eprintid: 69693 rev_number: 12 eprint_status: archive userid: 1699 dir: disk0/00/06/96/93 datestamp: 2012-09-28 13:17:26 lastmod: 2021-09-23 07:20:34 status_changed: 2012-09-28 13:17:26 type: article metadata_visibility: show item_issues_count: 0 creators_name: Coomans, W. creators_name: Gelens, L. creators_name: Van der Sande, G. creators_name: Mezosi, G. creators_name: Sorel, M. creators_name: Danckaert, J. creators_name: Verschaffelt, G. creators_orcid: 0000-0001-8365-4496 title: Semiconductor ring lasers coupled by a single waveguide ispublished: pub divisions: 30305000 abstract: We experimentally and theoretically study the characteristics of semiconductor ring lasers bidirectionally coupled by a single bus waveguide. This configuration has, e.g., been suggested for use as an optical memory and as an optical neural network motif. The main results are that the coupling can destabilize the state in which both rings lase in the same direction, and it brings to life a state with equal powers at both outputs. These are both undesirable for optical memory operation. Although the coupling between the rings is bidirectional, the destabilization occurs due to behavior similar to an optically injected laser system. date: 2012 date_type: published id_number: 10.1063/1.4730615 uniqueid: glaseprints:2012-69693 published_online: 2012-06-22 scopus_impact: 1 scopus_cluster: 2-s2.0-84863309783 scopus_datestamp: 2013-10-26 07:44:08 wos_impact: 1 wos_cluster: WOS:000305676400014 wos_datestamp: 2013-10-25 12:42:26 full_text_status: none publication: Applied Physics Letters volume: 100 number: 25 pagerange: 251114 refereed: TRUE issn: 0003-6951 hoa_compliant: 305 hoa_date_pub: 2012-06-22 hoa_exclude: FALSE hoa_gold: FALSE citation: Coomans, W., Gelens, L., Van der Sande, G., Mezosi, G. , Sorel, M. , Danckaert, J. and Verschaffelt, G. (2012) Semiconductor ring lasers coupled by a single waveguide. Applied Physics Letters , 100(25), p. 251114. (doi: 10.1063/1.4730615 )