Improved efficiency and beam divergence in kW-class diode laser bars with edge-heaters
We present a novel approach to flattening the in-chip thermal profile that develops within multiple-emitter, 1-cm-wide bars by optimally manipulating heating at the edge-emitters. The best-designed bars yield >10% reduced divergence (95% power) and a 5%-point efficiency gain at 0.8 kW compared to reference bars.
Authors
- Pietro Della Casa (ORCID: https://orcid.org/0000-0001-8393-4498)
- Anisuzzaman Boni (ORCID: https://orcid.org/0000-0002-1658-6830)
- Stephan Strohmaier
- P. Crump (ORCID: https://orcid.org/0000-0001-6723-8863)
- A. Ginolas
- G. Tränkle (ORCID: https://orcid.org/0000-0002-8324-8591)
- Md. Jarez Miah (ORCID: https://orcid.org/0000-0002-9765-3088)
- Andrea Knigge (ORCID: https://orcid.org/0000-0002-0103-6238)
- Mohamed Elattar (ORCID: https://orcid.org/0000-0003-0822-0297)
- Dominik Martin
- S. Grützner
Institutions
- Bangladesh University of Engineering and Technology (BD)
- Ferdinand-Braun-Institut (DE)
- TRUMPF (Germany) (DE)
- MS-Schramberg (Germany) (DE)
Publication Details
- Published
- 2024-11-10
- DOI
- https://doi.org/10.1109/ipc60965.2024.10799904
- Citations
- 1
- Primary Topic
- Laser Design and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.21