In the recent years we had an increasing demand for compact active devices at 1.5 µm for metro/local optical network applications. A promising solution is to fabricate array of waveguide devices on the same glass chip. In fact these devices are very promising in terms of cost, size and reliability. In particular active devices based on high-concentration Erbium doped glasses are very promising for making compact array of linear devices that are compatible with multifiber cable.To obtain high gain per unit length (pul) Ytterbium codoping and phosphate glass base demonstrated to offer superior performance: Ytterbium codoping offers waveguide design flexibility and enhances pump absorption efficiency while phosphate glass base optimizes the energy transfer process between Erbium and Ytterbium ions [1]. Active fiber with gain up to 5 dB/cm [2] and amplifier with high gain pul and high output power have been reported [3-5]. Among various technique to fabricate such devices ion-exchange is a simply, reliable and rugged option and it was successfully demonstrated both using Ag-Na [4, 7, 8] and K-Na [9] ion-exchange. Active structures [10-12] and in particular optical amplifiers [3, 4], lossless splitter [13] and singlefrequency lasers [7-9] have been demonstrated. However laser devices were limited by low output power or by a cavity design requiring bi-directional pumping.