Intermodulation of optical frequency combs in a multimode optomechanical system

Phonons offer the possibility to connect the microwave and optical domains while being efficiently transduced with electronic and optical signals. Here, we present a multimodal optomechanical platform, consisting of a mechanical-optical-mechanical resonator configuration. The mechanical modes, with...

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Bibliographic Details
Published in:arXiv.org 2023-03
Main Authors: Ng, Ryan C, Nizet, Paul, Navarro-Urrios, Daniel, Arregui, Guillermo, Albrechtsen, Marcus, García, Pedro D, Stobbe, Søren, Sotomayor-Torres, Clivia M, Madiot, Guilhem
Format: Article
Language:English
Subjects:
Lasing
Optical communication
Phonons
Signal processing
Stability analysis
Online Access:Get full text
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Summary:Phonons offer the possibility to connect the microwave and optical domains while being efficiently transduced with electronic and optical signals. Here, we present a multimodal optomechanical platform, consisting of a mechanical-optical-mechanical resonator configuration. The mechanical modes, with frequencies at 265 MHz and 6.8 GHz, can be simultaneously excited into a phonon lasing regime as supported by a stability analysis of the system. Both the MHz and the GHz modes enter a self-sustained oscillation regime, leading to the intermodulation of two frequency combs in the optical field. We characterize this platform experimentally, demonstrating previously unexplored dynamical regimes. These results suggest the possibility to control multiple mechanical degrees of freedom via a single optical mode, with implications in GHz phononic devices, signal processing, and optical comb sensing applications.
ISSN:2331-8422