Effect of Relative Phase on the Stability of Temporal Bright Solitons in a PT- Symmetric NLDC
In this paper we numerically investigate the effect of relative phase on thestability of temporal bright solitons in a Nano PT- Symmetric nonlinear directionalcoupler (NLDC) by considering gain in bar and loss in cross. We also study the effect ofrelative phase on the output perturbed bright soliton...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Islamic Azad University, Marvdasht Branch
2018-09-01
|
| Series: | Journal of Optoelectronical Nanostructures |
| Subjects: | |
| Online Access: | https://jopn.marvdasht.iau.ir/article_3044_24bbebf18999605ca0b0125a2f6c8867.pdf |
| _version_ | 1797849275774795776 |
|---|---|
| author | Lida Safaei mahmood Borhani Zarandi Mohsen Hatami |
| author_facet | Lida Safaei mahmood Borhani Zarandi Mohsen Hatami |
| author_sort | Lida Safaei |
| collection | DOAJ |
| description | In this paper we numerically investigate the effect of relative phase on thestability of temporal bright solitons in a Nano PT- Symmetric nonlinear directionalcoupler (NLDC) by considering gain in bar and loss in cross. We also study the effect ofrelative phase on the output perturbed bright solitons energies, in the range of 0 to 180 . By using perturbation theory three eigenfunctions and correspondingeigenvalues were derived analytically. These eigenvalues behave like equilibrium pointsand are not stable in all cases. Stability of these perturbed solitons under the effect ofrelative phase are examined and show that temporal bright solitons are almost unstable inthe range of 0 to 90 , but they keep their solitary shapes in the range of 90to 180 . In addition the evolution of normalized energies in these ranges areinvestigated.Output pulse energy at bar and cross strongly depend on the relative phase. This effectin a PT-Symmetric NLDC can be used for designing all-optical ultrafast self-switchesand logic gates and Nano structures. |
| first_indexed | 2024-04-09T18:41:15Z |
| format | Article |
| id | doaj.art-edfe73e1e4e04df88ed53682ac0548c2 |
| institution | Directory Open Access Journal |
| issn | 2423-7361 2538-2489 |
| language | English |
| last_indexed | 2024-04-09T18:41:15Z |
| publishDate | 2018-09-01 |
| publisher | Islamic Azad University, Marvdasht Branch |
| record_format | Article |
| series | Journal of Optoelectronical Nanostructures |
| spelling | doaj.art-edfe73e1e4e04df88ed53682ac0548c22023-04-11T05:09:03ZengIslamic Azad University, Marvdasht BranchJournal of Optoelectronical Nanostructures2423-73612538-24892018-09-013337463044Effect of Relative Phase on the Stability of Temporal Bright Solitons in a PT- Symmetric NLDCLida Safaei0mahmood Borhani Zarandi1Mohsen Hatami2Department of Physics, Yazd University, Yazd, IranDepartment of Physics, Yazd University, Yazd, IranDepartment of Physics, University of Shiraz Technology, Shiraz, IranIn this paper we numerically investigate the effect of relative phase on thestability of temporal bright solitons in a Nano PT- Symmetric nonlinear directionalcoupler (NLDC) by considering gain in bar and loss in cross. We also study the effect ofrelative phase on the output perturbed bright solitons energies, in the range of 0 to 180 . By using perturbation theory three eigenfunctions and correspondingeigenvalues were derived analytically. These eigenvalues behave like equilibrium pointsand are not stable in all cases. Stability of these perturbed solitons under the effect ofrelative phase are examined and show that temporal bright solitons are almost unstable inthe range of 0 to 90 , but they keep their solitary shapes in the range of 90to 180 . In addition the evolution of normalized energies in these ranges areinvestigated.Output pulse energy at bar and cross strongly depend on the relative phase. This effectin a PT-Symmetric NLDC can be used for designing all-optical ultrafast self-switchesand logic gates and Nano structures.https://jopn.marvdasht.iau.ir/article_3044_24bbebf18999605ca0b0125a2f6c8867.pdffiber couplersnonlinear opticsphotonicssolitonspt-symmetrynano structures |
| spellingShingle | Lida Safaei mahmood Borhani Zarandi Mohsen Hatami Effect of Relative Phase on the Stability of Temporal Bright Solitons in a PT- Symmetric NLDC Journal of Optoelectronical Nanostructures fiber couplers nonlinear optics photonics solitons pt-symmetry nano structures |
| title | Effect of Relative Phase on the Stability of Temporal Bright Solitons in a PT- Symmetric NLDC |
| title_full | Effect of Relative Phase on the Stability of Temporal Bright Solitons in a PT- Symmetric NLDC |
| title_fullStr | Effect of Relative Phase on the Stability of Temporal Bright Solitons in a PT- Symmetric NLDC |
| title_full_unstemmed | Effect of Relative Phase on the Stability of Temporal Bright Solitons in a PT- Symmetric NLDC |
| title_short | Effect of Relative Phase on the Stability of Temporal Bright Solitons in a PT- Symmetric NLDC |
| title_sort | effect of relative phase on the stability of temporal bright solitons in a pt symmetric nldc |
| topic | fiber couplers nonlinear optics photonics solitons pt-symmetry nano structures |
| url | https://jopn.marvdasht.iau.ir/article_3044_24bbebf18999605ca0b0125a2f6c8867.pdf |
| work_keys_str_mv | AT lidasafaei effectofrelativephaseonthestabilityoftemporalbrightsolitonsinaptsymmetricnldc AT mahmoodborhanizarandi effectofrelativephaseonthestabilityoftemporalbrightsolitonsinaptsymmetricnldc AT mohsenhatami effectofrelativephaseonthestabilityoftemporalbrightsolitonsinaptsymmetricnldc |