期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 41, 期 10, 页码 3139-3144出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2023.3237696
关键词
Resonators; Microcavities; Optical fibers; Shape; Q-factor; Software; Optical fiber sensors; Q factor; Saddle shape; Silica microresonators; Whispering Gallery Modes
Optical Whispering Gallery Mode (WGM) resonators are highly sensitive sensors and ideal for nonlinear interactions. A new type of WGM resonator called Saddle-Shape Microresonator (SSM) is demonstrated, which offers unique modal properties and structural stability. SSMs show great potential in strain-based sensing, cavity quantum electrodynamics, and real-life applications requiring mechanical tunability.
Optical Whispering Gallery Mode (WGM) resonators are an ideal platform for highly sensitive sensors and nonlinear interactions. They exhibit extremely high quality (Q) factors, providing a sensing platform with low detection limit to environmental changes and optical confinement for low threshold nonlinear stimulation. Here we demonstrate a new type of WGM resonator we coin as a Saddle-Shape Microresonator (SSM). The unique modal properties of the SSM's WGMs significantly differs them from spheres, disks, toroids, and other well-known microresonator types. We show that the SSM offers, in addition to the many attractive attributes that are found in fiber-tip sphere microresonators, the added characteristic of structural stability of a taper coupled resonator. The combination of these traits make it ideal for strain-based sensing, cavity quantum electrodynamics, and for real life applications in which mechanical tunability of the microresonator's WGMs is essential. The distinctive structure of SSMs - allowing exceptional high mechanical stability as well as mechanical tunability - opens a route to manufacture miniature packaged fiber-coupled WGM microresonators-based devices.
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