Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Photorefractive Effects, Materials, and Devices

Study of the conjugation fidelity of the double phase conjugate mirror

Philippe Delaye, Andrei A. Fotiadi, Gérald Roosen

Published Jan 1, 1999• 0 citations
Publisher

Abstract

We present a theoretical and experimental study of the conjugation fidelity of a double phase conjugate mirror (DPCM). We demonstrate that DPCM is reciprocal what leads to the conservation of the fidelity-transmission product.
DOI
10.1364/apmed.1999.wmpc30

Related papers

Reciprocity and conjugation fidelity in double phase conjugate mirrors

Philippe Delaye, Andrei A. Fotiadi, Gérald Roosen

It is well known that the conservation of energy in an optical system can be described by an invariant (intensity of the optical wave) during propagation. We identically show that reciprocity can be described by an invariant. This invariant is the overlap integral of two counterpropagating waves, that stays constant in every place of a reciprocal optical system. Applied to the double phase conjugate mirror (DPCM) this invariant can be rewritten as an equality between the ratio of the conjugation fidelity of the two ports of the DPCM and the ratio of the transmission in intensity of the two beams. If restricted to a plane wave case this relation becomes the well known equality of the diffraction efficiencies in both directions. We have implemented an experimental set-up that allows to show that the double phase conjugate mirror is reciprocal what confirms all the above discussion. We use the same set-up to measure the conjugation fidelity of the DPCM.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Sep 20, 1999•0 citations

Fidelity-threshold and critical slowing down in photorefractive double phase conjugate mirrors

Doruk Engin, Sergei S. Orlov, Mordechai Segev +2 more

Summary form only given. In conclusion, we present theoretical and experimental results that analyze the double phase conjugation process. We establish the existence of gain-threshold and point out the differences between conjugation fidelity and conjugation reflectivity. We study the oscillatory nature of the DPCM and predict the existence of critical slowing down near the gain-threshold.>

Nonlinear Optics•Dec 17, 2002•0 citations

Reciprocity and phase conjugation: application to the study of the double phase conjugate mirror

Philippe Delaye, Andrei A. Fotiadi, Gérald Roosen

Optics Communications•Jan 1, 2000•2 citations

Fidelity in double phase-conjugate mirrors with Fe-doped KNbO/sub 3/

Carolina Medrano, M. Zgonik, Pietro G. Bernasconi +1 more

European Quantum Electronics Conference (EQEC)•Aug 24, 2005•0 citations

Conjugation fidelity and reflectivity in photorefractive double phase-conjugate mirrors

Sergei S. Orlov, George C. Valley, Mordechai Segev +1 more

We present an experimental study of the behavior of photorefractive double phase-conjugate mirrors that illustrates recent theoretical predictions. We observe a sharp fidelity threshold that significantly depends on the specific feature size in the input beams. Furthermore, we find that if the two input beams have unequal intensities the conjugation process is asymmetric and the steady-state fidelity is better on the side of the crystal on which the more-intense beam enters.

Optics Letters•Apr 15, 1994•21 citations

Fidelity of polarization and spatial information recovery using a fiber-coupled phase-conjugate mirror

Yasuo Tomita, Ram Yahalom, Amnon Yariv

We report the investigation of polarization and spatial information recovery using a fiber-coupled phase-conjugate mirror. A marked dependence of the phase-conjugate output on the input-beam conditions is experimentally observed. A theoretical model for these phenomena is also discussed.

Optics Letters•Dec 1, 1987•10 citations
It is well known that the conservation of energy in an optical system can be described by an invariant (intensity of the optical wave) during propagation. We identically show that reciprocity can be described by an invariant. This invariant is the overlap integral of two counterpropagating waves, that stays constant in every place of a reciprocal optical system. Applied to the double phase conjugate mirror (DPCM) this invariant can be rewritten as an equality between the ratio of the conjugation fidelity of the two ports of the DPCM and the ratio of the transmission in intensity of the two beams. If restricted to a plane wave case this relation becomes the well known equality of the diffraction efficiencies in both directions. We have implemented an experimental set-up that allows to show that the double phase conjugate mirror is reciprocal what confirms all the above discussion. We use the same set-up to measure the conjugation fidelity of the DPCM.