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Physical Optics, Diffractive Optics

Wavelength-dependent characteristics of a telescope system with diffractive wavefront compensation

[+] Author Affiliations
Mark T. Gruneisen

United States Air Force Research Laboratory, Directed Energy Directorate, Kirtland Air Force Base, New Mexico 87117

Raymond C. Dymale, James R. Rotge´

Boeing LTS, Inc., P.O. Box 5670, Albuquerque, New Mexico 87185

Lewis F. DeSandre, Donald L. Lubin

United States Air Force Research Laboratory, Directed Energy Directorate, Kirtland Air Force Base, New Mexico 87117

Opt. Eng. 44(6), 068002 (Jun. 20, 2005). doi:10.1117/1.1922287
History: Received Sep. 20, 2004; Accepted Dec. 14, 2004; Jun. 20, 2005; Online June 20, 2005
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Diffractive wavefront control with programmable optically efficient modulo λ gratings was previously demonstrated as a means of extending the capabilities of a telescope system by compensating large aberrations associated with variations in object range and field angle within the telescope’s field of regard. Inherent in diffraction phenomenon, however, are wavelength dependences that impose limitations on operating spectral bandwidths. This paper builds on past work integrating a programmable diffractive element of large pixel count with a telescope system. We present a theoretical evaluation of the wavelength-dependent performance characteristics of a modulo λ diffractive aberration compensator and experimental demonstrations of wavelength-tunable and extended spectral bandwidth operation. Near-diffraction-limited-resolution imaging is demonstrated within the spectral operating limits imposed by diffraction theory. © 2005 Society of Photo-Optical Instrumentation Engineers.

© 2005 Society of Photo-Optical Instrumentation Engineers

Citation

Mark T. Gruneisen ; Raymond C. Dymale ; James R. Rotge´ ; Lewis F. DeSandre and Donald L. Lubin
"Wavelength-dependent characteristics of a telescope system with diffractive wavefront compensation", Opt. Eng. 44(6), 068002 (Jun. 20, 2005). ; http://dx.doi.org/10.1117/1.1922287


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