Abstract
Boeing LTS, Inc.P.O. Box 5670Albuquerque, New Mexico 87185Lewis F. DeSandreDonald L. LubinUnited States Air Force ResearchLaboratoryDirected Energy DirectorateKirtland Air Force Base, New Mexico 87117Abstract. Diffractive wavefront control with programmable optically effi-cient modulo l gratings was previously demonstrated as a means ofextending the capabilities of a telescope system by compensating largeaberrations associated with variations in object range and field anglewithin the telescope’s field of regard. Inherent in diffraction phenomenon,however, are wavelength dependences that impose limitations on oper-ating spectral bandwidths. This paper builds on past work integrating aprogrammable diffractive element of large pixel count with a telescopesystem. We present a theoretical evaluation of the wavelength-dependent performance characteristics of a modulo l diffractive aberra-tion compensator and experimental demonstrations of wavelength-tunable and extended spectral bandwidth operation. Near-diffraction-limited-resolution imaging is demonstrated within the spectral operatinglimits imposed by diffraction theory.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
