Active optical clock lasing on the Cs 7S1/2-6P3/2 transition under a weak magnetic field
In the bad-cavity limit, the collective atomic dipole is highly coherent, resulting in the phase information of an active optical clock (AOC) laser primarily stored in the atomic gain medium. Therefore, compared with the good-cavity laser, the sensitivity of an AOC laser to cavity fluctuations is gr...
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| Format: | Article |
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Frontiers Media S.A.
2022-08-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2022.967255/full |
| _version_ | 1818056392456536064 |
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| author | Tiantian Shi Jianxiang Miao Jia Zhang Jingbiao Chen Jingbiao Chen |
| author_facet | Tiantian Shi Jianxiang Miao Jia Zhang Jingbiao Chen Jingbiao Chen |
| author_sort | Tiantian Shi |
| collection | DOAJ |
| description | In the bad-cavity limit, the collective atomic dipole is highly coherent, resulting in the phase information of an active optical clock (AOC) laser primarily stored in the atomic gain medium. Therefore, compared with the good-cavity laser, the sensitivity of an AOC laser to cavity fluctuations is greatly reduced, as characterized by the suppressed cavity-pulling effect. In this work, the AOC lasing on the cesium 7S1/2-6P3/2 clock transition with a natural linewidth of 1.81 MHz under a weak magnetic field is achieved. We calculate the Zeeman spectra of upper and lower states of clock transition, and measure the beat-note spectrum between different Zeeman-sublevel transitions of 7S1/2-6P3/2. Moreover, the cavity-pulling, temperature, power, and linewidth characteristics of the AOC laser are demonstrated under a weak magnetic field. Such an emerging laser can be applied as a narrow-linewidth local oscillator, as well as an active optical frequency standard, which is promising for the field of precision measurement. |
| first_indexed | 2024-12-10T12:28:07Z |
| format | Article |
| id | doaj.art-e1e0c2b8041c4527b7f33ae90732e371 |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-12-10T12:28:07Z |
| publishDate | 2022-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-e1e0c2b8041c4527b7f33ae90732e3712022-12-22T01:48:55ZengFrontiers Media S.A.Frontiers in Physics2296-424X2022-08-011010.3389/fphy.2022.967255967255Active optical clock lasing on the Cs 7S1/2-6P3/2 transition under a weak magnetic fieldTiantian Shi0Jianxiang Miao1Jia Zhang2Jingbiao Chen3Jingbiao Chen4State Key Laboratory of Advanced Optical Communication Systems and Networks, Institute of Quantum Electronics, School of Electronics, Peking University, Beijing, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Institute of Quantum Electronics, School of Electronics, Peking University, Beijing, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Institute of Quantum Electronics, School of Electronics, Peking University, Beijing, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Institute of Quantum Electronics, School of Electronics, Peking University, Beijing, ChinaHefei National Laboratory, Hefei, ChinaIn the bad-cavity limit, the collective atomic dipole is highly coherent, resulting in the phase information of an active optical clock (AOC) laser primarily stored in the atomic gain medium. Therefore, compared with the good-cavity laser, the sensitivity of an AOC laser to cavity fluctuations is greatly reduced, as characterized by the suppressed cavity-pulling effect. In this work, the AOC lasing on the cesium 7S1/2-6P3/2 clock transition with a natural linewidth of 1.81 MHz under a weak magnetic field is achieved. We calculate the Zeeman spectra of upper and lower states of clock transition, and measure the beat-note spectrum between different Zeeman-sublevel transitions of 7S1/2-6P3/2. Moreover, the cavity-pulling, temperature, power, and linewidth characteristics of the AOC laser are demonstrated under a weak magnetic field. Such an emerging laser can be applied as a narrow-linewidth local oscillator, as well as an active optical frequency standard, which is promising for the field of precision measurement.https://www.frontiersin.org/articles/10.3389/fphy.2022.967255/fullbad-cavity limitsuppressed cavity-pulling effectquantum-limited linewidthZeeman effectbeat-note spectrumactive optical frequency standard |
| spellingShingle | Tiantian Shi Jianxiang Miao Jia Zhang Jingbiao Chen Jingbiao Chen Active optical clock lasing on the Cs 7S1/2-6P3/2 transition under a weak magnetic field Frontiers in Physics bad-cavity limit suppressed cavity-pulling effect quantum-limited linewidth Zeeman effect beat-note spectrum active optical frequency standard |
| title | Active optical clock lasing on the Cs 7S1/2-6P3/2 transition under a weak magnetic field |
| title_full | Active optical clock lasing on the Cs 7S1/2-6P3/2 transition under a weak magnetic field |
| title_fullStr | Active optical clock lasing on the Cs 7S1/2-6P3/2 transition under a weak magnetic field |
| title_full_unstemmed | Active optical clock lasing on the Cs 7S1/2-6P3/2 transition under a weak magnetic field |
| title_short | Active optical clock lasing on the Cs 7S1/2-6P3/2 transition under a weak magnetic field |
| title_sort | active optical clock lasing on the cs 7s1 2 6p3 2 transition under a weak magnetic field |
| topic | bad-cavity limit suppressed cavity-pulling effect quantum-limited linewidth Zeeman effect beat-note spectrum active optical frequency standard |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2022.967255/full |
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