Grating assisted glass fiber coupler for mode selective co-directional coupling

Authored by

Sebastian Schlangen, Kort Bremer, Sebastian Böhm, Felix Wellmann, Michael Steinke, Jörg Neumann, Bernhard Roth, Ludger Overmeyer

Abstract

To keep pace with the increasing demand of transmission capacity, space division multiplexing technologies are currently intensively investigated. In this context, mode selective glass fiber couplers are of great interest due to their compatibility with existing glass fiber networks. In this work, we present a novel type of mode selective glass fiber coupler for co-directional coupling based on fiber gratings and fused asymmetric fibers. The achieved mode selective coupling efficiency agrees well with numerical simulations performed for comparison. The benefits of the grating approach are a lower mode crosstalk and a simple adaption of the propagation constants through changing of the grating-period.

Details

Organisation(s)
Hannover Centre for Optical Technologies (HOT)
External Organisation(s)
Laser Zentrum Hannover e.V. (LZH)
Type
Article
Journal
Optics Letters
Volume
44
Pages
2342-2345
No. of pages
4
ISSN
0146-9592
Publication date
01.05.2019
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Atomic and Molecular Physics, and Optics
Electronic version(s)
https://doi.org/10.1364/ol.44.002342 (Access: Closed )

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