Tailoring modal properties of inhibited-coupling guiding fibers by cladding modification

Autor: Jonas H. Osório, Foued Amrani, Fetah Benabid, Fabio Giovanardi, Luca Vincetti, Frederic Gerome, Benoit Debord, Frederic Delahaye, Matthieu Chafer, Martin Cordier, Martin Maurel
Přispěvatelé: Photonique Fibre et Sources Cohérentes (XLIM-PHOT), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), GLOphotonics S.A.S., Laboratoire Traitement et Communication de l'Information (LTCI), Télécom ParisTech-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2019
Předmět:
Zdroj: Scientific Reports
Scientific Reports, Nature Publishing Group, 2019, 9 (1376), ⟨10.1038/s41598-018-37948-y⟩
Scientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
ISSN: 2045-2322
DOI: 10.1038/s41598-018-37948-y
Popis: Understanding cladding properties is crucial for designing microstructured optical fibers. This is particularly acute for Inhibited-Coupling guiding fibers because of the reliance of their core guidance on the core and cladding mode-field overlap integral. Consequently, careful planning of the fiber cladding parameters allows obtaining fibers with optimized characteristics such as low loss and broad transmission bandwidth. In this manuscript, we report on how one can tailor the modal properties of hollow-core photonic crystal fibers by adequately modifying the fiber cladding. We show that the alteration of the position of the tubular fibers cladding tubes can alter the loss hierarchy of the modes in these fibers, and exhibit salient polarization propriety. In this context, we present two fibers with different cladding structures which favor propagation of higher order core modes – namely LP11 and LP21 modes. Additionally, we provide discussions on mode transformations in these fibers and show that one can obtain uncommon intensity and polarization profiles at the fiber output. This allows the fiber to act as a mode intensity and polarization shaper. We envisage this novel concept can be useful for a variety of applications such as hollow core fiber based atom optics, atom-surface physics, sensing and nonlinear optics.
Databáze: OpenAIRE