Yb amplifier with ASE (original) (raw)

Here, we simulate an amplifier based on an Yb-doped fiber. The numerical and graphical outputs are displayed with an html file.

Input Parameters

Fiber length: 2 m
Fiber type: Yb-germanosilicate
pump signal
Wavelength: 940 nm 1040 nm
Mode radius: 3.8 µm 4 µm
Input power: 500 mW 1 mW
Losses: 0 dB / m 0 dB / m

Numerical Outputs

pump signal forward ASE backward ASE
Output power: 9.31 mW 222 mW 1.59 mW 120 mW
Gain: -17.3 dB 23.5 dB

Diagrams

powers vs. position

Fig. 1: Here, we show how the optical powers at various wavelengths vary within the fiber.

ASE spectrum

Fig. 2: This shows the spectrum of forward and backward ASE with a logarithmic (dB) vertical scale.

variation of pump power

Fig. 3: The outputs are plotted as functions of the pump power.

variation of signal power

Fig. 4: The outputs are plotted as functions of the signal input power.