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Er-Yb-Based Main-Oscillator Power Amplifier (MOPA)
Tool Used: OptSim
This example demonstrates a main-oscillator power amplifier using an EDFA and an Er-Yb co-doped fiber amplifier (EYCDFA).
The OptSim Figure below depicts the topology used:
The figure below depicts the MOPA output versus source wavelength for different pump-power values. As can be seen, outputs on the order of 100 W can be achieved for sufficiently high pump powers. The output power can be further increased by raising the pump power, though roll-over does eventually occur.
Next, we will plot the MOPA output power versus pump power at a source wavelength of 1550 nm. The figure below shows the steady increase of MOPA output power as we increase the pump power, with the onset of roll-over manifest at higher pump powers.
