Past decade the utilization of lanthanide groups including Terbium (Tb3+), Erbium (Er3+), Neodymium (Nd3+) and Europium (Eu3+) in lasers and amplifiers has grown dynamically. This is a result of effective pumping system of lanthanide ions’ energy transfer processes. The evidence shows that the lanthanide ions dissolve easily in organic hosts such as polymer by encapsulating it with organic ligand.