Bending-induced inter-core group delays ...
Type de document :
Compte-rendu et recension critique d'ouvrage
DOI :
Titre :
Bending-induced inter-core group delays in multicore fibers
Auteur(s) :
Tsvirkun, Viktor [Auteur]
Laboratoire de photonique et de nanostructures [LPN]
Sivankutty, Siddharth [Auteur]
Institut FRESNEL [FRESNEL]
MOSAIC [MOSAIC]
Bouwmans, Géraud [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Vanvincq, Olivier [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Andresen, Esben Ravn [Auteur]
MOSAIC [MOSAIC]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Rigneault, Herve [Auteur]
Institut FRESNEL [FRESNEL]
MOSAIC [MOSAIC]
Laboratoire de photonique et de nanostructures [LPN]
Sivankutty, Siddharth [Auteur]
Institut FRESNEL [FRESNEL]
MOSAIC [MOSAIC]
Bouwmans, Géraud [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Vanvincq, Olivier [Auteur]
![refId](/themes/Mirage2//images/idref.png)
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Andresen, Esben Ravn [Auteur]
![refId](/themes/Mirage2//images/idref.png)
MOSAIC [MOSAIC]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Rigneault, Herve [Auteur]
Institut FRESNEL [FRESNEL]
MOSAIC [MOSAIC]
Titre de la revue :
Optics Express
Pagination :
203901 - 31863
Éditeur :
Optical Society of America - OSA Publishing
Date de publication :
2017
ISSN :
1094-4087
Mot(s)-clé(s) en anglais :
Fiber properties
fibers single-mode
Fiber optics imaging
fibers single-mode
Fiber optics imaging
Discipline(s) HAL :
Sciences de l'ingénieur [physics]/Optique / photonique
Résumé en anglais : [en]
We examine the impact of fiber bends on ultrashort pulse propagation in a 169-core multicore fiber (MCF) by numerical simulations and experimental measurements. We show that an L-shaped bend (where only one end of the MCF ...
Lire la suite >We examine the impact of fiber bends on ultrashort pulse propagation in a 169-core multicore fiber (MCF) by numerical simulations and experimental measurements. We show that an L-shaped bend (where only one end of the MCF is fixed) induces significant changes in group delays that are a function of core position but linear along the bending axis with a slope directly proportional to the bending angle. For U-and S-shaped bends (where both ends of the MCF are fixed) the induced refractive index and group delay changes are much smaller than the residual, intrinsic inter-core group delay differences of the unbent MCF. We further show that when used for point-scanning lensless endoscopy with ultrashort pulse excitation, bend-induced group delays in the MCF degrade the point-spread function due to spatiotemporal coupling. Our results show that bend-induced effects in MCFs can be parametrized with only two parameters: the angle of the bend axis and the amplitude of the bend. This remains valid for bend amplitudes up to at least 200 degrees.Lire moins >
Lire la suite >We examine the impact of fiber bends on ultrashort pulse propagation in a 169-core multicore fiber (MCF) by numerical simulations and experimental measurements. We show that an L-shaped bend (where only one end of the MCF is fixed) induces significant changes in group delays that are a function of core position but linear along the bending axis with a slope directly proportional to the bending angle. For U-and S-shaped bends (where both ends of the MCF are fixed) the induced refractive index and group delay changes are much smaller than the residual, intrinsic inter-core group delay differences of the unbent MCF. We further show that when used for point-scanning lensless endoscopy with ultrashort pulse excitation, bend-induced group delays in the MCF degrade the point-spread function due to spatiotemporal coupling. Our results show that bend-induced effects in MCFs can be parametrized with only two parameters: the angle of the bend axis and the amplitude of the bend. This remains valid for bend amplitudes up to at least 200 degrees.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Projet ANR :
Source :
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