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Data · collection · 2018

Dynamic mode-switchable optical vortex beams using acousto-optic mode converter

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We propose a dynamic scheme to realize mode-switchable generation of LP11a/b modes and ±1-order orbital angular momentum (OAM) modes simultaneously, which are induced by an acoustically-induced fiber grating driven by a radio frequency modulation.

Description

LP11a/b mode degeneration in a few-mode fiber is induced by the geometric irregularity of optical fibers. A dual-wavelength resonance of mode coupling from LP01 to LP11a/b modes is found based on the combined effects of optical and acoustic birefringence.

Within the configuration of CW intra-cavity laser output, we experimentally demonstrate a fast-switchable generation of LP11a/b modes and optical vortex beams with ±1-order OAM at a switching speed up to 4.3 kHz. This approach has potential applications in mode division multiplexing, particle manipulation, stimulated emission depletion microscopy and quantum information science.

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Microscopy 75%

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Provenance · 1 source records, 9 field assertions
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DataCite10.6084/m9.figshare.c.4224029.v111 d agoJSON v1
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concepts[field].fos:electrical-engineering-electronic-engineering-information-engineeringsource · DataCiteconnector:datacite@1.0.0
concepts[modality].local:modality:microscopyenrichment · DataCitekeyword-concept-rules@1.0.0title+description (75%)
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