Suppression of external cavity modes in DFB lasers with a high endurance against optical feedback

@article{Kurosaki1994SuppressionOE,
  title={Suppression of external cavity modes in DFB lasers with a high endurance against optical feedback},
  author={Takeshi Kurosaki and Takuo Hirono and Masao Fukuda},
  journal={IEEE Photonics Technology Letters},
  year={1994},
  volume={6},
  pages={900-902}
}
This paper clarifies that the external cavity modes deform optical output response in the DFB lasers by enhancing the relaxation oscillation under NRZ modulation. It is shown that a DFB laser with an asymmetric structure in reflectivity of facets and in position of a /spl lambda//4 phase shift can suppress the influence of the external cavity modes.<<ETX>>