High Q-factor reconfigurable microresonators induced in side-coupled optical fibres.

ABSTRACT: High Q-factor monolithic optical microresonators found numerous applications in classical and quantum optical signal processing, microwave photonics, ultraprecise sensing, as well as fundamental optical and physical sciences. However, due to the solid structure of these microresonators, attaining the free spectral range tunability of most of them, critical for several of these applications, was, so far, unfeasible. To address this problem, here we experimentally demonstrate that the side-coupling of coplanar bent optical fibres can induce a high Q-factor whispering gallery mode optical microresonator. By changing the curvature radius of fibres from the centimetre order to the millimetre order, we demonstrate fully mechanically reconfigurable optical microresonators with dimensions varying

SUBMITTER: Vassiliev V 

PROVIDER: S-EPMC10439148 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature