High Q-factor reconfigurable microresonators induced in side-coupled optical fibres
Abstract High Q-factor monolithic optical microresonators found numerous applications in classical and quantum optical signal processing, microwave photonics, ultraprecise sensing, as well as fundamental optical and physical sciences. However, due to the solid structure of these microresonators, att...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2023-08-01
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| Series: | Light: Science & Applications |
| Online Access: | https://doi.org/10.1038/s41377-023-01247-7 |
| _version_ | 1797556319441387520 |
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| author | Victor Vassiliev Michael Sumetsky |
| author_facet | Victor Vassiliev Michael Sumetsky |
| author_sort | Victor Vassiliev |
| collection | DOAJ |
| description | Abstract High Q-factor monolithic optical microresonators found numerous applications in classical and quantum optical signal processing, microwave photonics, ultraprecise sensing, as well as fundamental optical and physical sciences. However, due to the solid structure of these microresonators, attaining the free spectral range tunability of most of them, critical for several of these applications, was, so far, unfeasible. To address this problem, here we experimentally demonstrate that the side-coupling of coplanar bent optical fibres can induce a high Q-factor whispering gallery mode optical microresonator. By changing the curvature radius of fibres from the centimetre order to the millimetre order, we demonstrate fully mechanically reconfigurable optical microresonators with dimensions varying from the millimetre order to 100-micron order and free spectral range varying from a picometre to ten picometre order. The developed theory describes the formation of the discovered microresonators and their major properties in a reasonable agreement with the experimental data. The new microresonators may find applications in cavity QED, microresonator optomechanics, frequency comb generation with tuneable repetition rate, tuneable lasing, and tuneable processing and delay of optical pulses. |
| first_indexed | 2024-03-10T17:01:09Z |
| format | Article |
| id | doaj.art-adc8f1ef49544aa1bc7f89d5e04a1786 |
| institution | Directory Open Access Journal |
| issn | 2047-7538 |
| language | English |
| last_indexed | 2024-03-10T17:01:09Z |
| publishDate | 2023-08-01 |
| publisher | Nature Publishing Group |
| record_format | Article |
| series | Light: Science & Applications |
| spelling | doaj.art-adc8f1ef49544aa1bc7f89d5e04a17862023-11-20T10:58:33ZengNature Publishing GroupLight: Science & Applications2047-75382023-08-0112111010.1038/s41377-023-01247-7High Q-factor reconfigurable microresonators induced in side-coupled optical fibresVictor Vassiliev0Michael Sumetsky1Aston Institute of Photonic Technologies, Aston UniversityAston Institute of Photonic Technologies, Aston UniversityAbstract High Q-factor monolithic optical microresonators found numerous applications in classical and quantum optical signal processing, microwave photonics, ultraprecise sensing, as well as fundamental optical and physical sciences. However, due to the solid structure of these microresonators, attaining the free spectral range tunability of most of them, critical for several of these applications, was, so far, unfeasible. To address this problem, here we experimentally demonstrate that the side-coupling of coplanar bent optical fibres can induce a high Q-factor whispering gallery mode optical microresonator. By changing the curvature radius of fibres from the centimetre order to the millimetre order, we demonstrate fully mechanically reconfigurable optical microresonators with dimensions varying from the millimetre order to 100-micron order and free spectral range varying from a picometre to ten picometre order. The developed theory describes the formation of the discovered microresonators and their major properties in a reasonable agreement with the experimental data. The new microresonators may find applications in cavity QED, microresonator optomechanics, frequency comb generation with tuneable repetition rate, tuneable lasing, and tuneable processing and delay of optical pulses.https://doi.org/10.1038/s41377-023-01247-7 |
| spellingShingle | Victor Vassiliev Michael Sumetsky High Q-factor reconfigurable microresonators induced in side-coupled optical fibres Light: Science & Applications |
| title | High Q-factor reconfigurable microresonators induced in side-coupled optical fibres |
| title_full | High Q-factor reconfigurable microresonators induced in side-coupled optical fibres |
| title_fullStr | High Q-factor reconfigurable microresonators induced in side-coupled optical fibres |
| title_full_unstemmed | High Q-factor reconfigurable microresonators induced in side-coupled optical fibres |
| title_short | High Q-factor reconfigurable microresonators induced in side-coupled optical fibres |
| title_sort | high q factor reconfigurable microresonators induced in side coupled optical fibres |
| url | https://doi.org/10.1038/s41377-023-01247-7 |
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