Volume 43, Number 2, July II 1998
|Page(s)||153 - 158|
|Section||Classical areas of phenomenology|
|Published online||01 September 2002|
Vectorial excess noise factor in common lasers
Laboratoire d'Electronique Quantique-Physique des Lasers,
UMR CNRS 6627, Université de Rennes I,
Campus de Beaulieu - F-35042 Rennes Cedex, France
Accepted: 22 May 1998
The fundamental linewidth of usual lasers containing linear phase and loss anisotropies is experimentally and theoretically investigated. It is proved that the eigenstates of such lasers are in general nonorthogonal, leading to the prediction of an important excess noise factor. The experiment evidences an enhancement of the Schawlow-Townes linewidth up to a factor of nearly one hundred, in good agreement with theory.
PACS: 42.55.Ah – General laser theory / 42.50.Lc – Quantum fluctuations, quantum noise, and quantum jumps / 42.60.Lh – Efficiency, stability, gain, and other operational parameters
© EDP Sciences, 1998
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