We explore the impact of excitation geometry in circular-grating DFB lasers. Strong gain localisation at the centre of the resonator leads to a substantial reduction in threshold and increase in output efficiency.

© 2005 Optical Society of America

PDF Article


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
Login to access OSA Member Subscription