Diffraction of optical communication Gaussian beams by volume gratings: comparison of simulations and experimental results.
The diffraction effects induced by a thick holographic grating on the propagation of a finite Gaussian beam are theoretically analyzed by means of the coupled-wave theory and the beam propagation method. Distortion of the transmitted and diffracted beams is simulated as a function of the grating parameters. Theoretical results are verified by experimentation realized by use of LiNbO3 volume gratings read out by a 1550-nm Gaussian beam, typical of optical fiber communications. This analysis can be implemented as a useful tool to aid with the design of volume grating-based devices employed in optical communications.
Boffi
Pierpaolo
P
Consortium for Research in Optical Processing and Switching, Via G. Colombo 81, Milan 20133, Italy. boffi@corecom.it
Osmond
Johann
J
Piccinin
Davide
D
Ubaldi
Maria Chiara
MC
Martinelli
Mario
M