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Temporal Dynamics of Semiconductor Lasers with Optical Feedback

Vashenko, G.; Giudici, M.; Rocca, J. J.; Menoni, C. S.; Tredicce, J. R.; Balle, S.
Phy. Rev. Lett. 81, 5536-5539 (1998)

We measure the temporal evolution of the intensity of an edge emitting
semiconductor laser with delayed optical feedback for time spans ranging from
4.5 to 65 ns with a time resolution from 16ps to 230ps respectively. Spectrally
resolved streak camera measurements show that the fast pulsing of the total
intensity is a consequence of the time delay and multimode operation of the
laser. We experimentally observe that the instabilities at low
frequency are generated by the interaction among different modes of the
laser.

(Postscript file, 13 pages, 900 kb)