Optical isolation with nonlinear topological photonics
It is shown that the concept of topological phase transitions can be used to design nonlinear photonic structures exhibiting power thresholds and discontinuities in their transmittance. This provides a novel route to devising nonlinear optical isolators. We study three representative designs: (i) a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2017-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/aa7cb5 |
| _version_ | 1797750644963016704 |
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| author | Xin Zhou You Wang Daniel Leykam Y D Chong |
| author_facet | Xin Zhou You Wang Daniel Leykam Y D Chong |
| author_sort | Xin Zhou |
| collection | DOAJ |
| description | It is shown that the concept of topological phase transitions can be used to design nonlinear photonic structures exhibiting power thresholds and discontinuities in their transmittance. This provides a novel route to devising nonlinear optical isolators. We study three representative designs: (i) a waveguide array implementing a nonlinear 1D Su–Schrieffer–Heeger model, (ii) a waveguide array implementing a nonlinear 2D Haldane model, and (iii) a 2D lattice of coupled-ring waveguides. In the first two cases, we find a correspondence between the topological transition of the underlying linear lattice and the power threshold of the transmittance, and show that the transmission behavior is attributable to the emergence of a self-induced topological soliton. In the third case, we show that the topological transition produces a discontinuity in the transmittance curve, which can be exploited to achieve sharp jumps in the power-dependent isolation ratio. |
| first_indexed | 2024-03-12T16:35:50Z |
| format | Article |
| id | doaj.art-c3455d1d7b11408a8bfde51d5b467cf9 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:35:50Z |
| publishDate | 2017-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-c3455d1d7b11408a8bfde51d5b467cf92023-08-08T14:53:27ZengIOP PublishingNew Journal of Physics1367-26302017-01-0119909500210.1088/1367-2630/aa7cb5Optical isolation with nonlinear topological photonicsXin Zhou0You Wang1Daniel Leykam2Y D Chong3https://orcid.org/0000-0002-8649-7884Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, SingaporeDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, SingaporeDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, SingaporeDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore; Centre for Disruptive Photonic Technologies, Nanyang Technological University , Singapore 637371, SingaporeIt is shown that the concept of topological phase transitions can be used to design nonlinear photonic structures exhibiting power thresholds and discontinuities in their transmittance. This provides a novel route to devising nonlinear optical isolators. We study three representative designs: (i) a waveguide array implementing a nonlinear 1D Su–Schrieffer–Heeger model, (ii) a waveguide array implementing a nonlinear 2D Haldane model, and (iii) a 2D lattice of coupled-ring waveguides. In the first two cases, we find a correspondence between the topological transition of the underlying linear lattice and the power threshold of the transmittance, and show that the transmission behavior is attributable to the emergence of a self-induced topological soliton. In the third case, we show that the topological transition produces a discontinuity in the transmittance curve, which can be exploited to achieve sharp jumps in the power-dependent isolation ratio.https://doi.org/10.1088/1367-2630/aa7cb5optical isolatorssolitonstopological photonics |
| spellingShingle | Xin Zhou You Wang Daniel Leykam Y D Chong Optical isolation with nonlinear topological photonics New Journal of Physics optical isolators solitons topological photonics |
| title | Optical isolation with nonlinear topological photonics |
| title_full | Optical isolation with nonlinear topological photonics |
| title_fullStr | Optical isolation with nonlinear topological photonics |
| title_full_unstemmed | Optical isolation with nonlinear topological photonics |
| title_short | Optical isolation with nonlinear topological photonics |
| title_sort | optical isolation with nonlinear topological photonics |
| topic | optical isolators solitons topological photonics |
| url | https://doi.org/10.1088/1367-2630/aa7cb5 |
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