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

Mark T. Gruneisen; Raymond C. Dymale; James R. Rotgé; Lewis F. DeSandre; Donald L. Lubin

doi:10.1117/1.1922287

1 June 2005 Wavelength-dependent characteristics of a telescope system with diffractive wavefront compensation

Mark T. Gruneisen, Raymond C. Dymale, James R. Rotgé, Lewis F. DeSandre, Donald L. Lubin

Author Affiliations +

Optical Engineering, Vol. 44, Issue 6, 068002 (June 2005). https://doi.org/10.1117/1.1922287

Abstract

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 (SPIE)

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Mark T. Gruneisen, Raymond C. Dymale, James R. Rotgé, Lewis F. DeSandre, and Donald L. Lubin "Wavelength-dependent characteristics of a telescope system with diffractive wavefront compensation," Optical Engineering 44(6), 068002 (1 June 2005). https://doi.org/10.1117/1.1922287

Published: 1 June 2005

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