Generation of spatiotemporal optical vortices with partial temporal coherence

Abstract

Recently, a spatiotemporal optical vortex (STOV) with a transverse orbital angular momentum (OAM) has been generated from coherent ultrafast pulses using mode-locked lasers. In contrast, we demonstrate theoretically and experimentally that a STOV can be generated from a light source with partial temporal coherence with fluctuating temporal phase. By eliminating the need of mode-locked laser sources, the partially coherent STOV will serve as a convenient and cost-effective transverse OAM source.

References in corpus (7)

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• Phenomenological model for spectral broadening of incoherent light in fibers via self-phase modulation and dispersion