We report on the observation of frequency multistability in a semiconductor laser emission. We experimentally study the spectral behavior of a semiconductor laser under a spectrally filtered orthogonal-polarization feedback and show that using a reinjected signal having both absorptive and dispersive lineshapes, we are able to control the laser spectral response exhibiting bistability or multistability. We describe all the observed spectra, considering only the linear response of the laser and both the amplitude and phase filtering of the reinjected orthogonal field.
© 2007 Optical Society of America
Lasers and Laser Optics
Original Manuscript: October 27, 2006
Revised Manuscript: March 26, 2007
Manuscript Accepted: April 12, 2007
Published: July 19, 2007
M. Oriá, B. Farias, T. Sorrentino, and M. Chevrollier, "Multistability in the emission frequency of a semiconductor laser," J. Opt. Soc. Am. B 24, 1867-1873 (2007)