Hybrid microstructured optical fibre for guidance by means of photonic forbidden bands and by total internal reflection optimised for non-linear applications

US8442372B2 · kind B2 · utility

Assignee

• UNIVERSITE DES SCIENCES ET TECHNOLOGIES DE LILLE 1 · FR

Inventors

• Yves Quiquempois · Saint-André-lez-Lille, FR
• Géraud Bouwmans · Villeneuve-d'Ascq, FR
• Mathias Perrin · Olivet, FR
• Aurelie Betourne · Lille, FR
• Marc Douay · Lille, FR
• Karen Delplace · Estaires, FR
• Antoine Le Rouge · Lille, FR
• Laurent Bigot · Hellemmes, FR

Key dates

• Filing date: Jul 25, 2008
• Grant date: May 14, 2013
• Expiry date: Feb 3, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2202/32
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The microstructured optical fibre comprises a core (4) surrounded by a sheath (1) comprising a base material having a refraction index (ni) and a plurality of at least two different types of inclusion: a first type of inclusion (2) having a refraction index n2 (n2>n1), and a second type of inclusion (3) having a refraction index n3 (n3<n1). The inclusions (2, 3) are arranged and dimensioned in such a way as to ensure guidance, by total internal reflection (RTI), of a fundamental mode of the light, centred on a wavelength λRTI, and of a fundamental mode of the light in the first photonic forbidden band (BG1), centred on a wavelength λBG1, which is different to that λRTI of the fundamental mode guided by total internal reflection (RTI).