Abstract

We introduce M/# as a metric for characterizing holographic memory systems. M/# is the constant of proportionality between diffraction efficiency and the number of holograms squared. Although M/# is a function of many variables in a holographic recording system, it can be measured from the recording and erasure of a single hologram. We verify experimentally that the diffraction efficiency of multiple holograms follows the prediction of M/# measured from a single hologram.

© 1996 Optical Society of America

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References

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  1. D. L. Staebler, J. J. Amodei, W. Phillips, presented at the VII International Quantum Electronics Conference, Montreal, Canada, May 1972.
  2. D. Psaltis, D. Brady, K. Wagner, Appl. Opt. 27, 1752 (1988).
    [CrossRef]
  3. E. Maniloff, K. Johnson, J. Appl. Phys. 70, 4702 (1991).
    [CrossRef]

1991 (1)

E. Maniloff, K. Johnson, J. Appl. Phys. 70, 4702 (1991).
[CrossRef]

1988 (1)

Amodei, J. J.

D. L. Staebler, J. J. Amodei, W. Phillips, presented at the VII International Quantum Electronics Conference, Montreal, Canada, May 1972.

Brady, D.

Johnson, K.

E. Maniloff, K. Johnson, J. Appl. Phys. 70, 4702 (1991).
[CrossRef]

Maniloff, E.

E. Maniloff, K. Johnson, J. Appl. Phys. 70, 4702 (1991).
[CrossRef]

Phillips, W.

D. L. Staebler, J. J. Amodei, W. Phillips, presented at the VII International Quantum Electronics Conference, Montreal, Canada, May 1972.

Psaltis, D.

Staebler, D. L.

D. L. Staebler, J. J. Amodei, W. Phillips, presented at the VII International Quantum Electronics Conference, Montreal, Canada, May 1972.

Wagner, K.

Appl. Opt. (1)

J. Appl. Phys. (1)

E. Maniloff, K. Johnson, J. Appl. Phys. 70, 4702 (1991).
[CrossRef]

Other (1)

D. L. Staebler, J. J. Amodei, W. Phillips, presented at the VII International Quantum Electronics Conference, Montreal, Canada, May 1972.

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Figures (3)

Fig. 1
Fig. 1

Number of holograms discarded from recording schedule versus fraction f of M/# used, for storage of 1000 holograms.

Fig. 2
Fig. 2

Average recording time versus fraction f of M/# used.

Fig. 3
Fig. 3

Diffraction efficiency versus number of holograms stored, for f = 0.8 and f = 0.6. The final recording time for M holograms is tlast = fτe/M, where τe = 540 s.

Tables (1)

Tables Icon

Table 1 Experimentally Measured M/#

Equations (3)

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η = [ ( A 0 τ r ) τ e M ] 2 = ( M / # M ) 2 .
M / # = ( A 0 τ r ) τ e .
t m 1 = t m exp ( t m / τ e ) ,

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