^-9)*(1.6*10^-19))/((6.625*10^-34)*(3*10^8))

= 0.47

Ip = 0.47 * 0.5 * 10^-6

= 0.235 μA

M  = Im/Ip

= (10^-5 )/(0.235 * 10^-6)

= 42.553

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