All-optical switching in epsilon-near-zero asymmetric directional coupler.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
26 Oct 2022
26 Oct 2022
Historique:
received:
31
05
2022
accepted:
17
10
2022
entrez:
26
10
2022
pubmed:
27
10
2022
medline:
27
10
2022
Statut:
epublish
Résumé
We propose an all-optical switch based on an asymmetric directional coupler structure with epsilon-near-zero (ENZ) layer. The nonlinear optical properties the of ENZ layer are analyzed by hot-electron dynamics process, and the all-optical operating performance of the switch on the silicon nitride platform is investigated. It is found that the pump-induced refractive index change in ENZ layer gives rise to a transfer of signal light in the optical system. We demonstrate that the proposed switch design features an insertion loss of < 2.7 dB, low crosstalk of < - 18.93 dB, and sub-pico-second response time at the communication wavelength of 1.55 μm. With ultrafast response, high performance, and simple structure, the device provides new possibilities for all-optical communication and signal processing.
Identifiants
pubmed: 36289304
doi: 10.1038/s41598-022-22573-7
pii: 10.1038/s41598-022-22573-7
pmc: PMC9606007
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
17958Subventions
Organisme : Basic and Applied Basic Research Foundation of Guangdong Province
ID : 2021A1515012176
Organisme : Shenzhen Fundamental Research Program
ID : GXWD20201231165807007-20200827130534001
Organisme : Youth Science and Technology Innovation Talent of Guangdong Province
ID : 2019TQ05X227
Informations de copyright
© 2022. The Author(s).
Références
Opt Express. 2022 Apr 25;30(9):14518-14529
pubmed: 35473192
Opt Express. 2019 Sep 16;27(19):26405-26414
pubmed: 31674523
Opt Lett. 2016 Jun 1;41(11):2501-4
pubmed: 27244399
Nat Commun. 2016 Sep 29;7:12892
pubmed: 27682836
ACS Nano. 2019 Aug 27;13(8):9504-9510
pubmed: 31314482
Nature. 2019 May;569(7755):208-214
pubmed: 31068721
Sci Rep. 2018 Jun 19;8(1):9335
pubmed: 29921975
Opt Express. 2012 Oct 8;20(21):23971-7
pubmed: 23188363
Opt Express. 2018 Aug 20;26(17):21594-21605
pubmed: 30130863
Nat Mater. 2015 Apr;14(4):414-20
pubmed: 25686264
Nat Commun. 2017 Nov 2;8(1):1256
pubmed: 29093510
Proc Natl Acad Sci U S A. 2017 May 16;114(20):5125-5129
pubmed: 28461458
Opt Lett. 2018 Jan 1;43(1):94-97
pubmed: 29328204
Opt Express. 2014 May 5;22(9):10987-94
pubmed: 24921796
Nature. 2004 Oct 28;431(7012):1081-4
pubmed: 15510144
Science. 2016 May 13;352(6287):795-7
pubmed: 27127238
Nat Commun. 2021 Feb 15;12(1):1017
pubmed: 33589641
Opt Express. 2019 Oct 28;27(22):31394-31406
pubmed: 31684374
Sci Rep. 2017 Oct 6;7(1):12748
pubmed: 28986574
IEEE J Sel Top Quantum Electron. 2021 Spring;27(2):1-9
pubmed: 33154613
Phys Rev Lett. 2016 Jun 10;116(23):233901
pubmed: 27341234
Sci Rep. 2021 May 4;11(1):9474
pubmed: 33947896
Appl Opt. 2018 Apr 20;57(12):3260-3267
pubmed: 29714316