The design of optical fiber based heads offering high accuracy and bandwidth for use in VISAR (velocity interferometer system for any reflector) experiments measuring ballistic velocities is described. A new, expanded, model for predicting the distance-dependent collection efficiency of the heads is presented. The model is shown to agree very well with experimental results, both within and outside the “depth of field”. Various optical heads are demonstrated, to suit different experimental setups and conditions. Designs offering options for high bandwidths, accurate prealignment, and large stand-off distances are discussed. Results from a typical VISAR experiment are presented, verifying that our designs yield high-quality data.
REFERENCES
1.
L. M.
Barker
and R. E.
Hollenbach
, J. Appl. Phys.
43
, 4669
(1972
).2.
D. D.
Bloomquist
and S. A.
Sheffield
, J. Appl. Phys.
54
, 1717
(1983
).3.
O. T.
Strand
, D. R.
Goosman
, C.
Martines
, and T. L.
Whitworth
, Rev. Sci. Instrum.
77
, 83108
(2006
).4.
E.
Shafir
, G.
Berkovic
, G.
Appelbaum
, E.
Moshe
, E.
Horovitz
, A.
Skutalski
, M.
Verdiger
, L.
Perelmutter
, and M.
Sudai
, J. Appl. Phys.
101
, 093107
(2007
).5.
W. F.
Hemsing
, Rev. Sci. Instrum.
, 50
, 73
(1979
).6.
L. M.
Barker
, U.S. Patent 5202558 (April 13, 1993
).7.
W. C.
Sweatt
, Rev. Sci. Instrum.
63
, 2945
(1992
).8.
Zeren
Li
, Ruchao
Ma
, Guanghua
Chen
, Jun
Liu
, and Jianquan
Yao
, Rev. Sci. Instrum.
70
, 3872
(1999
).9.
See for example Valyn Visar Systems, http://www.valynvisar.com.
10.
W. C.
Sweatt
and O. B.
Crump
, Jr., Rev. Sci. Instrum.
62
, 2946
(1991
).11.
E.
Moshe
, S.
Eliezer
, Z.
Henis
, M.
Werdiger
, E.
Dekel
, Y.
Horovitz
, S.
Maman
, I. B.
Goldberg
, and D.
Eliezer
, Appl. Phys. Lett.
76
, 1555
(2000
).12.
B.
Glam
, S.
Eliezer
, D.
Moreno
, L.
Perelmutter
, M.
Sudai
, and D.
Eliezer
, Int. J. Fracture
163
, 217
(2010
).13.
TIA/EIA Standard 455–204
(2000
): Measurement of Bandwidth on Multimode Fiber.14.
J. M.
Senior
, Optical Fiber Communications. Principles and Practice
, 3rd ed. (Pearson Prentice Hall
, Englewood Cliffs, NJ
, 2009
).15.
E. A.
Kuzin
, M. P.
Petrov
, and B. E.
Davydenko
, Opt. Quantum Electron.
17
, 393
, (1985
).© 2011 American Institute of Physics.
2011
American Institute of Physics
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