Optical Mode Characterization Using a VNA Phase and Amplitude Measurement Scheme at 104 GHz

International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), pp. 1–2

Abstract

We have developed a modal framework [1], which uses the notion of optical modes, i.e. an unique set of individually coherent orthogonal field distributions, to propagate an incident electric field through an optical system. The framework relies on a transmission matrix and Singular Value Decomposition (SVD), to obtained the mode characteristics: their transmission efficiencies and spatial forms over the input and output surface of the optical system. Here, we present a VNA phase and amplitude measurement scheme used for determining the transmission matrix, and we compare the obtained mode characteristics to our model for a pair of limiting slits at 104 GHz, which show good agreement.

Authors 4

1. Bram Lap Aachen SRON Groningen

   University of Groningen · Space Research Organisation Netherlands

   Affiliation as printed

   SRON Groningen,The Netherlands,9747 AD

   University of Groningen, The Netherlands

2. W. Jellema Aachen SRON Groningen

   University of Groningen · Space Research Organisation Netherlands

   Affiliation as printed

   SRON Groningen,The Netherlands,9747 AD

   University of Groningen, The Netherlands

3. S. Withington

   University of Cambridge

   Affiliation as printed

   Cavendish laboratory,Cambridge,UK,CB3OHE

4. David A. Naylor

   University of Lethbridge

   Affiliation as printed

   University of Lethbridge,Lethbridge,Canada,T1K 3M4