SOA Amplifiers

Improved Gain in High-Concentration Er3+/Yb3+ Waveguide Amplifiers

Optical System - Figure 7 Signal gain versus Ytterbium concentration (Pp=200mW, Ps=1μ W, L=3cm, NEr=2.0 1026 ions m3)

This lesson will prove that we can achieve high gain with a short device length if we use a high-concentration Er3+/Yb3+ codoped glass waveguide amplifier. In this example, we simulate a codoped waveguide amplifier and show that the efficient Yb3+ to Er3+ energy transfer is a useful mechanism to reduce performance degradation due to Er3+…