Open AccessMode area scaling with multi-trench rod-type fibers
Author(s) -
Deepak Jain,
Catherine Baskiotis,
J.K. Sahu
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.001448
Subject(s) - cladding (metalworking) , optics , equilibrium mode distribution , leakage (economics) , materials science , scaling , photonic crystal fiber , refractive index , optical fiber , single mode optical fiber , mode volume , trench , radiation mode , optoelectronics , physics , plastic optical fiber , multi mode optical fiber , geometry , mathematics , layer (electronics) , economics , metallurgy , composite material , macroeconomics
We propose a novel all-solid rod-type fiber structure that presents a cylindrical symmetry and low refractive-index contrasts. Effectively single-mode propagation for the fundamental mode is ensured thanks to resonant couplings between Higher Order Modes (HOMs) and cladding modes. Numerical simulations demonstrate the possibility of achieving a fundamental mode effective area as large as 5000 µm² at a wavelength of 1.06 μm in fibers ensuring a high leakage loss ratio (>100) between the HOMs and the fundamental mode while keeping the fundamental mode leakage losses at a level lower than 0.2dB/m. Further scaling to an effective area of 12,200 µm 2 at 1.06 μm in an effectively single-mode fiber is also presented by exploiting the power delocalization of several HOMs on top of the high-leakage loss filtering.