We report on an optical arrangement capable of compensating angular dispersion of paraxial wave fields developed by diffractive optical elements (DOEs). Schematically, the system is a beam expander in which two phase-only zone plates have been inserted, remaining afocal the coupled system. The DOE, which induces a continuous set of dispersive tilted plane waves, is placed at a specific position within the proposed setup providing an output spectrum with achromatic angular deviation. A directional matching between phase fronts and pulse fronts of output wave packets is demonstrated.
© 2007 Optical Society of America
Original Manuscript: May 17, 2007
Manuscript Accepted: June 18, 2007
Published: August 16, 2007
Carlos J. Zapata-Rodríguez and María T. Caballero, "Isotropic compensation of diffraction-driven angular dispersion," Opt. Lett. 32, 2472-2474 (2007)