An exact analysis is presented of the steady-state stability of a semiconductor laser subjected to feedback from a phase-conjugate mirror. Reduced stability occurs at low feedback whenever the effective external delay time is an integer multiple of the relaxation oscillation period. The role of a finite response time of the mirror is to enhance drastically the steady-state stability.
© 1998 Optical Society of America
(140.2020) Lasers and laser optics : Diode lasers
(140.3430) Lasers and laser optics : Laser theory
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.5960) Lasers and laser optics : Semiconductor lasers
(190.5040) Nonlinear optics : Phase conjugation
Wim A. van der Graaf, Luis Pesquera, and Daan Lenstra, "Stability of a diode laser with phase-conjugate feedback," Opt. Lett. 23, 256-258 (1998)