Demonstration of orbital angular momentum channel healing using a Fabry-Pérot cavity
Journal Title: Opto-Electronic Advances - Year 2018, Vol 1, Issue 5
Abstract
Orbital angular momentum (OAM) mode division provides a promising solution to push past the already exhausted available degrees of freedom available in conventional optical communications. Nevertheless, the practical deployment of OAM within a free-space optical (FSO) communications system is still hampered by a major challenge, namely that OAM-based FSO links are vulnerable to disturbances. Though several techniques, such as using various non-diffraction beams and multiple transmit–receive apertures, are proposed to alleviate the influence of disturbances, these techniques significantly reduce the performance with regard to combating single fading for spatial blockages of the laser beam by obstructions. In this work, we initially demonstrate that a Fabry-Pérot resonant cavity has the ability to implement OAM mode healing, even for a blocking percentage of over 50%. Consequently, the proposed method will expand the use of OAM in the FSO secure communications and quantum encryption fields.
Authors and Affiliations
Shibiao Wei, Dapeng Wang, Jiao Lin*, Xiaocong Yuan*
Keywords
Related Articles
- EP ID EP683086
- DOI 10.29026/oea.2018.180006
- Views 242
- Downloads 0
Multifunctional inverse sensing by spatial distribution characterization of scattering photons
Inverse sensing is an important research direction to provide new perspectives for optical sensing. For inverse sensing, the primary challenge is that scattered photon has a complicated profile, which is hard to derive a...
Imaging the crystal orientation of 2D transition metal dichalcogenides using polarization-resolved second-harmonic generation
We use laser-scanning nonlinear imaging microscopy in atomically thin transition metal dichalcogenides (TMDs) to reveal information on the crystalline orientation distribution, within the 2D lattice. In particular, we pe...
Probing defects in ZnO by persistent phosphorescence
Native point defects in ZnO are so complicated that most of them are still debating issues, although they have been studied for decades. In this paper, we experimentally reveal two sub-components usually hidden in the lo...
Recent development of flat supercontinuum generation in specialty optical fibers
Supercontinuum (SC) generation has attracted a significant scientific interest in the past decades due to its promising applications covering the fields of metrology, spectroscopy, defense, as well as medical treatments....
Ultrasensitive skin-like wearable optical sensors based on glass micro/nanofibers
Electronic skin, a class of wearable electronic sensors that mimic the functionalities of human skin, has made remarkable success in applications including health monitoring, human-machine interaction and electronic-biol...