Numerical analysis of the feedback regimes for a single-mode semiconductor laser with external feedback

The effect of external feedback on a single-mode semiconductor laser is estimated by a numerical solution of the nonlinear rate equations. The analysis yields an excellent description of published experimental results. It is found that the lasing mode with the minimum linewidth is most stable rather than the mode with minimum threshold gain. The transition to the coherence-collapse regime is of particular interest. It usually occurs for feedback fractions approximately=10/sup -4/, but it can be shifted to considerably larger feedback levels either by increasing the emitted optical power or the laser length or by decreasing the linewidth enhancement factor alpha . >

[1]  R. O. Miles,et al.  Spectral characteristics of semiconductor lasers with optical feedback , 1982 .

[2]  A. Chraplyvy,et al.  Regimes of feedback effects in 1.5-µm distributed feedback lasers , 1986 .

[3]  C. Henry.  Phase noise in semiconductor lasers , 1986 .

[4]  Minimum bit rate of DPSK transmission for semiconductor laser with a long external cavity and strong linewidth reduction , 1987 .

[5]  Govind P. Agrawal,et al.  Line narrowing in a single-mode injection laser due to external optical feedback , 1984 .

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

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

[8]  Klaus Petermann,et al.  Noise analysis of injection-locked semiconductor injection lasers , 1986 .

[9]  R. Tucker,et al.  Linewidth characteristics of fiber‐extended‐cavity distributed‐feedback lasers , 1986 .

[10]  C. Henry.  Theory of spontaneous emission noise in open resonators and its application to lasers and optical amplifiers , 1986 .

[11]  Paolo Spano,et al.  Theory of noise in semiconductor lasers in the presence of optical feedback , 1984 .

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

[13]  Charles Howard Henry,et al.  Instability of semiconductor lasers due to optical feedback from distant reflectors , 1986 .