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Anomalous linewidth behavior in short-cavity single-frequency fiber lasers

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4 Author(s)
N. Y. Voo ; Optoelectron. Res. Centre, Univ. of Southampton, UK ; P. Horak ; M. Ibsen ; W. H. Loh

An experimental investigation of the anomalous linewidth behavior in a distributed feedback fiber laser is presented. It is found that not only does the linewidth deviate from the Schawlow-Townes linewidth formula by increasing with pump and laser power, but it also varies significantly with the pumping configuration. These observations have potentially important implications for the design and operation of such fiber lasers.

Published in:

IEEE Photonics Technology Letters  (Volume:17 ,  Issue: 3 )