Integrated quantum optical phase sensor in thin film lithium niobate
Abstract The quantum noise of light, attributed to the random arrival time of photons from a coherent light source, fundamentally limits optical phase sensors. An engineered source of squeezed states suppresses this noise and allows phase detection sensitivity beyond the quantum noise limit (QNL). W...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-06-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-38246-6 |
| _version_ | 1797806583290265600 |
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| author | Hubert S. Stokowski Timothy P. McKenna Taewon Park Alexander Y. Hwang Devin J. Dean Oguz Tolga Celik Vahid Ansari Martin M. Fejer Amir H. Safavi-Naeini |
| author_facet | Hubert S. Stokowski Timothy P. McKenna Taewon Park Alexander Y. Hwang Devin J. Dean Oguz Tolga Celik Vahid Ansari Martin M. Fejer Amir H. Safavi-Naeini |
| author_sort | Hubert S. Stokowski |
| collection | DOAJ |
| description | Abstract The quantum noise of light, attributed to the random arrival time of photons from a coherent light source, fundamentally limits optical phase sensors. An engineered source of squeezed states suppresses this noise and allows phase detection sensitivity beyond the quantum noise limit (QNL). We need ways to use quantum light within deployable quantum sensors. Here we present a photonic integrated circuit in thin-film lithium niobate that meets these requirements. We use the second-order nonlinearity to produce a squeezed state at the same frequency as the pump light and realize circuit control and sensing with electro-optics. Using 26.2 milliwatts of optical power, we measure (2.7 ± 0.2)% squeezing and apply it to increase the signal-to-noise ratio of phase measurement. We anticipate that photonic systems like this, which operate with low power and integrate all of the needed functionality on a single die, will open new opportunities for quantum optical sensing. |
| first_indexed | 2024-03-13T06:09:27Z |
| format | Article |
| id | doaj.art-831705dbc7664b9bb42fa2d617335ebe |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-13T06:09:27Z |
| publishDate | 2023-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-831705dbc7664b9bb42fa2d617335ebe2023-06-11T11:19:46ZengNature PortfolioNature Communications2041-17232023-06-0114111110.1038/s41467-023-38246-6Integrated quantum optical phase sensor in thin film lithium niobateHubert S. Stokowski0Timothy P. McKenna1Taewon Park2Alexander Y. Hwang3Devin J. Dean4Oguz Tolga Celik5Vahid Ansari6Martin M. Fejer7Amir H. Safavi-Naeini8Department of Applied Physics and Ginzton Laboratory, Stanford UniversityPhysics & Informatics Laboratories, NTT Research, Inc.Department of Applied Physics and Ginzton Laboratory, Stanford UniversityDepartment of Applied Physics and Ginzton Laboratory, Stanford UniversityDepartment of Applied Physics and Ginzton Laboratory, Stanford UniversityDepartment of Applied Physics and Ginzton Laboratory, Stanford UniversityDepartment of Applied Physics and Ginzton Laboratory, Stanford UniversityDepartment of Applied Physics and Ginzton Laboratory, Stanford UniversityDepartment of Applied Physics and Ginzton Laboratory, Stanford UniversityAbstract The quantum noise of light, attributed to the random arrival time of photons from a coherent light source, fundamentally limits optical phase sensors. An engineered source of squeezed states suppresses this noise and allows phase detection sensitivity beyond the quantum noise limit (QNL). We need ways to use quantum light within deployable quantum sensors. Here we present a photonic integrated circuit in thin-film lithium niobate that meets these requirements. We use the second-order nonlinearity to produce a squeezed state at the same frequency as the pump light and realize circuit control and sensing with electro-optics. Using 26.2 milliwatts of optical power, we measure (2.7 ± 0.2)% squeezing and apply it to increase the signal-to-noise ratio of phase measurement. We anticipate that photonic systems like this, which operate with low power and integrate all of the needed functionality on a single die, will open new opportunities for quantum optical sensing.https://doi.org/10.1038/s41467-023-38246-6 |
| spellingShingle | Hubert S. Stokowski Timothy P. McKenna Taewon Park Alexander Y. Hwang Devin J. Dean Oguz Tolga Celik Vahid Ansari Martin M. Fejer Amir H. Safavi-Naeini Integrated quantum optical phase sensor in thin film lithium niobate Nature Communications |
| title | Integrated quantum optical phase sensor in thin film lithium niobate |
| title_full | Integrated quantum optical phase sensor in thin film lithium niobate |
| title_fullStr | Integrated quantum optical phase sensor in thin film lithium niobate |
| title_full_unstemmed | Integrated quantum optical phase sensor in thin film lithium niobate |
| title_short | Integrated quantum optical phase sensor in thin film lithium niobate |
| title_sort | integrated quantum optical phase sensor in thin film lithium niobate |
| url | https://doi.org/10.1038/s41467-023-38246-6 |
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