Cascaded injection locking of optomechanical crystal oscillators
Optomechanical oscillators stand out as high-performance and versatile candidates for serving as reference clocks in sequential photonic integrated circuits. Indeed, they have the unique capability of simultaneously generating mechanical tones and optical signal modulations at frequencies determined...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2024-11-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0224104 |
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| _version_ | 1846141124235755520 |
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| author | David Alonso-Tomás Guillermo Arregui Laura Mercadé Alejandro Martínez Amadeu Griol Néstor E. Capuj Daniel Navarro-Urrios |
| author_facet | David Alonso-Tomás Guillermo Arregui Laura Mercadé Alejandro Martínez Amadeu Griol Néstor E. Capuj Daniel Navarro-Urrios |
| author_sort | David Alonso-Tomás |
| collection | DOAJ |
| description | Optomechanical oscillators stand out as high-performance and versatile candidates for serving as reference clocks in sequential photonic integrated circuits. Indeed, they have the unique capability of simultaneously generating mechanical tones and optical signal modulations at frequencies determined by their geometrical design. In this context, the concept of synchronization introduces a powerful means to precisely coordinate the dynamics of multiple oscillators in a controlled manner, therefore increasing efficiency and preventing errors in signal processing photonic systems or communication interfaces. In this work, we demonstrate the cascaded injection locking of a pair of silicon-based optomechanical crystal cavities acting as optomechanical oscillators to an external reference signal that subtly modulates the laser driving only one of them. In contrast to most previous implementations, both cavities support isolated optical resonances and interact by a weak mechanical interconnection. This configuration allows one cavity to be used for probing the mechanical perturbation generated by the oscillator that receives the external forcing. The combination of the obtained results, supported by a numerical model, with remote optical injection locking schemes discussed in the literature lays the groundwork for the distribution of reference signals within large networks of processing elements in future phonon–photon hybrid circuits. |
| format | Article |
| id | doaj-art-2499b6a8cc584f9ba70a7e6408452b10 |
| institution | Kabale University |
| issn | 2378-0967 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj-art-2499b6a8cc584f9ba70a7e6408452b102024-12-04T17:05:05ZengAIP Publishing LLCAPL Photonics2378-09672024-11-01911116108116108-810.1063/5.0224104Cascaded injection locking of optomechanical crystal oscillatorsDavid Alonso-Tomás0Guillermo Arregui1Laura Mercadé2Alejandro Martínez3Amadeu Griol4Néstor E. Capuj5Daniel Navarro-Urrios6MINDIN2UB, Departament d’Enginyeria Electrónica i Biomédica, Facultat de Física, Universitat de Barcelona, Martí i Franquès 1, Barcelona 08028, SpainDTU Electro, Department of Electrical and Photonics Engineering, Technical University of Denmark, Ørsteds Plads 343, Kongens Lyngby DK-2800, DenmarkNanophotonics Technology Center, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, SpainNanophotonics Technology Center, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, SpainNanophotonics Technology Center, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, SpainDepto. Física, Universidad de La Laguna, 38200 San Cristóbal de La Laguna, SpainMINDIN2UB, Departament d’Enginyeria Electrónica i Biomédica, Facultat de Física, Universitat de Barcelona, Martí i Franquès 1, Barcelona 08028, SpainOptomechanical oscillators stand out as high-performance and versatile candidates for serving as reference clocks in sequential photonic integrated circuits. Indeed, they have the unique capability of simultaneously generating mechanical tones and optical signal modulations at frequencies determined by their geometrical design. In this context, the concept of synchronization introduces a powerful means to precisely coordinate the dynamics of multiple oscillators in a controlled manner, therefore increasing efficiency and preventing errors in signal processing photonic systems or communication interfaces. In this work, we demonstrate the cascaded injection locking of a pair of silicon-based optomechanical crystal cavities acting as optomechanical oscillators to an external reference signal that subtly modulates the laser driving only one of them. In contrast to most previous implementations, both cavities support isolated optical resonances and interact by a weak mechanical interconnection. This configuration allows one cavity to be used for probing the mechanical perturbation generated by the oscillator that receives the external forcing. The combination of the obtained results, supported by a numerical model, with remote optical injection locking schemes discussed in the literature lays the groundwork for the distribution of reference signals within large networks of processing elements in future phonon–photon hybrid circuits.http://dx.doi.org/10.1063/5.0224104 |
| spellingShingle | David Alonso-Tomás Guillermo Arregui Laura Mercadé Alejandro Martínez Amadeu Griol Néstor E. Capuj Daniel Navarro-Urrios Cascaded injection locking of optomechanical crystal oscillators APL Photonics |
| title | Cascaded injection locking of optomechanical crystal oscillators |
| title_full | Cascaded injection locking of optomechanical crystal oscillators |
| title_fullStr | Cascaded injection locking of optomechanical crystal oscillators |
| title_full_unstemmed | Cascaded injection locking of optomechanical crystal oscillators |
| title_short | Cascaded injection locking of optomechanical crystal oscillators |
| title_sort | cascaded injection locking of optomechanical crystal oscillators |
| url | http://dx.doi.org/10.1063/5.0224104 |
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