Compensation of the wavelength dependence in diffractive star couplers

Journal article


Publication Details

Author(s): Lindlein N
Journal: Journal of the Optical Society of America A-Optics Image Science and Vision
Publication year: 1995
Volume: 12
Pages range: 1290-1297
ISSN: 0740-3232


Abstract

A space-variant and a space-invariant approach for decreasing the wavelength dependence of diffractive fan-out systems was presented. Applying diffractive optical elements (DOEs) for the wave-front correction in the space-variant system, the spot sizes were lessened by half the spot sizes over a wavelength range of 20 nm. The paraxial design of the space-invariant system revealed that at least two diffractive lenses were needed. The resulting space-invariant system gave a nearly diffraction-limited performance for a wavelength range from 830 to 850 nm. A summary of the results for all three system designs were also provided.


FAU Authors / FAU Editors

Lindlein, Norbert Prof. Dr.
Lehrstuhl für Experimentalphysik (Optik)

Last updated on 2018-09-08 at 05:08