3 June 2002 Phase-locking of mulitcore fiber laser due to Talbot self-reproduction
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The multicore fiber laser (MCFL), containing several single mode microcores on the circle inside the pump core, is a promising compact high brightness laser source. The problem is to synchronize the radiation of microcores having different propagation constant values at a given radiation frequency. We present a theory of phase-locking of MCFL with a mirror spaced at fraction of Talbot distance. The collective mode selection appears to occur due to spatial filtering at fractional Talbon distance in combination with radiation frequency selection from the spectral gain range. Good agreement is found between the theory and experiment.
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Dmitri V. Vysotsky, Dmitri V. Vysotsky, Anatoly P. Napartovich, Anatoly P. Napartovich, } "Phase-locking of mulitcore fiber laser due to Talbot self-reproduction", Proc. SPIE 4706, Saratov Fall Meeting 2001: Laser Physics and Photonics, Spectroscopy, and Molecular Modeling II, (3 June 2002); doi: 10.1117/12.469605; https://doi.org/10.1117/12.469605

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