We present what is to our knowledge the first study of optical bistability in Fabry–Perot laser-diode amplifiers that have asymmetric facet reflectivities. When operated in reflection, the light input–light output characteristics exhibit a transition from counterclockwise to clockwise hysteresis by way of an X-shaped or butterfly hysteresis. This transition can be achieved by a change in either the device bias or the phase detuning of the incident light. Our results are in good agreement with calculation.
© 1994 Optical Society of America
Original Manuscript: September 20, 1993
Published: February 15, 1994
N. F. Mitchell, J. C. Connolly, J. O’Gorman, and J. Hegarty, "Optical bistability in asymmetric Fabry–Perot laser-diode amplifiers," Opt. Lett. 19, 269-271 (1994)