High-power handling and bias stability of thin-film Lithium Tantalate microring and coupling resonators
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866914447314911232 |
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| author | Sayem, Ayed Uddin, Shiekh Zia Hu, Ting-Chen Tate, Alaric Cappuzzo, Mark Kopf, Rose Earnshaw, Mark |
| author_facet | Sayem, Ayed Uddin, Shiekh Zia Hu, Ting-Chen Tate, Alaric Cappuzzo, Mark Kopf, Rose Earnshaw, Mark |
| contents | In this paper, we demonstrate the ultra-high-power handling capability and DC bias stability of optical microring and electro-optic (EO) coupling resonators on the thin-film lithium tantalate (TFLT) platform. We show that, with annealing, oxide-cladded TFLT resonators can handle several watts (4W) of circulating power with minimal frequency shift and no observable photo-refractive effect. Furthermore, we demonstrate a compact 2mm coupling modulator achieving a low Vpi of 3V with stable bias and phase control in the telecom C-band. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_00922 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | High-power handling and bias stability of thin-film Lithium Tantalate microring and coupling resonators Sayem, Ayed Uddin, Shiekh Zia Hu, Ting-Chen Tate, Alaric Cappuzzo, Mark Kopf, Rose Earnshaw, Mark Optics In this paper, we demonstrate the ultra-high-power handling capability and DC bias stability of optical microring and electro-optic (EO) coupling resonators on the thin-film lithium tantalate (TFLT) platform. We show that, with annealing, oxide-cladded TFLT resonators can handle several watts (4W) of circulating power with minimal frequency shift and no observable photo-refractive effect. Furthermore, we demonstrate a compact 2mm coupling modulator achieving a low Vpi of 3V with stable bias and phase control in the telecom C-band. |
| title | High-power handling and bias stability of thin-film Lithium Tantalate microring and coupling resonators |
| topic | Optics |
| url | https://arxiv.org/abs/2602.00922 |