Ultra-wideband electrically-tuned mid-infrared on-chip parametric oscillator
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arXiv
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866908947292618752 |
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| author | Hwang, Alexander Y. Stokowski, Hubert S. Qi, Luke Concepcion, David K. Ahn, Geun Ho Rosenfeld, Ethan Park, Taewon Dean, Devin J. Fejer, Martin M. Safavi-Naeini, Amir H. |
| author_facet | Hwang, Alexander Y. Stokowski, Hubert S. Qi, Luke Concepcion, David K. Ahn, Geun Ho Rosenfeld, Ethan Park, Taewon Dean, Devin J. Fejer, Martin M. Safavi-Naeini, Amir H. |
| contents | Developing compact, broadband mid-infrared coherent sources for applications in spectroscopy and sensing remains a pressing challenge in photonics. However, material limitations and integration constraints have restricted the accessible wavelengths and operation bandwidths of current mid-infrared lasers. Here, we address these challenges by developing a nonlinear integrated photonic device that converts a fixed-wavelength near-infrared pump laser into broadly tunable mid-infrared light. Our device, an optical parametric oscillator (OPO) integrated on thin-film lithium niobate, generates 22 THz of multi-milliwatt, voltage-tunable radiation from 2.7-3.4 microns, a region typically difficult to access but vital for environmental, chemical, and biological sensing. By introducing an on-chip-tunable OPO architecture taking advantage of the Vernier effect, we obtain electrical control of the emission wavelengths from coarse, multi-THz scales down to continuous, sub-100-GHz mode-hop-free tuning ranges. This work establishes a robust platform for a new class of compact, widely tunable mid-infrared sources with potential for future scaling. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_06673 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Ultra-wideband electrically-tuned mid-infrared on-chip parametric oscillator Hwang, Alexander Y. Stokowski, Hubert S. Qi, Luke Concepcion, David K. Ahn, Geun Ho Rosenfeld, Ethan Park, Taewon Dean, Devin J. Fejer, Martin M. Safavi-Naeini, Amir H. Optics Developing compact, broadband mid-infrared coherent sources for applications in spectroscopy and sensing remains a pressing challenge in photonics. However, material limitations and integration constraints have restricted the accessible wavelengths and operation bandwidths of current mid-infrared lasers. Here, we address these challenges by developing a nonlinear integrated photonic device that converts a fixed-wavelength near-infrared pump laser into broadly tunable mid-infrared light. Our device, an optical parametric oscillator (OPO) integrated on thin-film lithium niobate, generates 22 THz of multi-milliwatt, voltage-tunable radiation from 2.7-3.4 microns, a region typically difficult to access but vital for environmental, chemical, and biological sensing. By introducing an on-chip-tunable OPO architecture taking advantage of the Vernier effect, we obtain electrical control of the emission wavelengths from coarse, multi-THz scales down to continuous, sub-100-GHz mode-hop-free tuning ranges. This work establishes a robust platform for a new class of compact, widely tunable mid-infrared sources with potential for future scaling. |
| title | Ultra-wideband electrically-tuned mid-infrared on-chip parametric oscillator |
| topic | Optics |
| url | https://arxiv.org/abs/2604.06673 |