Tran, Minh C. and Tran, Truong X. (2023) Beyond-band discrete soliton interaction in binary waveguide arrays. Chaos, 33 (6). ISSN 10541500
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We investigate different scenarios of interaction between two beyond-band discrete solitons (BBDSs), which are a new class of solitons in binary waveguide arrays and have been investigated just recently. In the quasi-continuous regime when solitons intensity is low and, thus, solitons are broad, two BBDSs with the same envelope in binary waveguide arrays interact with each other practically like two well-known fundamental solitons governed by the nonlinear Schrödinger equation in a single optical fiber. However, this similarity disappears if the discrete nature of the system is enhanced by increasing the intensity of BBDSs. In that case, two initially in-phase BBDSs with the same detuning cannot periodically collide during propagation. We also show that single-peaked BBDSs are more robust and less mobile than double-peaked BBDSs with the same detuning. This robustness stops two identical single-peaked BBDSs from interaction even at initial separations when double-peaked BBDSs can still strongly interact with each other or with single-peaked BBDSs. © 2023 Author(s).
Item Type: | Article |
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Divisions: | Faculties > Faculty of Physical and Chemical Engineering |
Identification Number: | 10.1063/5.0147367 |
Additional Information: | All Open Access, Bronze Open Access |
URI: | http://eprints.lqdtu.edu.vn/id/eprint/10849 |