Networking Reference
In-Depth Information
I 0
I 1 (FFCI)
P 1
P 0
Amplitude-sequeezed
downstream
Modulated up-
stream optical
signal
Downstream
optical signal
Input power
Saturation region
Saturation point
OLT output pattern: ER
8.2dB
RSOA output pattern (saturation only)
FFCI into two-section RSOA
Control
current
Upstream
modulation
Input
Output
Section 1
Section 2
SSC
RSOA output pattern (FFC)
Figure 2.49 Feed-forward current injection to RSOA in WE-PON. (Courtesy of ETRI and
Korea Telecom.)
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