Generation of UV and blue light by using off-axis pumping for fluorescence lifetime spectroscopy

S. Taccheo; C. D'Andrea; A. Bassi; R. Cubeddu; K. Schuster; J. Kobelke; K. Morl; S. Soria-Huguet; G. Nunzio Conti; G. C. Righini

doi:10.1117/12.872945

11 February 2011 Generation of UV and blue light by using off-axis pumping for fluorescence lifetime spectroscopy

S. Taccheo, C. D'Andrea, A. Bassi, R. Cubeddu, K. Schuster, J. Kobelke, K. Morl, S. Soria-Huguet, G. Nunzio Conti, G. C. Righini

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Proceedings Volume 7925, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI; 792507 (2011) https://doi.org/10.1117/12.872945
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

We report on generation of blue light exploiting high-order mode propagation in a microstructured fiber pumped by a Ti:Sapphire close to the zero-dispersion wavelength of the first high-order mode. An new interesting regime was observed with axial offset pump. With 230 mW of incident pump power we generated over 3 mW in the 450-510 nm window achieving 50 μW/nm power density. In a final round of measurements we were able to show generation of a peak at 350 nm. This complex regime has still to be fully investigated but we believe an optimized fiber design will allow to efficiently extend the operation of Ti:Sapphire laser to UV/blue wavelength region.

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S. Taccheo, C. D'Andrea, A. Bassi, R. Cubeddu, K. Schuster, J. Kobelke, K. Morl, S. Soria-Huguet, G. Nunzio Conti, and G. C. Righini "Generation of UV and blue light by using off-axis pumping for fluorescence lifetime spectroscopy", Proc. SPIE 7925, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI, 792507 (11 February 2011); https://doi.org/10.1117/12.872945

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