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Kvantovaya Elektronika, 2006, Volume 36, Number 3, Pages 266–273 (Mi qe13133)  

Nonlinear optical phenomena

Preliminary training of a self-pumped loop phase-conjugate mirror based on a photorefractive crystal

M. Wahdani Mogaddam, V. V. Shuvalov

International Laser Center of Moscow State University

Abstract: It is shown by the example of a loop self-pumped phase-conjugate (SPPC) mirror based on a photorefractive crystal (PRC) BaTiO3 that formation of a phase-conjugate (PC) wave in a SPPC mirror can be considerably accelerated by using a preliminary training of the mirror. For this purpose, it is necessary to direct preliminary an auxiliary (training) optical field on the SPPC mirror, which contains some information on the properties of the input signal whose wave front will be conjugated later. This procedure provides the writing of static refractive-index gratings in the PRC already at the training stage. The presence of these gratings ensures a much more rapid (by 6–20 times) production of volume refractive-index gratings required for the efficient conjugation of the signal radiation. Several variants of static and dynamic SPPC mirror training procedures are simulated and their efficiencies are compared.

Full text: PDF file (594 kB)

English version:
Quantum Electronics, 2006, 36:3, 266–273

Bibliographic databases:

PACS: 42.65.Hw, 42.65.Sf, 42.70.Nq
Received: 07.11.2005

Citation: M. Wahdani Mogaddam, V. V. Shuvalov, “Preliminary training of a self-pumped loop phase-conjugate mirror based on a photorefractive crystal”, Kvantovaya Elektronika, 36:3 (2006), 266–273 [Quantum Electron., 36:3 (2006), 266–273]

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