FIBER-COUPLED DIODE LASER MODULE AND METHOD OF ITS ASSEMBLING

摘要

A pigtailed diode laser module is configured with a case housing a plurality of multimode chips which are arranged in at least one row and output respective beams in one direction, Each output beam is collimated in upstream fast and downstream slow axes collimators which are spaced from one another in the one direction. The collimated output beams are incident on respective mirrors redirecting the incident output beams in another direction which is transverse to the one direction. Propagating further one above another, the output beams constitute a combined beam which diverges In the slow axis while propagating towards at least one lens which focuses the combined beam in the slow axis in the focal plane thereof. The output fiber is mounted to the case such that its core end is located coplanar with the smallest cross-section of the focused combined beam spaced downstream from the focal plane at a predetermined distance.