Configurable multipulsing of a MOPA pulsed fiber laser with applications in materials processing

Paulo T. Guerreiro; João M. Sousa; Rosa Romero; Manuel Silva; André Duarte; José R. Salcedo

doi:10.1117/12.2026219

18 November 2013 Configurable multipulsing of a MOPA pulsed fiber laser with applications in materials processing

Paulo T. Guerreiro, João M. Sousa, Rosa Romero, Manuel Silva, André Duarte, José R. Salcedo

Proceedings Volume 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications; 87854O (2013) https://doi.org/10.1117/12.2026219
Event: 8th Ibero American Optics Meeting/11th Latin American Meeting on Optics, Lasers, and Applications, 2013, Porto, Portugal

Abstract

The generation of configurable multipulses by advanced MOPA fiber lasers is opening new possibilities in materials processing, showing improvements in efficiency and quality while benefiting from the advantages of competitively priced fiber lasers. We show examples of the configuration capability and control of multipulses of a 20W MOPA pulsed fiber laser at 1.06μm, having and M² of 1.3. The multipulses consist of user-defined bursts of short pulses, with burst durations ranging from 10ns up to 1000ns, frequencies up to tens of MHz within the burst, with individual pulses in the 10ns to 200ns range and with up to 12kW peak power. Multipulse repetition frequency is controlled externally from single shot up to few MHz, with the possibility of real-time switching between different multipulses.

Citation Download Citation

Paulo T. Guerreiro, João M. Sousa, Rosa Romero, Manuel Silva, André Duarte, and José R. Salcedo "Configurable multipulsing of a MOPA pulsed fiber laser with applications in materials processing", Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 87854O (18 November 2013); https://doi.org/10.1117/12.2026219

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