Design of Spatial-Mode (De)Multiplexer for Few-Mode Fibers Based on a Cyclically Used Michelson-Like Interferometer

Few mode optical fibers are a promising way to continue increasing the data rate in optical communications. However, an efficient method to launch and extract separately each mode is essential. The design of a interferometric spatial mode (de)multiplexer for few mode optical fibers is presented. It...

Full description

Bibliographic Details
Main Authors: Xesús Prieto-Blanco, Carlos Montero-Orille, Vicente Moreno de Las Cuevas, María C. Nistal, Dolores Mouriz, Jesús Liñares
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/10/23/8584
_version_ 1797546169523503104
author Xesús Prieto-Blanco
Carlos Montero-Orille
Vicente Moreno de Las Cuevas
María C. Nistal
Dolores Mouriz
Jesús Liñares
author_facet Xesús Prieto-Blanco
Carlos Montero-Orille
Vicente Moreno de Las Cuevas
María C. Nistal
Dolores Mouriz
Jesús Liñares
author_sort Xesús Prieto-Blanco
collection DOAJ
description Few mode optical fibers are a promising way to continue increasing the data rate in optical communications. However, an efficient method to launch and extract separately each mode is essential. The design of a interferometric spatial mode (de)multiplexer for few mode optical fibers is presented. It is based on a single Michelson-like interferometer which consists of standard optical elements and has a reflective image inverter in one arm. Particular care has been taken in its design so that both polarizations behave the same. Moreover, this interferometer can process several pairs of modes simultaneously. The multiplexer also consists of: a phase plate, focusing optics at both ports of the interferometer and elliptical core fibers to recirculate some outputs. It can multiplex ten spatial and polarization modes and it presents low losses and no intrinsic crosstalk between modes. Additionally, it is polarization insensitive, achromatic, compact and inexpensive. The same system can work as a demultiplexer when used in reverse. In this case, both the losses and the crosstalk remain very low. Similar designs that perform other functions, like an add-drop mode multiplexing, are also suggested.
first_indexed 2024-03-10T14:25:17Z
format Article
id doaj.art-756d57999dcd49d388387fc3e2e47c08
institution Directory Open Access Journal
issn 2076-3417
language English
last_indexed 2024-03-10T14:25:17Z
publishDate 2020-11-01
publisher MDPI AG
record_format Article
series Applied Sciences
spelling doaj.art-756d57999dcd49d388387fc3e2e47c082023-11-20T23:00:58ZengMDPI AGApplied Sciences2076-34172020-11-011023858410.3390/app10238584Design of Spatial-Mode (De)Multiplexer for Few-Mode Fibers Based on a Cyclically Used Michelson-Like InterferometerXesús Prieto-Blanco0Carlos Montero-Orille1Vicente Moreno de Las Cuevas2María C. Nistal3Dolores Mouriz4Jesús Liñares5Quantum Materials and Photonics Research Group, Department of Applied Physics, Faculty of Physics/Faculty of Optics and Optometry, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Galicia, SpainQuantum Materials and Photonics Research Group, Department of Applied Physics, Faculty of Physics/Faculty of Optics and Optometry, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Galicia, SpainQuantum Materials and Photonics Research Group, Department of Applied Physics, Faculty of Physics/Faculty of Optics and Optometry, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Galicia, SpainQuantum Materials and Photonics Research Group, Department of Applied Physics, Faculty of Physics/Faculty of Optics and Optometry, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Galicia, SpainQuantum Materials and Photonics Research Group, Department of Applied Physics, Faculty of Physics/Faculty of Optics and Optometry, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Galicia, SpainQuantum Materials and Photonics Research Group, Department of Applied Physics, Faculty of Physics/Faculty of Optics and Optometry, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Galicia, SpainFew mode optical fibers are a promising way to continue increasing the data rate in optical communications. However, an efficient method to launch and extract separately each mode is essential. The design of a interferometric spatial mode (de)multiplexer for few mode optical fibers is presented. It is based on a single Michelson-like interferometer which consists of standard optical elements and has a reflective image inverter in one arm. Particular care has been taken in its design so that both polarizations behave the same. Moreover, this interferometer can process several pairs of modes simultaneously. The multiplexer also consists of: a phase plate, focusing optics at both ports of the interferometer and elliptical core fibers to recirculate some outputs. It can multiplex ten spatial and polarization modes and it presents low losses and no intrinsic crosstalk between modes. Additionally, it is polarization insensitive, achromatic, compact and inexpensive. The same system can work as a demultiplexer when used in reverse. In this case, both the losses and the crosstalk remain very low. Similar designs that perform other functions, like an add-drop mode multiplexing, are also suggested.https://www.mdpi.com/2076-3417/10/23/8584optical fibersspace division multiplexingfew mode fibersmode sortinginterferometers
spellingShingle Xesús Prieto-Blanco
Carlos Montero-Orille
Vicente Moreno de Las Cuevas
María C. Nistal
Dolores Mouriz
Jesús Liñares
Design of Spatial-Mode (De)Multiplexer for Few-Mode Fibers Based on a Cyclically Used Michelson-Like Interferometer
Applied Sciences
optical fibers
space division multiplexing
few mode fibers
mode sorting
interferometers
title Design of Spatial-Mode (De)Multiplexer for Few-Mode Fibers Based on a Cyclically Used Michelson-Like Interferometer
title_full Design of Spatial-Mode (De)Multiplexer for Few-Mode Fibers Based on a Cyclically Used Michelson-Like Interferometer
title_fullStr Design of Spatial-Mode (De)Multiplexer for Few-Mode Fibers Based on a Cyclically Used Michelson-Like Interferometer
title_full_unstemmed Design of Spatial-Mode (De)Multiplexer for Few-Mode Fibers Based on a Cyclically Used Michelson-Like Interferometer
title_short Design of Spatial-Mode (De)Multiplexer for Few-Mode Fibers Based on a Cyclically Used Michelson-Like Interferometer
title_sort design of spatial mode de multiplexer for few mode fibers based on a cyclically used michelson like interferometer
topic optical fibers
space division multiplexing
few mode fibers
mode sorting
interferometers
url https://www.mdpi.com/2076-3417/10/23/8584
work_keys_str_mv AT xesusprietoblanco designofspatialmodedemultiplexerforfewmodefibersbasedonacyclicallyusedmichelsonlikeinterferometer
AT carlosmonteroorille designofspatialmodedemultiplexerforfewmodefibersbasedonacyclicallyusedmichelsonlikeinterferometer
AT vicentemorenodelascuevas designofspatialmodedemultiplexerforfewmodefibersbasedonacyclicallyusedmichelsonlikeinterferometer
AT mariacnistal designofspatialmodedemultiplexerforfewmodefibersbasedonacyclicallyusedmichelsonlikeinterferometer
AT doloresmouriz designofspatialmodedemultiplexerforfewmodefibersbasedonacyclicallyusedmichelsonlikeinterferometer
AT jesuslinares designofspatialmodedemultiplexerforfewmodefibersbasedonacyclicallyusedmichelsonlikeinterferometer