Holographically corrected telescope for high-bandwidth optical communications

Andersen, Geoff; Knize, R. J.

doi:10.1364/ao.38.006833

Cited by 10 publications

(3 citation statements)

References 8 publications

(7 reference statements)

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“…The Academy has conducted many experiments [12,13] involving the holographic correction of aberrated telescopes for various applications. We are currently investigating the possibility of extending our research to a 2m test using the telescope as either the corrected unit or as collimating source for similarly sized membrane mirror.…”

Section: Holographic Correctionmentioning

confidence: 99%

USAF Academy Fast-Tracking Telescope

Andersen

Buzasi

Chun

et al. 2008

2008 IEEE Aerospace Conference

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We are currently building a new 2m optical observatory at the United States Air Force Academy. Our aim is to create a ground based facility capable of tracking and imaging low Earth and astronomical objects. In conjunction with the Laser and Optics Research Center at the Academy, we can leverage lasers with an extensive range of wavelengths, powers and temporal profiles. This will make it possible to conduct a wide range of experiments involving optical ranging, communications and characterization of satellites. Plans are also being considered to use the telescope to improve the capabilities of a pre-existing thermometric lidar as well as developing innovative lidars for atmospheric analysis and relativistic studies. Future telescope research will also incorporate adaptive optics technologies being developed in the Department of Physics. The telescope will also greatly enhance the astronomical studies of cadets and faculty'2.

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Section: Holographic Correctionmentioning

confidence: 99%

USAF Academy Fast-Tracking Telescope

Andersen

Buzasi

Chun

et al. 2008

2008 IEEE Aerospace Conference

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“…6. Holographic correction: The Academy has conducted many experiments 12,13 involving the holographic correction of aberrated telescopes for various applications. We are currently investigating the possibility of extending our research to a 4m test using the LAMP telescope as either the corrected unit or as collimating source for similarly sized membrane mirror.…”

Section: Researchmentioning

confidence: 99%

U.S. Air Force Academy 4-m telescope

Andersen

Buzasi

2004

SPIE Proceedings

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The United States Air Force Academy in Colorado Springs has obtained a 4m-diameter, lightweight telescope from the Space Based Laser project. Originally designed and constructed for space, this segmented telescope is being reconfigured for use as a ground-based facility -the largest in the world, wholly owned by any single college. The telescope comes fully equipped with both active and adaptive capabilities for segment phasing and wavefront correction. However, the optical design is a Mersenne configuration, and having been constructed for a space environment, it has an extremely thin (17mm) glass primary. We are redesigning the optics (with new secondary and tertiary mirrors) and are designing a mount and truss capable of both sidereal and low-Earth satellite tracking.

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“…Phase holograms were recorded using a continuous-wave, frequency-doubled Nd:YAG laser (λ = 532nm) on bleached Agfa 8E56 plate film. Typically phase holograms produced in such a medium can be expected to be 70-90% efficient [8][9][10][11][12] , but due to the effect of low-frequency vibrations and air turbulence on the membrane, the actual efficiency was an order of magnitude lower than this.…”

Section: Holographic Correctionmentioning

confidence: 99%