Abstract

Electroholographic switching with a rise time of 13ns is henceforth presented. The switching was demonstrated in a potassium lithium tantalate crystal doped with copper and titanium with Tc=10°C. The crystal was operated at 17°C. The switching operation was done in the g11g12 configuration, in which the Bragg condition remains fulfilled at all levels of the applied field. As electroholography is a wavelength-selective switching method, this opens the way for implementing optical packet switching and fast wavelength addressing schemes in optical fiber networks that apply wavelength division multiplexing.

© 2009 Optical Society of America

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References

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  1. A. J. Agranat, Top. Appl. Phys. 86, 129 (2002).
  2. A. J. Agranat, V. Leyva, and A. Yariv, Opt. Lett. 14, 1017 (1989).
    [CrossRef] [PubMed]
  3. A. J. Agranat, R. Hofmeister, and A. Yariv, Opt. Lett. 17, 713 (1992).
    [CrossRef] [PubMed]
  4. R. Hofmeister, S. Yagi, A. Yariv, and A. J. Agranat, J. Cryst. Growth 131, 486 (1993).
    [CrossRef]
  5. A. Bitman, N. Sapiens, L. Secundo, A. J. Agranat, G. Bartal, and M. Segev, Opt. Lett. 31, 2849 (2006).
    [CrossRef] [PubMed]

2006

2002

A. J. Agranat, Top. Appl. Phys. 86, 129 (2002).

1993

R. Hofmeister, S. Yagi, A. Yariv, and A. J. Agranat, J. Cryst. Growth 131, 486 (1993).
[CrossRef]

1992

1989

Agranat, A. J.

Bartal, G.

Bitman, A.

Hofmeister, R.

R. Hofmeister, S. Yagi, A. Yariv, and A. J. Agranat, J. Cryst. Growth 131, 486 (1993).
[CrossRef]

A. J. Agranat, R. Hofmeister, and A. Yariv, Opt. Lett. 17, 713 (1992).
[CrossRef] [PubMed]

Leyva, V.

Sapiens, N.

Secundo, L.

Segev, M.

Yagi, S.

R. Hofmeister, S. Yagi, A. Yariv, and A. J. Agranat, J. Cryst. Growth 131, 486 (1993).
[CrossRef]

Yariv, A.

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Figures (5)

Fig. 1
Fig. 1

Diffraction in a symmetrical transmission Bragg grating.

Fig. 2
Fig. 2

Schematics of setup to measure the hologram diffraction efficiency.

Fig. 3
Fig. 3

Typical measurement of the diffraction efficiency as a function of the applied electric field.

Fig. 4
Fig. 4

High-voltage fast-switching circuit based on the Behlke module.

Fig. 5
Fig. 5

Measurement of the optical signal of the diffracting beam in response to a step-function driving voltage. The measured rise time is 13 ns .

Equations (7)

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n ( x ) = n 0 + n 1 cos ( K x ) ,
2 n 0 Λ sin θ in = λ .
n 1 = { n 1 ( E 0 ) when E = E 0 0 when E = 0 } .
η = I diff I inc = sin 2 ( π n 1 d λ cos θ B ) ,
Δ n = 1 2 n 0 3 g eff P 2 ,
P = ε 0 ( ε r 1 ) E ε 0 ε r E = ε E ,
n 1 = Δ n = n 0 3 g eff ( ε 0 ε r ) 2 E SC E 0 ,

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