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Related Experiment Video

Updated: Dec 12, 2025

Writing Bragg Gratings in Multicore Fibers

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

Reconfigurable structured light generation in a multicore fibre amplifier.

Di Lin¹, Joel Carpenter², Yutong Feng³

¹Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK. di.lin@soton.ac.uk.

Nature Communications

|August 12, 2020

Summary

This study presents a new method for generating structured light beams using a multicore fiber amplifier and spatial light modulator. This approach enables efficient and flexible creation of complex light patterns for various applications.

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Area of Science:

Optics and Photonics
Laser Physics
Materials Science

Background:

Structured light, featuring controlled phase or polarization, has diverse applications.
Efficient generation of structured light from compact, high-power lasers remains a challenge.

Purpose of the Study:

To develop an efficient and flexible method for generating structured light beams.
To demonstrate a proof-of-concept using a multicore fiber amplifier and spatial light modulator.

Main Methods:

Coherent combination of multiple tailored Gaussian beams from a multicore fiber (MCF) amplifier.
Utilizing a cladding-pumped 7-core MCF amplifier as an integrated parallel amplifier array.
Employing a spatial light modulator (SLM) for active control of amplitude, polarization, and phase.

Main Results:

Successful generation of various structured light beams.
Demonstrated creation of high-order linearly polarized spatial fiber modes.
Generated cylindrical vector (CV) beams and optical vortex (OV) beams with helical phase fronts.

Conclusions:

The proposed approach offers an efficient and flexible solution for structured light generation.
This method integrates amplification and beam shaping in a compact system.
The technique is suitable for applications requiring complex light patterns at practical power levels.