Abstract

The use of a retroreflector is described for co-alignment of two optical beams that are collimated but propagating in opposite directions. This method is applicable to any optical system that requires precise pointing, such as laser-ranging and tracking systems. The application illustrated here is star acquisition in long-baseline stellar interferometry.

© 1998 Optical Society of America

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References

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  1. J. E. Baldwin et al., “Design and performance of COAST,” Proc. of Amplitude and Intensity Spatial Interferometry II, J. B. Breckinridge ed. 2200 (SPIE Optical Engineering Press, Bellingham, Wash., 1994), pp. 118–128.
  2. J. E. Faller, E. J. Wampler. “The lunar laser reflector,” Sci. Am. March, 138–146 (1970).
  3. F. E. Wargocki, G. E. Hall, “Retroreflector field tracker,” Proc. of State-of-the-Art Imaging Arrays and Their Applications501,(SPIE Optical Engineering Press, Bellingham, Wash., 1984) pp. 283–291.
  4. Selected Papers on Long Baseline Stellar Interferometry, P. R. Lawson, ed., (SPIE Optical Engineering Press, Bellingham, Wash., 1997).
  5. V. Coudé du Foresto, S. Ridgway, “FLUOR: A stellar interferometer using single-mode infrared fibers,” ) High-Resolution Imaging by Interferometry II, J. M. Beckers, F. Merkle eds., (ESO, Garching, 1992) pp. 731–740.
  6. M. M. Colavita et al., “ASEPS-O testbed interferometer,” Proc. of Amplitude and Intensity Spatial Interferometry II, J. B. Breckinridge ed. 2200 (SPIE Optical Engineering Press, Bellingham, Wash., 1994), pp. 89–97.

1970 (1)

J. E. Faller, E. J. Wampler. “The lunar laser reflector,” Sci. Am. March, 138–146 (1970).

Baldwin, J. E.

J. E. Baldwin et al., “Design and performance of COAST,” Proc. of Amplitude and Intensity Spatial Interferometry II, J. B. Breckinridge ed. 2200 (SPIE Optical Engineering Press, Bellingham, Wash., 1994), pp. 118–128.

Colavita, M. M.

M. M. Colavita et al., “ASEPS-O testbed interferometer,” Proc. of Amplitude and Intensity Spatial Interferometry II, J. B. Breckinridge ed. 2200 (SPIE Optical Engineering Press, Bellingham, Wash., 1994), pp. 89–97.

Coudé du Foresto, V.

V. Coudé du Foresto, S. Ridgway, “FLUOR: A stellar interferometer using single-mode infrared fibers,” ) High-Resolution Imaging by Interferometry II, J. M. Beckers, F. Merkle eds., (ESO, Garching, 1992) pp. 731–740.

Faller, J. E.

J. E. Faller, E. J. Wampler. “The lunar laser reflector,” Sci. Am. March, 138–146 (1970).

Hall, G. E.

F. E. Wargocki, G. E. Hall, “Retroreflector field tracker,” Proc. of State-of-the-Art Imaging Arrays and Their Applications501,(SPIE Optical Engineering Press, Bellingham, Wash., 1984) pp. 283–291.

Ridgway, S.

V. Coudé du Foresto, S. Ridgway, “FLUOR: A stellar interferometer using single-mode infrared fibers,” ) High-Resolution Imaging by Interferometry II, J. M. Beckers, F. Merkle eds., (ESO, Garching, 1992) pp. 731–740.

Wampler, E. J.

J. E. Faller, E. J. Wampler. “The lunar laser reflector,” Sci. Am. March, 138–146 (1970).

Wargocki, F. E.

F. E. Wargocki, G. E. Hall, “Retroreflector field tracker,” Proc. of State-of-the-Art Imaging Arrays and Their Applications501,(SPIE Optical Engineering Press, Bellingham, Wash., 1984) pp. 283–291.

Sci. Am. March (1)

J. E. Faller, E. J. Wampler. “The lunar laser reflector,” Sci. Am. March, 138–146 (1970).

Other (5)

F. E. Wargocki, G. E. Hall, “Retroreflector field tracker,” Proc. of State-of-the-Art Imaging Arrays and Their Applications501,(SPIE Optical Engineering Press, Bellingham, Wash., 1984) pp. 283–291.

Selected Papers on Long Baseline Stellar Interferometry, P. R. Lawson, ed., (SPIE Optical Engineering Press, Bellingham, Wash., 1997).

V. Coudé du Foresto, S. Ridgway, “FLUOR: A stellar interferometer using single-mode infrared fibers,” ) High-Resolution Imaging by Interferometry II, J. M. Beckers, F. Merkle eds., (ESO, Garching, 1992) pp. 731–740.

M. M. Colavita et al., “ASEPS-O testbed interferometer,” Proc. of Amplitude and Intensity Spatial Interferometry II, J. B. Breckinridge ed. 2200 (SPIE Optical Engineering Press, Bellingham, Wash., 1994), pp. 89–97.

J. E. Baldwin et al., “Design and performance of COAST,” Proc. of Amplitude and Intensity Spatial Interferometry II, J. B. Breckinridge ed. 2200 (SPIE Optical Engineering Press, Bellingham, Wash., 1994), pp. 118–128.

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Figures (2)

Figure 1
Figure 1

Normal operation of an acquisition camera.

Figure 2
Figure 2

Retroreflector used to provide an artificial star as a target for alignment.

Equations (1)

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θ = ( 1 / M ) arctan [ ( d 1 + d 2 ) / 2 l ] ,

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