22 March 2011 Coherent laser combination using a self-Fourier cavity
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Proceedings Volume 7822, Laser Optics 2010; 782202 (2011) https://doi.org/10.1117/12.886180
Event: Laser Optics 2010, 2010, St. Petersburg, Russian Federation
A coherent fiber laser array in a Self-Fourier cavity is described. The Self-Fourier cavity has been shown to coherently combine an array of fiber lasers through its ideal supermode discrimination as a result of its passive coupling matrix of rank 1. Recently, a static model has been developed that extrapolates this technique to an array of very large number of fiber lasers by exploiting the gain-dependent phase shift and incorporating specific levels of individual feedback to each fiber amplifiers, transforming them into regenerative amplifiers. By engineering the resonator in the manner described here, this enables us to circumvent predicted scaling limits and offers the possibility to achieve a highly phased state for a large number of fiber lasers in such an array. Experimental results are presented, the model of operation is discussed, and scaling predictions are presented.
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Christopher J. Corcoran, Christopher J. Corcoran, Frederic Durville, Frederic Durville, } "Coherent laser combination using a self-Fourier cavity", Proc. SPIE 7822, Laser Optics 2010, 782202 (22 March 2011); doi: 10.1117/12.886180; https://doi.org/10.1117/12.886180

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