Swept dynamics of a CO2 laser near threshold: Two- versus four-level model

Anno: 1988

Autori: Arecchi F.T., Gadomski W., Meucci R., Roversi J. A.

Affiliazione autori: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: The swept behavior of a single mode homogeneously broadened CO2 laser has been characterized by applying a triangular modulation to an electro optic modulator inside the optical cavity. We observe a dynamical hysteresis effect depending on the modulation depth and on the sweep rate. Our experimental results can be explained in the framework of a four level molecular model which takes into account the coupling between the two resonant levels and the rotational manifold.

Giornale/Rivista: OPTICS COMMUNICATIONS

Volume: 65 (1)      Da Pagina: 47  A: 51

Maggiori informazioni: The authors are very grateful to A. Poggi for useful discussions. One of us (J.A.R.) has a fellowship of CNPq (National Research Council of Brazil). This work was partly supported by the European Economic Community.
Parole chiavi: Band structure; Electrooptical devices; Laser beams, modulation; Resonators, cavity; Electro-optic modulator; Four-level molecular model; Triangular modulation; Two-level molecular model; Lasers carbon dioxide
DOI: 10.1016/0030-4018(88)90439-7

Citazioni: 36
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18
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