Measuring spatiotemporal intensity-and-phase complexity of multimode fiber output pulses

Zhe Guang; Michelle Rhodes; Rick Trebino

doi:10.1117/12.2211912

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9 March 2016 Measuring spatiotemporal intensity-and-phase complexity of multimode fiber output pulses

Zhe Guang; Michelle Rhodes; Rick Trebino

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Proceedings Volume 9740, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVI; 97400G (2016) https://doi.org/10.1117/12.2211912
Event: SPIE LASE, 2016, San Francisco, California, United States

Abstract

We demonstrate ultrashort pulse spatiotemporal field measurement for multimode optical fibers, using a singleframe characterization technique, called Spatially and Temporally Resolved Intensity and Phase Evaluation Device: Full Information from a Single Hologram (STRIPED FISH). We measure STRIPED FISH traces and retrieve the pulse field E(x,y,t) or equivalently E(x,y,ω), to generate movies revealing the field structure induced by propagating modes, due to their differences in field spatial distribution, modal propagation velocity and modal dispersion inside the fiber. We launch femtosecond pulses near 800nm from Ti: Sapphire laser to investigate linearly polarized modes LP₀₁, LP₁₁, LP₀₂ and LP₂₁ in multimode fibers.

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Zhe Guang, Michelle Rhodes, and Rick Trebino "Measuring spatiotemporal intensity-and-phase complexity of multimode fiber output pulses", Proc. SPIE 9740, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVI, 97400G (9 March 2016); https://doi.org/10.1117/12.2211912

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