This article is cited in 1 paper

Laser applications and other topics in quantum electronics

Phase-conjugation correction of distortions in a shaping telescope with a diffraction optical component

R. B. Andreev, V. D. Volosov, V. M. Irtuganov, V. P. Kalinin, V. V. Kononov, V. E. Sherstobitov


Abstract: Compensation of dynamic aberrations of a shaping telescope was demonstrated experimentally. A diffraction optical component was placed on the main mirror of the telescope and it was used to couple in a reference radiation into a phase-conjugation system. It was also found that angular scanning of the output beam was possible without distorting it. The experiments were carried out using a photoionization CO₂ laser and an SF₆ phase-conjugating mirror. A repeater placed in the reference beam before the phase-conjugating mirror and a telescope preventing the passage of the reference beam through the aperture in the main mirror made it possible to widen the range of permissible distortions of the mirror to ~ 65 λ /D and the scanning range to ~ 44 λ /D while still retaining the angular divergence of the output beam close to the diffraction limit.

UDC: 681.7

PACS: 42.65.Hw, 42.79.Bh, 42.79.Ag, 42.60.Jf, 42.60.Da

Received: 16.11.1990

 English version: Soviet Journal of Quantum Electronics, 1991, 21:6, 691–694

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