Generation of multiple obstruction-free channels for free space optical communication
Abstract
Multi-filament structures produced by vortical high-power femtosecond pulses propagating through clouds and fog can simultaneously clear two channels with cylindrical and annular profile. We present a method to achieve Free Space Optical (FSO) communications through such highly scattering media by propagating appropriately shaped laser modes through these channels. As a proof of concept, we implemented a Laguerre-Gaussian beam as information signal carrier to demonstrate transmission of 543-nm CW laser beam through a 1-m long cloud chamber using both channels. The low power of the information signal in this experiment allows considering applications in Earth–satellite FSO communication.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 12, 2023
- Source ID
- 10.1364/oe.477204
Entities
People
- Igor Jovanovic
- Megan L. Burger
- Moussa N’Gom
- Pascal Bassène
- Saad Bin Ali Reza
- T. Nutting
Organizations
- Defense Threat Reduction Agency
- National Geospatial-Intelligence Agency
- National Nuclear Security Administration
- Rensselaer Polytechnic Institute
- University of Michigan