Fibreoptic fibers and waveguides

Influence of the spatial phase locking on amplification of pump-correlated Stokes fields in stimulated Brillouin scattering in a light guide

D. A. Glazkov, I. G. Zubarev, S. I. Mikhailov


Abstract: A theoretical method is proposed and used to calculate the gain increments and the spatial structure of scattered Stokes radiation. An allowance is made for distortions of two types: pump-uncorrelated noise and what are called rotated modes. It is shown that the latter are locked in a spatial resonance with the central reversed (phase-conjugated) mode. Such locking can occur in phase and in antiphase, with corresponding increments higher and lower than the Gaussian value of 2. The quality of wavefront reversal is estimated for a typical experimental situation.

UDC: 621.373.826

PACS: 42.65.Es, 42.65.Hw, 42.65.Tg

Received: 05.06.1986

 English version: Soviet Journal of Quantum Electronics, 1987, 17:6, 709–713

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