Frequency bistability of a semiconductor laser under a frequency-dependent feedback.
The emission frequency of a diode laser submitted to a frequency-dependent optoelectronic feedback is observed to have more than one stable operation point together with a stable power emission. This is, to our knowledge, the first observation of bistability exclusively in the frequency of an optical system. The experiment was carried out with a semiconductor laser coupled to the cesium D2 line by an orthogonally polarized frequency-sensitive optical feedback.
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Laboratório de Física Atômica e Lasers - D.F. - Universidade Federal da Paraíba, Cx. Postal 5008, 58051-970 João Pessoa-PB, Brazil.
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Chevrollier
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Oriá
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