Abstract
We study, theoretically and experimentally, the evolution of optical waves with randomly-fluctuating phases in a spatially chirped nonlinear directional coupler. As the system crosses its linear resonance, we observe collective self-phase-locking (autoresonance) of all mutuallyincoherent waves, each with its own pump, and simultaneous amplification until the pumps are exhausted. We show that the autoresonant transition in this system exhibits a sharp threshold, common to all mutually-incoherent waves comprising the light beam.
Original language | English |
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Pages (from-to) | 17709-17718 |
Number of pages | 10 |
Journal | Optics Express |
Volume | 18 |
Issue number | 17 |
DOIs | |
State | Published - 16 Aug 2010 |