Abstract

Photorefractively induced index-of-refraction phase gratings are shown to combine coherently the optical fields of a strong pump and a suitably amplitude- or phase-modulated signal beam in such a way that an apparent amplification of the modulating waveform appears as intensity modulation of the transmitted signal and pump beam intensities. The source of the signal gain is shown to be the square-law (intensity) detection of the coherently combined pump and modulated signal beams, just as in coherent optical communication systems in which a strong local-oscillator field is coherently added with a weak optical signal field by a beam splitter.

© 1988 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. G. Hamel de Montchenault, B. Loiseaux, J. P. Hiugnard, Appl. Phys. Lett. 50, 1794 (1987).
    [CrossRef]
  2. M. Mirsalehi, T. K. Gaylord, E. I. Verriest, Appl. Opt. 25, 1608 (1986).
    [CrossRef] [PubMed]
  3. N. V. Kukhtarev, V. B. Markov, S. G. Odulov, M. S. Soskin, V. L. Vinetskii, Ferroelectrics 22, 949 (1979).
    [CrossRef]
  4. D. I. Stasel’ko, V. G. Sidorovich, Sov. Phys. Tech. Phys. 19, 361 (1974).
  5. P. Gunter, Phys. Rep. 93, 199 (1982).
    [CrossRef]
  6. H. Kogelnik, Bell Syst. Tech. J. 48, 2909 (1969).

1987

G. Hamel de Montchenault, B. Loiseaux, J. P. Hiugnard, Appl. Phys. Lett. 50, 1794 (1987).
[CrossRef]

1986

1982

P. Gunter, Phys. Rep. 93, 199 (1982).
[CrossRef]

1979

N. V. Kukhtarev, V. B. Markov, S. G. Odulov, M. S. Soskin, V. L. Vinetskii, Ferroelectrics 22, 949 (1979).
[CrossRef]

1974

D. I. Stasel’ko, V. G. Sidorovich, Sov. Phys. Tech. Phys. 19, 361 (1974).

1969

H. Kogelnik, Bell Syst. Tech. J. 48, 2909 (1969).

Gaylord, T. K.

Gunter, P.

P. Gunter, Phys. Rep. 93, 199 (1982).
[CrossRef]

Hamel de Montchenault, G.

G. Hamel de Montchenault, B. Loiseaux, J. P. Hiugnard, Appl. Phys. Lett. 50, 1794 (1987).
[CrossRef]

Hiugnard, J. P.

G. Hamel de Montchenault, B. Loiseaux, J. P. Hiugnard, Appl. Phys. Lett. 50, 1794 (1987).
[CrossRef]

Kogelnik, H.

H. Kogelnik, Bell Syst. Tech. J. 48, 2909 (1969).

Kukhtarev, N. V.

N. V. Kukhtarev, V. B. Markov, S. G. Odulov, M. S. Soskin, V. L. Vinetskii, Ferroelectrics 22, 949 (1979).
[CrossRef]

Loiseaux, B.

G. Hamel de Montchenault, B. Loiseaux, J. P. Hiugnard, Appl. Phys. Lett. 50, 1794 (1987).
[CrossRef]

Markov, V. B.

N. V. Kukhtarev, V. B. Markov, S. G. Odulov, M. S. Soskin, V. L. Vinetskii, Ferroelectrics 22, 949 (1979).
[CrossRef]

Mirsalehi, M.

Odulov, S. G.

N. V. Kukhtarev, V. B. Markov, S. G. Odulov, M. S. Soskin, V. L. Vinetskii, Ferroelectrics 22, 949 (1979).
[CrossRef]

Sidorovich, V. G.

D. I. Stasel’ko, V. G. Sidorovich, Sov. Phys. Tech. Phys. 19, 361 (1974).

Soskin, M. S.

N. V. Kukhtarev, V. B. Markov, S. G. Odulov, M. S. Soskin, V. L. Vinetskii, Ferroelectrics 22, 949 (1979).
[CrossRef]

Stasel’ko, D. I.

D. I. Stasel’ko, V. G. Sidorovich, Sov. Phys. Tech. Phys. 19, 361 (1974).

Verriest, E. I.

Vinetskii, V. L.

N. V. Kukhtarev, V. B. Markov, S. G. Odulov, M. S. Soskin, V. L. Vinetskii, Ferroelectrics 22, 949 (1979).
[CrossRef]

Appl. Opt.

Appl. Phys. Lett.

G. Hamel de Montchenault, B. Loiseaux, J. P. Hiugnard, Appl. Phys. Lett. 50, 1794 (1987).
[CrossRef]

Bell Syst. Tech. J.

H. Kogelnik, Bell Syst. Tech. J. 48, 2909 (1969).

Ferroelectrics

N. V. Kukhtarev, V. B. Markov, S. G. Odulov, M. S. Soskin, V. L. Vinetskii, Ferroelectrics 22, 949 (1979).
[CrossRef]

Phys. Rep.

P. Gunter, Phys. Rep. 93, 199 (1982).
[CrossRef]

Sov. Phys. Tech. Phys.

D. I. Stasel’ko, V. G. Sidorovich, Sov. Phys. Tech. Phys. 19, 361 (1974).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (2)

Fig. 1
Fig. 1

Geometry of photorefractive two-wave mixing of the modulated signal beam Is = |C−1(z, t)|2 and unmodulated pump beam Ip = |C+1(z, t)|2.

Fig. 2
Fig. 2

Dependence of noninverting small-signal gain for on–off amplitude modulation of the signal beam intensity on the square root of the photorefractive gain for several beam intensity ratios.

Equations (10)

Equations on this page are rendered with MathJax. Learn more.

E y ( x , z , t ) = l = C l ( z , t ) exp j ( k z z + l k x x ω t ) ,
l = [ ( 1 l 2 ) C l + 2 j k z C l z + 2 C l z 2 ] × [ j ( k z z + l k x x ω t ) ] = k 2 m = Δ ( x , z ) s × C m exp [ j ( k z z + m k x x ω t ) ] ,
d C + 1 ( z ) d z = k x k z k 2 β s | C 1 ( z ) | 2 C + 1 ( z ) ,
d C 1 ( z ) d z = k x k z k 2 β s | C + 1 ( z ) | 2 C 1 ( z ) .
d d z [ C + 1 ( z , t ) C 1 ( z , t ) ] = [ 0 g ( z ) g ( z ) 0 ] [ C + 1 ( z , t ) C 1 ( z , t ) ] ,
[ C + 1 ( z , t ) C 1 ( z , t ) ] = [ cos δ ( z ) sin δ ( z ) sin δ ( z ) cos δ ( z ) ] [ C + 1 ( o , t ) C 1 ( o , t ) ] ,
I + 1 ( d , t ) = I p ( o ) cos 2 δ + | C 1 ( o , t ) | 2 sin 2 δ sin δ cos δ [ C + 1 ( o ) C 1 * ( o , t ) + C + 1 * ( o ) C 1 ( o , t ) ] ,
I 1 ( d , t ) = I p ( o ) sin 2 δ + | C 1 ( o , t ) | 2 cos 2 δ + sin δ cos δ [ C + 1 ( o ) C 1 * ( o , t ) + C + 1 * ( o ) C 1 ( o , t ) ] .
g s ( ) = m sin 2 δ + sin 2 δ ,
g s ( + ) = m sin 2 δ + cos 2 δ .

Metrics