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Reconfigurable structured light generation in a multicore fibre amplifier

Author

Listed:
  • Di Lin

    (University of Southampton)

  • Joel Carpenter

    (The University of Queensland)

  • Yutong Feng

    (University of Southampton)

  • Saurabh Jain

    (University of Southampton)

  • Yongmin Jung

    (University of Southampton)

  • Yujun Feng

    (University of Southampton)

  • Michalis N. Zervas

    (University of Southampton)

  • David J. Richardson

    (University of Southampton)

Abstract

Structured light, with spatially varying phase or polarization distributions, has given rise to many novel applications in fields ranging from optical communication to laser-based material processing. However the efficient and flexible generation of such beams from a compact laser source at practical output powers still remains a great challenge. Here we describe an approach capable of addressing this need based on the coherent combination of multiple tailored Gaussian beams emitted from a multicore fibre (MCF) amplifier. We report a proof-of-concept structured light generation experiment, using a cladding-pumped 7-core MCF amplifier as an integrated parallel amplifier array and a spatial light modulator (SLM) to actively control the amplitude, polarization and phase of the signal light input to each fibre core. We report the successful generation of various structured light beams including high-order linearly polarized spatial fibre modes, cylindrical vector (CV) beams and helical phase front optical vortex (OV) beams.

Suggested Citation

  • Di Lin & Joel Carpenter & Yutong Feng & Saurabh Jain & Yongmin Jung & Yujun Feng & Michalis N. Zervas & David J. Richardson, 2020. "Reconfigurable structured light generation in a multicore fibre amplifier," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17809-x
    DOI: 10.1038/s41467-020-17809-x
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