Abstract

The polarisation properties of a reference-free hologram inside which the diffraction of the recording depolarised radiation from the speckle inhomogeneities is insignificant, are studied. It is shown that such a hologram, used asthe output mirror of a ring laser, has selective properties forthe specklon waves comprising the lasing mode. The behaviour of the fundamental mode of a holographic laser with aninhomogeneous birefringent medium inside the cavity is analysed. Conditions for attaining amplitude-phase relations between mode specklons, which are required for vector phaseconjugation of depolarised speckle signal, are determined.

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