The current work presented the photoluminescence (PL) properties of a new glass system, which are reported for the first time. Based on the attractive properties of borate glass, a mixture of boric acid (70�x mol %) modified with lithium (20 mol %) and so dium carbonate (10 mol %) was prepared. The current study illustrated the effect of dopant and codopant te chniques on the lithium sodium borate (LNB). Firstly, 0.1 mol % of copper ions doped with LNB was excited at 610 nm. The emission spectrum showed two prom� inent peaks in the violet region (403 and 440 nm). Then, we remarked the effect of adding different concen� tration of MgO on the optical properties of LNB. The results showed the great effect of magnesium oxide on the PL intensities (enhanced more than two times). Moreover, an obvious shifting has been defined toward the blue region (440 475 nm). The upconversion opti cal properties were observed in all emission spec� tra. This enhancement is contributed to the energy transfer from MgO ions to monovalent Cu + ion. It is well known that magnesium oxide alone generates weak emission intensity, but during this increment the MgO act as an activator (codoped) for Cu io ns. Finally, energy band gap, density, ion concentration, molar volume, Polaron radius and internuclear distance all were measured for the current samples. The current samples were subjected to XRD for amorphous confirmation and IR for glass characterization before and after dopants addition. Finally, some of significant physical and optical parameters were also calculated.