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Adler synchronization of spatial laser solitons pinned by defects

Paulau, Pavel V. P.V. and Mcintyre, Craig C. and Noblet, Y. Y. and Radwell, Neal Matthew and Firth, William J. W.J. and Colet, Pere P. and Ackemann, Thorsten T. and Oppo, Gian Luca G.L. (2012) Adler synchronization of spatial laser solitons pinned by defects. Physical Review Letters, 108. ISSN 0031-9007

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Spatial disorder due to growth fluctuations in broad-area semiconductor lasers induces pinning and frequency shifts of spatial laser solitons. We demonstrate frequency and phase-locking between two spatial solitons in VCSELs with frequency-selective feedback.