1. Figure (A):PowerValueswithone EDFA before OLTwithaSpan of 15 Km’s.
Head End
(47MHz –860 MHz ) RF out
Optical
Transmitter
1550nm
Optical Out 0 dBm
EDFA 1(Eribium
Doped Fiber
Amplification)
+
2
0
d
B
m
OLT 16 PON with
Transmit Power
+15 dBm
=15 dB + 16.5dB/16=16dBmSplitter
(1:64)
-21dBm
-5dBm
ONT Client
(-7.5dBm)
Total PoweratONT = -5.5dB +
(0.21*0.8+.02*8+0.5*2)dB= -7.5dBm.
15 Km SpanwithLoss
3.5dBm