Injection locking in an optomechanical coherent phonon source
Spontaneous locking of the phase of a coherent phonon source to an external reference is demonstrated in a deeply sideband-unresolved optomechanical system. The high-amplitude mechanical oscillations are driven by the anharmonic modulation of the radiation pressure force that result from an absorpti...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2021-01-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2020-0592 |
| _version_ | 1818580910936686592 |
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| author | Arregui Guillermo Colombano Martín F. Maire Jeremie Pitanti Alessandro Capuj Néstor E. Griol Amadeu Martínez Alejandro Sotomayor-Torres Clivia M. Navarro-Urrios Daniel |
| author_facet | Arregui Guillermo Colombano Martín F. Maire Jeremie Pitanti Alessandro Capuj Néstor E. Griol Amadeu Martínez Alejandro Sotomayor-Torres Clivia M. Navarro-Urrios Daniel |
| author_sort | Arregui Guillermo |
| collection | DOAJ |
| description | Spontaneous locking of the phase of a coherent phonon source to an external reference is demonstrated in a deeply sideband-unresolved optomechanical system. The high-amplitude mechanical oscillations are driven by the anharmonic modulation of the radiation pressure force that result from an absorption-mediated free-carrier/temperature limit cycle, i.e., self-pulsing. Synchronization is observed when the pump laser driving the mechanical oscillator to a self-sustained state is modulated by a radiofrequency tone. We employ a pump-probe phonon detection scheme based on an independent optical cavity to observe only the mechanical oscillator dynamics. The lock range of the oscillation frequency, i.e., the Arnold tongue, is experimentally determined over a range of external reference strengths, evidencing the possibility to tune the oscillator frequency for a range up to 350 kHz. The stability of the coherent phonon source is evaluated via its phase noise, with a maximum achieved suppression of 44 dBc/Hz at 1 kHz offset for a 100 MHz mechanical resonator. Introducing a weak modulation in the excitation laser reveals as a further knob to trigger, control and stabilize the dynamical solutions of self-pulsing based optomechanical oscillators, thus enhancing their potential as acoustic wave sources in a single-layer silicon platform. |
| first_indexed | 2024-12-16T07:25:07Z |
| format | Article |
| id | doaj.art-a163986c3ac246c48f358a9b717b5959 |
| institution | Directory Open Access Journal |
| issn | 2192-8606 2192-8614 |
| language | English |
| last_indexed | 2024-12-16T07:25:07Z |
| publishDate | 2021-01-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-a163986c3ac246c48f358a9b717b59592022-12-21T22:39:32ZengDe GruyterNanophotonics2192-86062192-86142021-01-011041319132710.1515/nanoph-2020-0592Injection locking in an optomechanical coherent phonon sourceArregui Guillermo0Colombano Martín F.1Maire Jeremie2Pitanti Alessandro3Capuj Néstor E.4Griol Amadeu5Martínez Alejandro6Sotomayor-Torres Clivia M.7Navarro-Urrios Daniel8Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193Barcelona, SpainCatalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193Barcelona, SpainCatalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193Barcelona, SpainNEST Lab., CNR - Istituto di Nanoscienze and Scuola Normale Superiore, Piazza San Silvestro 12, 56217Pisa, ItalyDepto. Física, Universidad de La Laguna, 38200San Cristóbal de La Laguna, SpainNanophotonics Technology Center, Universitat Politècnica de Valencia, 46022Valencia, SpainNanophotonics Technology Center, Universitat Politècnica de Valencia, 46022Valencia, SpainCatalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193Barcelona, SpainMIND-IN2UB, Departament d’Enginyeria Electrònica i Biomèdica, Facultat de Física, Universitat de Barcelona, Martí i Franquès 1, 08028Barcelona, SpainSpontaneous locking of the phase of a coherent phonon source to an external reference is demonstrated in a deeply sideband-unresolved optomechanical system. The high-amplitude mechanical oscillations are driven by the anharmonic modulation of the radiation pressure force that result from an absorption-mediated free-carrier/temperature limit cycle, i.e., self-pulsing. Synchronization is observed when the pump laser driving the mechanical oscillator to a self-sustained state is modulated by a radiofrequency tone. We employ a pump-probe phonon detection scheme based on an independent optical cavity to observe only the mechanical oscillator dynamics. The lock range of the oscillation frequency, i.e., the Arnold tongue, is experimentally determined over a range of external reference strengths, evidencing the possibility to tune the oscillator frequency for a range up to 350 kHz. The stability of the coherent phonon source is evaluated via its phase noise, with a maximum achieved suppression of 44 dBc/Hz at 1 kHz offset for a 100 MHz mechanical resonator. Introducing a weak modulation in the excitation laser reveals as a further knob to trigger, control and stabilize the dynamical solutions of self-pulsing based optomechanical oscillators, thus enhancing their potential as acoustic wave sources in a single-layer silicon platform.https://doi.org/10.1515/nanoph-2020-0592injection lockingnonlinear dynamicsoptomechanicsself-sustained oscillator |
| spellingShingle | Arregui Guillermo Colombano Martín F. Maire Jeremie Pitanti Alessandro Capuj Néstor E. Griol Amadeu Martínez Alejandro Sotomayor-Torres Clivia M. Navarro-Urrios Daniel Injection locking in an optomechanical coherent phonon source Nanophotonics injection locking nonlinear dynamics optomechanics self-sustained oscillator |
| title | Injection locking in an optomechanical coherent phonon source |
| title_full | Injection locking in an optomechanical coherent phonon source |
| title_fullStr | Injection locking in an optomechanical coherent phonon source |
| title_full_unstemmed | Injection locking in an optomechanical coherent phonon source |
| title_short | Injection locking in an optomechanical coherent phonon source |
| title_sort | injection locking in an optomechanical coherent phonon source |
| topic | injection locking nonlinear dynamics optomechanics self-sustained oscillator |
| url | https://doi.org/10.1515/nanoph-2020-0592 |
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