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Updated: Sep 9, 2025
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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
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Whispering gallery vortex modes of Möbius fiber ring resonators
Optics Letters
|August 29, 2025
Summary
Researchers studied whispering gallery modes (WGMs) in a twisted fiber ring resonator, creating a Möbius ring resonator (MRR). This system generates optical vortices (OVs) with orbital angular momentum (OAM).
Area of Science:
- Optics and Photonics
- Condensed Matter Physics
- Fiber Optics
Background:
- Whispering gallery modes (WGMs) are fundamental to optical resonators.
- Fiber optic systems offer unique topological possibilities.
- Orbital angular momentum (OAM) is a key property of light.
Purpose of the Study:
- To investigate WGMs in a novel Möbius ring resonator (MRR).
- To demonstrate the generation of optical vortices (OVs) with OAM.
- To explore the topological properties of twisted fiber resonators.
Main Methods:
- Fabrication of a highly elliptical two-mode fiber ring resonator.
- Imparting a twist to the fiber to create a Möbius topology.
- Theoretical analysis of WGM properties and resonance conditions.
Main Results:
- WGMs in the MRR intrinsically carry orbital angular momentum (OAM).
- Specific resonance conditions yield WGMs as optical vortices (OVs) with unit modulus OAM.
- The MRR system is capable of generating OVs.
Conclusions:
- Möbius ring resonators offer a new platform for OAM manipulation.
- Twisted fiber topology enables the generation of OAM-carrying optical vortices.
- This research opens avenues for novel photonic devices.
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