Hollow core photonic crystal fiber bundle for high energy ultra-short pulse laser applications

Alexandre Gorse; Pierre Guay; Matthieu Chafer; Benoít Beaudou; Fetah Benabid

doi:10.1117/12.3002780

8 March 2024 Hollow core photonic crystal fiber bundle for high energy ultra-short pulse laser applications

Alexandre Gorse, Pierre Guay, Matthieu Chafer, Benoít Beaudou, Fetah Benabid

Proceedings Volume 12882, Optical Components and Materials XXI; 128820J (2024) https://doi.org/10.1117/12.3002780
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We report the first, to our knowledge, linear HCPCF-bundle for USP laser beam-delivery, power-modulation, and spatial-shaping. This bundle comprises four identical inhibited coupling HCPCFs arranged in a linear array with a relative pitch-variation of less than 2% relative variation in array pitch. Each HCPCF is equipped with an acousto-optic modulator (AOM) for independent power modulation. A laser beam, from 1030 nm wavelength, 100μJ energy USP laser, is split into four beams and coupled to each of the HCPCFs in the bundle using a diffractive optic element. The system's insertion loss (from input to output through the AOM) is measured to be over 70%. The bundle system emits an array of four Gaussian beams, each with equal energy and beam size (both having less than 1% variation beam to beam). Each beam's power can be modulated independently. This development marks a significant advancement in harnessing HCPCF technology in applications requiring high-power light with spatial and temporal structuring.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Alexandre Gorse, Pierre Guay, Matthieu Chafer, Benoít Beaudou, and Fetah Benabid "Hollow core photonic crystal fiber bundle for high energy ultra-short pulse laser applications", Proc. SPIE 12882, Optical Components and Materials XXI, 128820J (8 March 2024); https://doi.org/10.1117/12.3002780

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