This article is cited in 6 papers

Lasers

Generation of equidistant frequencies in a semiconductor laser with an external cavity

S. N. Bagayev, V. G. Volkov, D. Yu. Ivashko, Yu. A. Matyugin, N. V. Fateev

Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk

Abstract: A cw semiconductor laser with external feedback provided by a diffraction grating was investigated experimentally. The laser drive current was modulated at a frequency of 0.3 — 5 GHz. The spectrum of the output radiation consisted of several equidistant frequencies and the intervals between these frequencies were determined by the current-modulation frequency. Optimal conditions were found for the generation of the maximum number of such frequency components. The maximum width of the spectrum was 48 GHz. A method was developed for measuring the difference frequencies in the optical range with the aid of such lasers.

PACS: 42.55.Px, 42.60.Fc

Received: 02.07.1997

 English version: Quantum Electronics, 1999, 29:2, 109–113

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