Nonlinear optical phenomena and devices

Multipass CO₂ amplifier with four-wave phase-conjugating mirrors

A. A. Betin, K. V. Ergakov, O. V. Mitropol'skiĭ, D. V. Osipov

Institute of Applied Physics, Russian Academy of Sciences, Nizhnii Novgorod

Abstract: A narrow-band adaptive multipass amplifier with four-wave phase-conjugating mirrors was developed. Pumping of these mirrors with radiations from two independent master oscillators was used in a three-pass CO₂ amplifier with two four-wave mirrors operating on the basis of a thermal nonlinearity of a liquid (CCl₄). The total gain achieved in this way was 2×10¹¹. Two-pass and four-pass operation was also achieved and the corresponding gains were 1.5×10⁷ and 5×10⁹, respectively.

PACS: 42.60.Da, 42.55.Lt, 42.65.Hw

Received: 08.10.1993

 English version: Quantum Electronics, 1994, 24:7, 636–639

Bibliographic databases:

•