Abstract
Light beams shaped by programmable megapixel spatial light modulators
(SLMs) are key to broadening the applications of photonics. In this
paper, we consider the application of a SLM for the generation of
two mutually coherent white-light continuum optical sources by filamentation
of infrared femtosecond pulses in bulk. We demonstrate that the inhomogeneity
of the input beam and the longitudinal separation of the generated
filaments are crucial parameters that break down the mutual coherence
across neighboring filaments. We show that local control over the
optical phase enables us to gain fine control over filament interference
effects.
© 2015 IEEE
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