Semiconductor laser is used in processing many issues related to the scientific, military, medical, Semiconductor laser is used in processing many issues related to the scientific, military, medical, industrial and agricultural fields
due to its unique properties such as coherence and high strength where GaN-based components are the most efficient in this field.
Current technological developments mention to the strong connection of GaN with sustainable electronic and optoelectronic
devices which have high-efficiency. The threshold current density of Al0.1Ga0.9N/GaN triple quantum well laser structure was
investigated to determine best values of the parameters affecting the threshold current density that are well width, average
thickness of active region, cavity length, reflectivity of cavity mirrors and optical confinement factor. The optimum value of the
threshold current density is 2670 A/cm2 was obtained when the well width (w= 2.5 nm), reflectivity of cavity mirrors (R1=0.75,
R2=0.9), cavity length (L=2mm), average thickness of active region (d= 11.5 nm), and optical confinement factor ( Γ= 0.034) at
room temperature
ابتسام محمد تقي سلمان | Ebtisam M-T. Salman | 4086