The computer analysis and optimization of structural parameters of a power combiner and a blue laser diode have been carried out to obtain high power. Initially, the structural and material parameters of a single blue laser diode have been optimized at the emission wavelength of 507 nm. For this analysis and optimization, the electrical and optical equations have been solved in the self-consistent manner. The power obtained from two such blue laser diodes has been coupled to a power combiner to obtain high power. The beam propagation method has been applied for the propagation of modes through the combiner and the computation of the output power. It is pragmatic from the present analysis that output power from the combiner is 33.95 mW, which is about double that of the power obtained from a single blue laser diode of 17 mW by proper optimization of the structural parameters of the combiner for minimum losses.