Abstract

We present a new theory that can be applied to predetermine the value of cut-off external optical feedback (EOF) in terms of cut-off external reflectivity (rcut-off) for a semiconductor laser source subjected to incoherent EOF. rcut-off is defined as the value of external reflectivity around which the turn-on time delay (ton) of semiconductor laser diode (SLD) will exceed the bit time interval of the injected current pulse and result in shutdown-like/inoperable case. An accurate analytical model of rcut-off is derived and presented in terms of laser cavity parameters, injection current, and biasing ratio. The benefit of this study is that the designer can predetermine the requirements that should be taken into account when considering the SLD in an optical communication system in order to avoid an inoperable case due to incoherent EOF. In addition, the presented theory can be applied to develop an effective method that can be used to control, i.e., shutdown/restart, the laser source remotely. This can be performed by attacking the laser source with incoherent EOF from a distance and tuning the external reflectivity around the value of rcut-off.

© 2010 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Rate-equation theory of a feedback insensitive unidirectional semiconductor ring laser

T. T. M. van Schaijk, D. Lenstra, E. A. J. M. Bente, and K. A. Williams
Opt. Express 26(10) 13361-13369 (2018)

Influence of external optical feedback on the alpha factor of semiconductor lasers

Yanguang Yu and Jiangtao Xi
Opt. Lett. 38(11) 1781-1783 (2013)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (45)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription