Non-volatile Tuning of Cryogenic Optical Resonators
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arXiv
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| Format: | Preprint |
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2024
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| author | Adya, Uthkarsh Chen, Rui Chen, I-Tung Joshi, Sanskriti Majumdar, Arka Li, Mo Moazeni, Sajjad |
| author_facet | Adya, Uthkarsh Chen, Rui Chen, I-Tung Joshi, Sanskriti Majumdar, Arka Li, Mo Moazeni, Sajjad |
| contents | Quantum computing, ultra-low-noise sensing, and high-energy physics experiments often rely on superconducting circuits or semiconductor qubits and devices operating at deep cryogenic temperatures (4K and below). Photonic integrated circuits and interconnects have been demonstrated for scalable communications and optical domain transduction in these systems. Due to energy and area constraints, many of these devices need enhanced light-matter interaction, provided by photonic resonators. A key challenge, however, for using these resonators is the sensitivity of resonance wavelength to process variations and thermal fluctuations. While thermo-optical tuning methods are typically employed at room temperature to mitigate this problem, the thermo-optic effect is ineffective at 4K. To address this issue, we demonstrate a non-volatile approach to tune the resonance of photonic resonators using integrated phase-change materials (PCMs) at cryogenic temperatures. In this work, we report a 10Gb/s free-carrier dispersion based resonant photonic modulator that can be tuned in a non-volatile fashion at sub-4K temperatures using a commercial silicon photonics process. This method paves the way for realizing scalable cryogenic integrated photonics with thousands of resonant devices for quantum and high-energy physics applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_08572 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Non-volatile Tuning of Cryogenic Optical Resonators Adya, Uthkarsh Chen, Rui Chen, I-Tung Joshi, Sanskriti Majumdar, Arka Li, Mo Moazeni, Sajjad Optics High Energy Physics - Experiment Quantum computing, ultra-low-noise sensing, and high-energy physics experiments often rely on superconducting circuits or semiconductor qubits and devices operating at deep cryogenic temperatures (4K and below). Photonic integrated circuits and interconnects have been demonstrated for scalable communications and optical domain transduction in these systems. Due to energy and area constraints, many of these devices need enhanced light-matter interaction, provided by photonic resonators. A key challenge, however, for using these resonators is the sensitivity of resonance wavelength to process variations and thermal fluctuations. While thermo-optical tuning methods are typically employed at room temperature to mitigate this problem, the thermo-optic effect is ineffective at 4K. To address this issue, we demonstrate a non-volatile approach to tune the resonance of photonic resonators using integrated phase-change materials (PCMs) at cryogenic temperatures. In this work, we report a 10Gb/s free-carrier dispersion based resonant photonic modulator that can be tuned in a non-volatile fashion at sub-4K temperatures using a commercial silicon photonics process. This method paves the way for realizing scalable cryogenic integrated photonics with thousands of resonant devices for quantum and high-energy physics applications. |
| title | Non-volatile Tuning of Cryogenic Optical Resonators |
| topic | Optics High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2410.08572 |