Frozen mode in coupled single-mode waveguides with gratings
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866908878071922688 |
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| author | Herrero-Parareda, Albert Furman, Nathaniel Thompson, Bradley J. Gibson, Ricky Vitebskiy, Ilya Capolino, Filippo |
| author_facet | Herrero-Parareda, Albert Furman, Nathaniel Thompson, Bradley J. Gibson, Ricky Vitebskiy, Ilya Capolino, Filippo |
| contents | We present a systematic methodology for designing slow-light photonic integrated circuits with a frozen mode based on a special kind of exceptional point of degeneracy (EPD) of order three named stationary inflection points (SIPs). This is realized through three-way coupled waveguides with lateral gratings operating at telecommunication wavelengths. We provide two designs and analyze sensitivity to geometric perturbations. We have fabricated a periodic waveguide with integrated taper loads and demonstrate reasonable agreement with full-wave simulations. These findings confirm the feasibility of integrating SIP-based delay functionalities in standard silicon photonic platforms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_10286 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Frozen mode in coupled single-mode waveguides with gratings Herrero-Parareda, Albert Furman, Nathaniel Thompson, Bradley J. Gibson, Ricky Vitebskiy, Ilya Capolino, Filippo Optics We present a systematic methodology for designing slow-light photonic integrated circuits with a frozen mode based on a special kind of exceptional point of degeneracy (EPD) of order three named stationary inflection points (SIPs). This is realized through three-way coupled waveguides with lateral gratings operating at telecommunication wavelengths. We provide two designs and analyze sensitivity to geometric perturbations. We have fabricated a periodic waveguide with integrated taper loads and demonstrate reasonable agreement with full-wave simulations. These findings confirm the feasibility of integrating SIP-based delay functionalities in standard silicon photonic platforms. |
| title | Frozen mode in coupled single-mode waveguides with gratings |
| topic | Optics |
| url | https://arxiv.org/abs/2603.10286 |