Optical fiber microstructuration for strengthening single-mode laser operation in high power regime

Aurélien Benoit; Romain Dauliat; Kay Schuster; Stephan Grimm; François Salin; Raphaël Jamier; Philippe Roy

Optical fiber microstructuration for strengthening single-mode laser operation in high power regime

Aurélien Benoit ¹ Romain Dauliat ¹ Kay Schuster ² Stephan Grimm ² François Salin ³ Raphaël Jamier ¹ Philippe Roy ¹

1 XLIM-PHOT - Photonique Fibre et Sources Cohérentes

XLIM - XLIM : PHOT

2 IPHT - Institute of Photonic Technology

3 Eolite Systems

Abstract : We propose an in-depth investigation of all-solid microstructured optical fibers for the development of very large mode area (VLMA) fiber lasers. The inner cladding microstructure of these VLMA fibers is carefully optimized in order to get a robust single-mode laser operation in the high power regime. We describe the numerical approach used to devise a novel kind of fiber structures, the core of which should be larger than 50 ìm while showing an improved single-mode emission compared to that of the state-of-the-art large pitch fibers. With the aim of overpassing the limitations of chemical vapor deposition techniques, we opted for a manufacturing process called Repusil, based on the sintering and vitrification of doped powders. Then, our opto-geometrical considerations result from the optical properties offered by this method and the use of the stack and draw. Finally, we present our very first fabrication for the proposed all-solid microstructured fibers in which a laser emission of 52 W in a continuous wave regime was obtained.

Keywords : inner cladding microstructuration transverse single-mode operation all-solid fibers high power laser

Type de document :

Article dans une revue

Domaine :

Physique [physics] / Physique [physics] / Optique [physics.optics]

Liste complète des métadonnées

https://hal-unilim.archives-ouvertes.fr/hal-01025463
Contributeur : Raphael Jamier <>
Soumis le : jeudi 17 juillet 2014 - 17:49:28
Dernière modification le : jeudi 11 janvier 2018 - 06:27:35

Optical fiber microstructuration for strengthening single-mode laser operation in high power regime

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Optical fiber microstructuration for strengthening single-mode laser operation in high power regime

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