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Optics Letters

Optics Letters


  • Vol. 13, Iss. 6 — Jun. 1, 1988
  • pp: 506–508

Coherent optical detection through two-wave mixing in photorefractive materials

F. Davidson, L. Boutsikaris, and M. Krainak  »View Author Affiliations

Optics Letters, Vol. 13, Issue 6, pp. 506-508 (1988)

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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

Original Manuscript: November 20, 1987
Manuscript Accepted: March 16, 1988
Published: June 1, 1988

F. Davidson, M. Krainak, and L. Boutsikaris, "Coherent optical detection through two-wave mixing in photorefractive materials," Opt. Lett. 13, 506-508 (1988)

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