Fs laser induced apodised Bragg waveguides in fused silica

Christian Voigtländer; Peter Zeil; Jens Thomas; Martin Ams; Robert J. Williams; Michael J. Withford; Andreas Tünnermann; Stefan Nolte

doi:10.1117/12.886306

11 February 2011 Fs laser induced apodised Bragg waveguides in fused silica

Christian Voigtländer, Peter Zeil, Jens Thomas, Martin Ams, Robert J. Williams, Michael J. Withford, Andreas Tünnermann, Stefan Nolte

Author Affiliations +

Proceedings Volume 7925, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI; 79250Y (2011) https://doi.org/10.1117/12.886306
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

We present apodised Bragg waveguides inscribed in fused silica using a high repetition rate fs laser system. By varying the modulation with a pulse picker, the mean refractive index over the grating length could be kept constant, while the grating strength is varied. Thus, Bragg waveguides with zero crossing Gaussian modulation profile could be demonstrated. The side-lobes were suppressed by about 10 dB compared to a uniform grating.

Citation Download Citation

Christian Voigtländer, Peter Zeil, Jens Thomas, Martin Ams, Robert J. Williams, Michael J. Withford, Andreas Tünnermann, and Stefan Nolte "Fs laser induced apodised Bragg waveguides in fused silica", Proc. SPIE 7925, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI, 79250Y (11 February 2011); https://doi.org/10.1117/12.886306

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