Paper 13355-69
Paper 13355-69
Coupling efficiency of Laguerre-Gaussian modal receivers in atmospheric turbulence with partial adaptive optics correction
Moscone South, Room 208 (Level 2)
Abstract
For free-space optical communications through the atmosphere there is a trade-off to be explored between the "correct many modes" approach of adaptive optics and the "detect many modes" approach of modal diversity receivers. We present a numerical analysis of modal coupling into the Laguerre-Gaussian (LG) basis for an optical signal through varying strengths of Kolmogorov turbulence after different orders of adaptive optics phase correction. Mapping the LG mode coupling efficiency under different orders of Zernike correction shows concentration in the zero azimuthal modes, informing system trade-offs of which spatial modes to emphasize in the receiver.
Presenter
Michael T. Taylor
McMaster Univ. (Canada), Honeywell Aerospace (Canada)
Dr. Taylor completed his PhD in ground-to-satellite optical links from Stanford University in 2020, after which he returned to Canada for a postdoc at McMaster University working on atmospheric turbulence mitigation techniques under the High-Throughput Secure Networks program. Since 2021 he has been with Honeywell working on intersatellite link terminals and ground stations for both optical communications and quantum key distribution.