Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 32,
  • Issue 13,
  • pp. 2382-2391
  • (2014)

Analysis of the Coupling Mechanism in Asymmetric Fused Fiber Couplers

Not Accessible

Your library or personal account may give you access

Abstract

We investigated experimentally and numerically the coupling mechanism in asymmetric fused fiber couplers consisting of different single-mode fibers with unequal core diameter and numerical aperture. We increased the maximum coupled power by pretapering one of the fibers achieving a nearly complete power transfer at a specific pretaper length. Experimental results are compared to numerical results obtained by using our own 3-D FFT-based beam propagation method (BPM) algorithm. The numerical model explains qualitatively the coupler performance and allows to gain insight into the coupling mechanism. We discuss the influence of the fiber cores on the excited super-modes of the cladding structure. A modal decomposition of the light field is carried out in order to analyze the evolution of the super-modes and to discuss the influence of pretapering on the excitation of these modes.

© 2014 IEEE

PDF Article
More Like This
Analysis of the modal evolution in fused-type mode-selective fiber couplers

Gabriel Pelegrina-Bonilla, Katharina Hausmann, Hakan Sayinc, Uwe Morgner, Jörg Neumann, and Dietmar Kracht
Opt. Express 23(18) 22977-22990 (2015)

Matching of the propagation constants in an asymmetric single-mode fused fiber coupler for core pumping thulium-doped fiber at 795 nm

Gabriel Pelegrina-Bonilla, Katharina Hausmann, Kai Liu, Hakan Sayinc, Uwe Morgner, Jörg Neumann, and Dietmar Kracht
Opt. Lett. 37(11) 1844-1846 (2012)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved