Optical Amplification at 1525 nm in BaYF₅: 20% Yb³⁺, 2% Er³⁺ Nanocrystals Doped SU-8 Polymer Waveguide

Figure 6

Output near-field profile from a 1.1 cm long waveguide at 1525 nm. The input signal power is 0.09 mW.