Statistical properties of partially coherent CW fiber lasers

ArticleinOptics Letters 35(19):3288-90 · October 2010with6 Reads
Impact Factor: 3.29 · DOI: 10.1364/OL.35.003288 · Source: PubMed

    Abstract

    We perform a detailed quantitative numerical analysis of a partially coherent quasi-cw fiber laser on the example of a high-Q normal dispersion cavity Raman fiber laser. The key role of precise spectral performances of fiber Bragg gratings forming the laser cavity is clarified. It is shown that cross-phase modulation between the pump and Stokes waves does not affect the generation. Amplitudes of different longitudinal modes strongly fluctuate, obeying the Gaussian distribution. As the intensity statistics is noticeably nonexponential, longitudinal modes should be correlated.