Far-Field Distribution of High Power Laser Beam

For fiber laser pumping, the main sources are fiber coupled laser diodes. The analysis of bipeak structure of optical intensity distribution in parallel and perpendicular direction to the junction is required to obtain high power and high brightness. Race tracing method and numerical integration algorithm are using to obtain the angular power distribution. This paper is dealing with designing of high brightness and high power laser diodes. The collimation properties of high power diode laser pillar through tube shaped viewpoint in broke down by beams following in the quick pivot and moderate hub, individually the module of high power semiconductor laser is investigated and checked. The principal mode exists toward the path opposite to the intersection plane, for the presence of multimode high power yield, the emanating zone is reached out to a stripe of 200∼300¬m toward the path parallel to the intersection plane which is in light of dynamic layer of a micron that is altogether smaller than the wavelength. Under the direction of this paper, a yield of 101.68w was acquired from 105m/0.15NA fiber in 976nm module with a coupling productivity of 85% and a brilliance of 16.63 MW•cm-2•str-1.