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Optics Letters

Optics Letters


  • Vol. 21, Iss. 15 — Aug. 1, 1996
  • pp: 1126–1128

Phase conjugation in Cr4+:YAG at 1.06 μm

A. Brignon and J.-P. Huignard  »View Author Affiliations

Optics Letters, Vol. 21, Issue 15, pp. 1126-1128 (1996)

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Phase conjugation in a Cr4+:YAG saturable absorber by degenerate four-wave mixing with nanosecond pulses at λ = 1.06 μm is demonstrated for the first time to our knowledge. An experimental phase-conjugate energy reflectivity of ~2% and an overall efficiency of ~0.4% are achieved. Because of the presence of absorbing dipoles oriented along specific directions, it is shown that the phase-conjugated beam can be made orthogonally polarized relative to the signal beam or to both pump beams with almost no reduction of the energy reflectivity.

© 1996 Optical Society of America

Original Manuscript: February 1, 1996
Published: August 1, 1996

A. Brignon and J.-P. Huignard, "Phase conjugation in Cr4+:YAG at 1.06 μm," Opt. Lett. 21, 1126-1128 (1996)

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