BOHATA, J., et al. Precise Measuring Test Bed for Characterization of Mode Field Distribution in Different types of Multimode Fibers. In: VODRÁŽKA, J., ed. Optical Communications 2019. 30th Conference and Exhibition on OPTICAL COMMUNICATIONS 2019, Praha, Česká republika, 2019-11-11/2019-11-12. Praha: Zeithamlová Milena Ing. - Agentura Action M, 2019. p. 32-36. ISBN 978-80-86742-52-6.
In this paper we present experimental results from
precise measurements of mode field distribution in various
commercial multimode (MM) fiber types. We characterize the
mode field distribution by the encircled flux (EF) parameter. EF
determines optimal launch conditions in the core of the MM fiber,
which is crucial especially for accurate characterizing of insertion
losses at fiber connections, e.g. in data centers. For the purpose of
EF measurement, a universal testbed enabling mode field
characterization, integral optical power estimation or fiber
connector cleanness evaluation has been proposed and
experimentally verified. The uniqueness of the proposed testbed
lies in backlighting of the tested MM fiber. This backlighting
enables accurate positioning of the MM fiber end-face with the
collimating lens to measure in the near-field area. The testbed
allows the deployment of variable MM fibers and is also
wavelength independent. Therefore it has the high potential within
growing usage of plastic or large core fibers for short-range
communications, e.g. in automotive or avionics. The obtained
results are discussed within a selected real application. Moreover,
since the mode field distribution is evaluated even for fibers, which
do not have available any standards for EF characterization, we
present new recommendations for optimal launch conditions in
such fibers.
eng
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Zeithamlová Milena Ing. - Agentura Action M
dc.relation.ispartof
Optical Communications 2019
dc.subject
encircled flux
eng
dc.title
Precise Measuring Test Bed for Characterization of Mode Field Distribution in Different types of Multimode Fibers
eng
dc.type
stať ve sborníku
cze
dc.type
conference paper
eng
dc.relation.projectid
info:eu-repo/grantAgreement/Ministry of Industry and Trade/FV/FV10519/CZ/Analyzer of modal structure in optical components/
dc.rights.access
restrictedAccess
dc.type.status
Peer-reviewed
dc.type.version
publishedVersion
dc.relation.conference
30th Conference and Exhibition on OPTICAL COMMUNICATIONS 2019