Fundamental Thermal Noise Limits for Optical Microcavities
© 2020 authors. Published by the American Physical Society. We present a joint theoretical and experimental analysis of thermorefractive noise in high-quality-factor (Q), small-mode-volume (V) optical microcavities. Analogous to well-studied stability limits imposed by Brownian motion in macroscopic...
| Autores principales: | , , |
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| Otros Autores: | |
| Formato: | Artículo |
| Lenguaje: | English |
| Publicado: |
American Physical Society (APS)
2022
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| Acceso en línea: | https://hdl.handle.net/1721.1/143530 |
| _version_ | 1826217585710989312 |
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| author | Panuski, Christopher Englund, Dirk Hamerly, Ryan |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Panuski, Christopher Englund, Dirk Hamerly, Ryan |
| author_sort | Panuski, Christopher |
| collection | MIT |
| description | © 2020 authors. Published by the American Physical Society. We present a joint theoretical and experimental analysis of thermorefractive noise in high-quality-factor (Q), small-mode-volume (V) optical microcavities. Analogous to well-studied stability limits imposed by Brownian motion in macroscopic Fabry-Perot resonators, we show that microcavity thermorefractive noise gives rise to a mode-volume-dependent maximum effective quality factor. State-of-The-Art fabricated microcavities are found to be within one order of magnitude of this bound. By measuring the first thermodynamically limited frequency noise spectra of wavelength-scale high-Q/V silicon photonic crystal cavities, we confirm the assumptions of our theory, demonstrate a broadband sub-μK/Hz temperature sensitivity, and unveil a new technique for discerning subwavelength changes in microcavity mode volumes. To illustrate the immediate implications of these results, we show that thermorefractive noise limits the optimal performance of recently proposed room-Temperature, all-optical qubits using cavity-enhanced bulk material nonlinearities. Looking forward, we propose and analyze coherent thermo-optic noise cancellation as one potential avenue toward violating these bounds, thereby enabling continued development in quantum optical measurement, precision sensing, and low-noise integrated photonics. |
| first_indexed | 2024-09-23T17:06:01Z |
| format | Article |
| id | mit-1721.1/143530 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T17:06:01Z |
| publishDate | 2022 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1435302023-08-11T17:37:12Z Fundamental Thermal Noise Limits for Optical Microcavities Panuski, Christopher Englund, Dirk Hamerly, Ryan Massachusetts Institute of Technology. Research Laboratory of Electronics © 2020 authors. Published by the American Physical Society. We present a joint theoretical and experimental analysis of thermorefractive noise in high-quality-factor (Q), small-mode-volume (V) optical microcavities. Analogous to well-studied stability limits imposed by Brownian motion in macroscopic Fabry-Perot resonators, we show that microcavity thermorefractive noise gives rise to a mode-volume-dependent maximum effective quality factor. State-of-The-Art fabricated microcavities are found to be within one order of magnitude of this bound. By measuring the first thermodynamically limited frequency noise spectra of wavelength-scale high-Q/V silicon photonic crystal cavities, we confirm the assumptions of our theory, demonstrate a broadband sub-μK/Hz temperature sensitivity, and unveil a new technique for discerning subwavelength changes in microcavity mode volumes. To illustrate the immediate implications of these results, we show that thermorefractive noise limits the optimal performance of recently proposed room-Temperature, all-optical qubits using cavity-enhanced bulk material nonlinearities. Looking forward, we propose and analyze coherent thermo-optic noise cancellation as one potential avenue toward violating these bounds, thereby enabling continued development in quantum optical measurement, precision sensing, and low-noise integrated photonics. 2022-06-22T15:51:54Z 2022-06-22T15:51:54Z 2020 2022-06-22T15:48:20Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/143530 Panuski, Christopher, Englund, Dirk and Hamerly, Ryan. 2020. "Fundamental Thermal Noise Limits for Optical Microcavities." Physical Review X, 10 (4). en 10.1103/PHYSREVX.10.041046 Physical Review X Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf American Physical Society (APS) APS |
| spellingShingle | Panuski, Christopher Englund, Dirk Hamerly, Ryan Fundamental Thermal Noise Limits for Optical Microcavities |
| title | Fundamental Thermal Noise Limits for Optical Microcavities |
| title_full | Fundamental Thermal Noise Limits for Optical Microcavities |
| title_fullStr | Fundamental Thermal Noise Limits for Optical Microcavities |
| title_full_unstemmed | Fundamental Thermal Noise Limits for Optical Microcavities |
| title_short | Fundamental Thermal Noise Limits for Optical Microcavities |
| title_sort | fundamental thermal noise limits for optical microcavities |
| url | https://hdl.handle.net/1721.1/143530 |
| work_keys_str_mv | AT panuskichristopher fundamentalthermalnoiselimitsforopticalmicrocavities AT englunddirk fundamentalthermalnoiselimitsforopticalmicrocavities AT hamerlyryan fundamentalthermalnoiselimitsforopticalmicrocavities |