Envelope gain saturation in distributed-feedback lasers.

  title={Envelope gain saturation in distributed-feedback lasers.},
  author={K. O. Hill and Ayumi Watanabe},
  journal={Applied optics},
  volume={14 4},
Gain saturation is treated by formulating a model that accounts for the dependence of gain on irradiance level in distributed-feedback lasers. Solutions of the coupled-mode equations of the model are obtained numerically and are presented for both overcoupled and undercoupled laser structures (KL in the 10(-13)-10 range). Parasitic losses that are distributed uniformly within the structure are found to influence the output power characteristics of distributed-feedback lasers. Also the optimum… CONTINUE READING