Abstract

A novel beam-shaping technique for a high-power laser diode array is put forth in this paper. We utilize a pair of integrated rhomboid prism arrays to balance the beam parameter products of an asymmetrical beam from a laser diode array in orthogonal directions by deflecting the appointed parts of the beam on the longer side and by recombining them on the shorter side. When combined with divergence transformation by means of collimating elements, the beam-shaping system can produce a rather symmetric beam regarding beam parameter products in orthogonal directions with optimized beam waists and divergences, compared with the original one. A beam-shaping and fiber-coupling system is designed and demonstrated for a commercial high-power laser diode array. In the experiment, an emission beam from the diode is tailored and reconfigured into three subbeams and coupled into a fiber with parameters of 400 µm/0.22 NA. The total optical-to-optical transmission efficiency exceeds 70%, which confirms the effectiveness of the proposed technique in laser diode array beam-shaping.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.