Improved laser diode for high power and high temperature applications

D. Schröder; M. Schröder; E. Werner; J. Meusel; D. Lorenzen; P. Hennig; R. Hülsewede; J. Sebastian

doi:10.1117/12.809997

23 February 2009 Improved laser diode for high power and high temperature applications

D. Schröder, M. Schröder, E. Werner, J. Meusel, D. Lorenzen, P. Hennig, R. Hülsewede, J. Sebastian

Proceedings Volume 7198, High-Power Diode Laser Technology and Applications VII; 719809 (2009) https://doi.org/10.1117/12.809997
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

The industry of laser marking, direct application and solid state laser pumping requires highly reliable and highly efficient laser diodes. In general, all applications demand improved brightness and temperature stability, and this by decreasing costs per watt. Instead of increasing the cavity length, we demonstrate in this paper an increase of power with standard cavity length with a clear focus of cost reduction and high efficiency. Improvements in the semiconductor material and packaging enable higher power and higher operation temperature. This technology raised the efficiency by 6 % of 808 nm bar with 50 % filling factor and a resonator length of 1.5 mm. Now, passively cooled diode lasers have reached nearly the performance of actively cooled ones. With this new design new fiber coupling modules with high brightness and high operation temperature for air cooled systems can be achieved.

Citation Download Citation

D. Schröder, M. Schröder, E. Werner, J. Meusel, D. Lorenzen, P. Hennig, R. Hülsewede, and J. Sebastian "Improved laser diode for high power and high temperature applications", Proc. SPIE 7198, High-Power Diode Laser Technology and Applications VII, 719809 (23 February 2009); https://doi.org/10.1117/12.809997

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