COLLIMATING OPTICAL SYSTEM FOR SEMICONDUCTOR LASER

摘要

A collimating optical system for a semiconductor laser contains a series-mounted and optically conjugated laser radiation source, a lens, two direct optical prisms, the refractive angles of which are the same and are selected in the range from 20 to 42 degrees, and their edges are oriented perpendicular to the plane of the semiconductor transition. Behind the prisms, a telescopic optical system with an increase in CT equal to where a is the size of the emitting region of the semiconductor laser in a plane parallel to the plane of the semiconductor junction, φ is the required radiation divergence, F is the focal length of the lens, α is the angle of incidence of the laser beams on the prisms , β are the refracting angles of the prisms. The technical result is the optimization of dimensions with a significant reduction in the divergence of laser radiation. 1 ill.