Propagation of optical vortices in loop resonators on the basis of multimode optical fibers
| Autor: | Boris Lapin, Maxim A. Yavorsky, C N Alexeyev, E. V. Barshak, D. V. Vikulin |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Angular momentum Multi-mode optical fiber Optical fiber business.industry 020206 networking & telecommunications 02 engineering and technology Dichroism law.invention Resonator Wavelength Optics law 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing business Optical vortex Topological quantum number |
| Zdroj: | 2020 International Conference on Information Technology and Nanotechnology (ITNT). |
| Popis: | In this paper we theoretically study the propagation of optical vortices (OVs) through a loop resonator (LR) on a multimode optical fiber. We demonstrate the presence in LRs of a resonance, which is in the inversion of the topological charge (TC) of the transmitted OV. We show that in the outcoming field the weights of the OVs with opposite TCs may be sensitive to wavelength variations of the LR’s length. Near the resonance points this property can be used for super-efficient control over the TC and orbital angular momentum of the outcoming field. We discuss application of this effect for temperature sensing. We also demonstrate the resonance power spikes in the loop and show that the resonance loop fields are the Hermite-Gaussian modes. In addition, we study the spectral characteristics of OV transmission and show feasibility of LR-based comb filters and delay lines for OVs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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