Scientific article
Open access

Laser noise reduction in air

Published inApplied physics letters, vol. 88, no. 25, 251112
Publication date2006

Fluctuations of the white-light supercontinuum produced by ultrashort laser pulses in self-guided filaments (spatiotemporal solitons) in air are investigated. We demonstrate that correlations exist within the white-light supercontinuum, and that they can be used to significantly reduce the laser intensity noise by filtering the spectrum. More precisely, the fundamental wavelength is anticorrelated with the wings of the continuum, while conjugated wavelength pairs on both sides of the continuum are strongly correlated. Spectral filtering of the continuum reduces the laser intensity noise by 1.2dB, showing that fluctuations are rejected to the edges of the spectrum.

  • Photons
  • Noise propagation
  • Filamentation
  • Mirrors
Citation (ISO format)
BEJOT, Pierre Olivier et al. Laser noise reduction in air. In: Applied physics letters, 2006, vol. 88, n° 25, p. 251112. doi: 10.1063/1.2216402
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Article (Published version)
ISSN of the journal0003-6951

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