Thermo-optomechanically induced optical frequency comb in a whispering-gallery-mode resonator

Xu, Yifan; Chen, Hongyun; Zhang, Hui; Zheng, Anshou; Zhang, Guangyong

doi:10.1364/oe.497867

Cited by 4 publications

References 61 publications

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Elastomeric Cavity Opto‐Mechanics: Low‐Power Soliton Frequency Combs

Rahmanian,

Mouharrar,

Alibakhshi

et al. 2024

Advanced Optical Materials

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An innovative, previously unexplored approach that leverages elastomeric membranes (EM) to develop a highly deformable cavity optomechanical resonator is proposed. This resonator generates multi soliton frequency combs (FCs) with low power consumption, a phenomenon of great interest in the realm of nonlinear light‐matter interactions. This approach marks a breakthrough due to its streamlined simplicity, utilizing a single continuous‐wave (CW) laser pump and an external acoustic wave. Matching the acoustic wave frequency with natural frequencies of the EM resonator accompanied by mechanical Kerr nonlinearities and dispersion give rise to the formation of mechanical FCs. The hyperelastic mechanical resonator and electromagnetic cavity resonance are parametrically coupled within the microwave frequency range, catalyzing the generation of mechanical FCs and their seamless transformation into optomechanical solitons within the optical domain with remarkable efficiency. Achieving stable pulse trains with a free spectral range ranging from 2 to 9 kHz using a few millimeter‐sized cavity by supplying 2 to 4 mW pump power marks a pivotal advancement in chip‐scale optomechanical resonators. This breakthrough holds transformative potential in domains such as quantum computing and spectroscopy. This method is fundamental to the creation of a mechanical Kerr medium, effectively bypassing the reliance on high mechanical quality‐factors.

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Elastomeric Cavity Opto‐Mechanics: Low‐Power Soliton Frequency Combs

Rahmanian,

Mouharrar,

Alibakhshi

et al. 2024

Advanced Optical Materials

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Photothermally and optomechanically induced transparency in a hybrid optomechanical system

Hu,

Gao,

Guan

et al. 2024

Int J of Quantum Chemistry

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We theoretically investigated the photothermally and optomechanically induced transparency (PTIT and OMIT) in an optomechanical system filled with quantum dots (QDs). In our proposed system, the right mechanical resonator couples with the optical cavity via radiation pressure, and the left mechanical resonator couples with the optical cavity through the photothermal effects. The system is driven by a strong pump field and a weak probe field. It is shown that double transparency windows can be observed due to PTIT and OMIT. When considering the Jaynes‐Cummings coupling between the QDs and the optical cavity, three transparency windows are observed. We also show that the PTIT can be adjusted by the OMIT and the QDs in the optical cavity. What is more, the coupling strength and the frequency detuning can be used effectively to change the system absorption and dispersion in the PITT transparency window. This indicates that the group delay of the probe light can also be manipulated by the system parameters. The obtained results may be applied in the optical communication such as optical buffer, and so forth.

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