Resonant excess quantum noise in lasers with mixed guiding

Open Access
Authors
  • Y. Lien
  • E. van der Togt
  • M.P. van Exter
  • J.P. Woerdman
Publication date 2003
Journal Optics Letters
Volume | Issue number 28 | 18
Pages (from-to) 1668-1670
Organisations
  • Faculty of Science (FNWI) - Institute of Physics (IoP) - Van der Waals-Zeeman Institute (WZI)
Abstract We show experimentally that the combination of soft-edged gain and index guiding can lead to resonant excess quantum noise. Resonances with excess noise factors close to 100 are observed in end-pumped Nd 3+ YVO 4 lasers for cavity lengths in which two modes experience similar gain. An associated increase in the relaxation oscillation damping rate demonstrates that the fluctuation enhancement is indeed caused by excess quantum noise and not by dynamic instabilities.
Document type Article
Language English
Published at https://doi.org/10.1364/OL.28.001668
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