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Phase Clusters Induced by Degeneracy in a Phase Locked Fiber Laser Array

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2 Author(s)
Ronen, E. ; Dept. of Electr. & Comput. Eng., Ben-Gurion Univ., Beer-Sheva, Israel ; Ishaaya, A.A.

We investigate phase-locking of seven fiber lasers coupled in a Talbot configuration. We show that phase clustering occurs in the array whereby the array separates into two different phase-locked clusters. Further, theoretical analysis and experimental measurements show that these clusters result from an incoherent superposition of the in-phase and out-of-phase supermodes of the array. By inserting selective loss in the resonator, we manage to demonstrate operation in a nearly single pure in-phase supermode.

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Quantum Electronics, IEEE Journal of  (Volume:47 ,  Issue: 12 )