Suppression of low-frequency fluctuations and stabilization of a semiconductor laser subjected to optical feedback from a double cavity: theoretical results.

We demonstrate numerically that low-frequency fluctuations (LFF's) observed in a laser diode subjected to a first optical feedback with a short delay are suppressed by means of an adequate second optical feedback. The general idea of this technique is based on the observation that second feedback can suppress the antimodes that are responsible for the crises in the LFF regime. Furthermore, we observe that the second optical feedback can steer an unstable laser that is biased near threshold into a stable regime.

[1]  A. Gavrielides,et al.  Experimental control of a chaotic semiconductor laser. , 1998, Optics letters.

[2]  T. Sano,et al.  Antimode dynamics and chaotic itinerancy in the coherence collapse of semiconductor lasers with optical feedback. , 1994 .

[3]  C R Mirasso,et al.  Prevention of coherence collapse in diode lasers by dynamic targeting. , 1997, Optics letters.

[4]  Athanasios Gavrielides,et al.  Bifurcation Cascade in a Semiconductor Laser Subject to Optical Feedback , 1999 .

[5]  Levine,et al.  Diode lasers with optical feedback: Stability of the maximum gain mode. , 1995, Physical review. A, Atomic, molecular, and optical physics.

[6]  Junji Ohtsubo,et al.  Dynamics and chaos stabilization of semiconductor lasers with optical feedback from an interferometer , 1997 .

[7]  Jesper Mørk,et al.  Chaos in semiconductor lasers with optical feedback: theory and experiment , 1992 .

[8]  Gavrielides,et al.  Lang and Kobayashi phase equation. , 1996, Physical review. A, Atomic, molecular, and optical physics.

[9]  R. Lang,et al.  External optical feedback effects on semiconductor injection laser properties , 1980 .

[10]  C. Risch,et al.  Self‐pulsation in the output intensity and spectrum of GaAs‐AlGaAs cw diode lasers coupled to a frequency‐selective external optical cavity , 1977 .

[11]  Bjarne Tromborg,et al.  Nonlinear dynamics and spectral behavior for an external cavity laser , 1986 .

[12]  D. Lenstra,et al.  Coherence collapse in single-mode semiconductor lasers due to optical feedback , 1985, IEEE Journal of Quantum Electronics.