Phase dislocations in the negative curvature hollow core fibres

Andrey D. Pryamikov, Grigory K. Alagashev, Sergei Turitsyn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The negative curvature hollow core fibres (NCHCFs) [1-3] have attracted recently a great deal of attention because of their potential for many practical applications ranging from optical communications to high power lasers and power delivery. In the NCHCFs light is strongly localized in the air core due to the mode field interaction with the limited portions of the core-cladding boundary. In our work [4] we observed that the light leakage from the hollow core in NCHCFs has features which indicate the formation of phase dislocations and optical vortices in the cladding elements. Here we demonstrate that there are lines in the cladding capillary walls along which the imaginary and real parts of the transverse components of the core mode electric field Ex and Ey are equal to zero and can cross each other (the zero - amplitude lines). The direction of the transverse component of the core mode electric field is uncertain in the vicinity of these lines. Such behaviour of the core mode fields and its polarization indicates the presence of optical vortices in the cladding capillary wall [5].

Original languageEnglish
Title of host publication2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
PublisherIEEE
ISBN (Electronic)9781728104690
DOIs
Publication statusPublished - 17 Oct 2019
Event2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich, Germany
Duration: 23 Jun 201927 Jun 2019

Conference

Conference2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
CountryGermany
CityMunich
Period23/06/1927/06/19

Fingerprint

hollow
curvature
fibers
Fibers
Vortex flow
Electric fields
High power lasers
Optical communication
Polarization
vortices
electric fields
Air
high power lasers
optical communication
delivery
leakage
air
polarization

Cite this

Pryamikov, A. D., Alagashev, G. K., & Turitsyn, S. (2019). Phase dislocations in the negative curvature hollow core fibres. In 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 [8872345] IEEE. https://doi.org/10.1109/CLEOE-EQEC.2019.8872345
Pryamikov, Andrey D. ; Alagashev, Grigory K. ; Turitsyn, Sergei. / Phase dislocations in the negative curvature hollow core fibres. 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. IEEE, 2019.
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Pryamikov, AD, Alagashev, GK & Turitsyn, S 2019, Phase dislocations in the negative curvature hollow core fibres. in 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019., 8872345, IEEE, 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, Munich, Germany, 23/06/19. https://doi.org/10.1109/CLEOE-EQEC.2019.8872345

Phase dislocations in the negative curvature hollow core fibres. / Pryamikov, Andrey D.; Alagashev, Grigory K.; Turitsyn, Sergei.

2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. IEEE, 2019. 8872345.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - The negative curvature hollow core fibres (NCHCFs) [1-3] have attracted recently a great deal of attention because of their potential for many practical applications ranging from optical communications to high power lasers and power delivery. In the NCHCFs light is strongly localized in the air core due to the mode field interaction with the limited portions of the core-cladding boundary. In our work [4] we observed that the light leakage from the hollow core in NCHCFs has features which indicate the formation of phase dislocations and optical vortices in the cladding elements. Here we demonstrate that there are lines in the cladding capillary walls along which the imaginary and real parts of the transverse components of the core mode electric field Ex and Ey are equal to zero and can cross each other (the zero - amplitude lines). The direction of the transverse component of the core mode electric field is uncertain in the vicinity of these lines. Such behaviour of the core mode fields and its polarization indicates the presence of optical vortices in the cladding capillary wall [5].

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Pryamikov AD, Alagashev GK, Turitsyn S. Phase dislocations in the negative curvature hollow core fibres. In 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. IEEE. 2019. 8872345 https://doi.org/10.1109/CLEOE-EQEC.2019.8872345