Abstract
A glass matrix consist of neodymium doped borate glass with chemical composition (58-x) B2O3-xNa(2)O- 40ZnO- 2Nd(2)O(3) x = 0, 5, 10, 15, 20 and 25 mol%. This type of glass used for glass laser medium. The glass has fabricated and annealed by the conventional casting method for glass fabrication. The variation between the borate oxide and sodium oxide causes a change of the oscillator strength, which gives us a good optimization for choosing the best chemical composition that gives maximum emission oscillator strength. Spectroscopic analyses based on Judd-Ofelt theory were performed, beginning with emission spectrum, oscillator strength and the intensity parameters ohm(2), ohm(4) and ohm(6) have been evaluated.