A mathematical model to describe the far-field of a high-power laser diode (LD) beam is presented. The laser beam propagation is studied by the vector Rayleigh–Sommerfeld far-field diffraction integral formula The far-field distribution of the LD beam is studied in detail; the light polarized parallel and perpendicular to the junction plane are all considered. This model is employed to predict the light intensity of high-power LDs. The computed intensity distributions are in a good agreement with the corresponding measurements. This model can be easily used to analyze the propagation properties of the high-power LD beam.
© 2013 Optical Society of America
Lasers and Laser Optics
Original Manuscript: December 14, 2012
Manuscript Accepted: January 30, 2013
Published: March 8, 2013
Qiang Xu, Jiajie Wang, Yiping Han, and Zhensen Wu, "Vectorial analytical description of the polarized light of a high-power laser diode," Appl. Opt. 52, 1711-1715 (2013)