Olson Technology OTEB-CO-B EDFA WITHOUT SNMP - Manual (Page 6)

EDFA BLOCK DIAGRAM
Typical Catv CNR Degradation
EDFA Optical Input (dBm)
0
0.0
0.5
1.0
2.0
3.0
1.5
2.5
3.5
1 2 3 4 5 6 7 8 9 10
Input
Power
Detector
Output
Power
Detector
Optical
Isolator
Optical
Isolator
Erbium-Doped Fiber
Micro-Processor
CPU Control Unit
Pump Laser
980nm
Pump Laser
980/1480nm
PD
Input
PD
Output
Average Power Control Thermoelectric Cooler
Front Panel
Status Monitor
RS-232
Status Alarm
Display
LCD/VFD
Optical
Splitter Optical
Splitter
WDM
1550/980
Thermoelectric Cooler
WDM
1550/980-1490