Flexible cross-correlated (C2) imaging method for the modal content characterization in a broad range of wavelengths

Olena Muliar; Mario A. Usuga Castaneda; Mattia Michieletto; Torben Kristensen; Thomas T. Alkeskjold; Karsten Rottwitt; Jesper Lægsgaard

doi:10.1364/OE.25.005521

Flexible cross-correlated (C2) imaging method for the modal content characterization in a broad range of wavelengths

Olena Muliar, Mario A. Usuga Castaneda, Mattia Michieletto, Torben Kristensen, Thomas T. Alkeskjold, Karsten Rottwitt, Jesper Lægsgaard

Centre of Excellence for Silicon Photonics for Optical Communications

NKT Group

Research output: Contribution to journal › Journal article › Research › peer-review

488 Downloads (Pure)

Abstract

We demonstrate a flexible cross-correlated (C²) imaging method in the time domain by application of a tunable and highly flexible light source. An advantage of the flexible C²method is shown by characterization of the step-index fiber (SMF28) over a broad range of wavelengths from 870nm to 1090nm and by the modal analysis of the distributed modal filtering (DMF) rod fiber within a wavelength range from 1050nm to 1090nm. Also, the influence of the spectral shape and bandwidth on the imaging trace is investigated by deliberately adjusting the input spectrum of the light source. The modal intensity as well as the phase distribution are extracted by the alternative method of 2D FT filtering. Being exceptionally tunable the flexible C² method gives an ability to adapt the system’s parameters in a desired manner satisfying even
measurements of very specific fiber designs opening up new possibilities for advanced modal characterization of fibers over broad range of wavelengths.

Original language	English
Article number	281618
Journal	Optics Express
Volume	25
Issue number	5
Pages (from-to)	5521-5535
ISSN	1094-4087
DOIs	https://doi.org/10.1364/OE.25.005521
Publication status	Published - 2017

Access to Document

10.1364/OE.25.005521

Flexible cross correlated C2 imaging method for the modal content characterization in a broad range of wavelengthsFinal published version, 3.18 MB

OpenUrl availability

Full text

Cite this

@article{79756950e122476fa1235daafb300683,

title = "Flexible cross-correlated (C2) imaging method for the modal content characterization in a broad range of wavelengths",

abstract = "We demonstrate a flexible cross-correlated (C2) imaging method in the time domain by application of a tunable and highly flexible light source. An advantage of the flexible C2method is shown by characterization of the step-index fiber (SMF28) over a broad range of wavelengths from 870nm to 1090nm and by the modal analysis of the distributed modal filtering (DMF) rod fiber within a wavelength range from 1050nm to 1090nm. Also, the influence of the spectral shape and bandwidth on the imaging trace is investigated by deliberately adjusting the input spectrum of the light source. The modal intensity as well as the phase distribution are extracted by the alternative method of 2D FT filtering. Being exceptionally tunable the flexible C2 method gives an ability to adapt the system{\textquoteright}s parameters in a desired manner satisfying evenmeasurements of very specific fiber designs opening up new possibilities for advanced modal characterization of fibers over broad range of wavelengths.",

author = "Olena Muliar and {Usuga Castaneda}, {Mario A.} and Mattia Michieletto and Torben Kristensen and Alkeskjold, {Thomas T.} and Karsten Rottwitt and Jesper L{\ae}gsgaard",

year = "2017",

doi = "10.1364/OE.25.005521",

language = "English",

volume = "25",

pages = "5521--5535",

journal = "Optics Express",

issn = "1094-4087",

publisher = "The Optical Society",

number = "5",

}

TY - JOUR

T1 - Flexible cross-correlated (C2) imaging method for the modal content characterization in a broad range of wavelengths

AU - Muliar, Olena

AU - Usuga Castaneda, Mario A.

AU - Michieletto, Mattia

AU - Kristensen, Torben

AU - Alkeskjold, Thomas T.

AU - Rottwitt, Karsten

AU - Lægsgaard, Jesper

PY - 2017

Y1 - 2017

N2 - We demonstrate a flexible cross-correlated (C2) imaging method in the time domain by application of a tunable and highly flexible light source. An advantage of the flexible C2method is shown by characterization of the step-index fiber (SMF28) over a broad range of wavelengths from 870nm to 1090nm and by the modal analysis of the distributed modal filtering (DMF) rod fiber within a wavelength range from 1050nm to 1090nm. Also, the influence of the spectral shape and bandwidth on the imaging trace is investigated by deliberately adjusting the input spectrum of the light source. The modal intensity as well as the phase distribution are extracted by the alternative method of 2D FT filtering. Being exceptionally tunable the flexible C2 method gives an ability to adapt the system’s parameters in a desired manner satisfying evenmeasurements of very specific fiber designs opening up new possibilities for advanced modal characterization of fibers over broad range of wavelengths.

AB - We demonstrate a flexible cross-correlated (C2) imaging method in the time domain by application of a tunable and highly flexible light source. An advantage of the flexible C2method is shown by characterization of the step-index fiber (SMF28) over a broad range of wavelengths from 870nm to 1090nm and by the modal analysis of the distributed modal filtering (DMF) rod fiber within a wavelength range from 1050nm to 1090nm. Also, the influence of the spectral shape and bandwidth on the imaging trace is investigated by deliberately adjusting the input spectrum of the light source. The modal intensity as well as the phase distribution are extracted by the alternative method of 2D FT filtering. Being exceptionally tunable the flexible C2 method gives an ability to adapt the system’s parameters in a desired manner satisfying evenmeasurements of very specific fiber designs opening up new possibilities for advanced modal characterization of fibers over broad range of wavelengths.

U2 - 10.1364/OE.25.005521

DO - 10.1364/OE.25.005521

M3 - Journal article

C2 - 28380811

SN - 1094-4087

VL - 25

SP - 5521

EP - 5535

JO - Optics Express

JF - Optics Express

IS - 5

M1 - 281618

ER -

Flexible cross-correlated (C2) imaging method for the modal content characterization in a broad range of wavelengths

Abstract

Access to Document

OpenUrl availability

Fingerprint

Cite this