Journal article
Fresnel diffraction effects in Fourier-transform arrayed waveguide grating spectrometer.
Abstract
We present an analysis of Fourier-transform arrayed waveguide gratings in the Fresnel diffraction regime. We report a distinct spatial modulation of the interference pattern referred to as the Moiré-Talbot effect. The effect and its influence in a FT AWG device is explained by deriving an original analytical expression for the modulated field, and is also confirmed by numerical simulations using the angular spectrum method to solve the Fresnel …
Authors
Rodrigo JA; Cheben P; Alieva T; Calvo ML; Florjanczyk M; Janz S; Scott A; Solheim B; Xu DX; Deláge A
Journal
Optics Express, Vol. 15, No. 25, pp. 16431–16441
Publisher
Optica Publishing Group
Publication Date
2007
DOI
10.1364/oe.15.016431
ISSN
1094-4087