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Investigations of mode control in proton-implanted and oxide-confined VCSELs using PBGs: modelling and experiment

Research output: ResearchConference contribution

Original languageEnglish
Title of host publicationInternational Conference on Transparent Optical Networks
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Pages330 - 333
ISBN (Print)0780383435
StatePublished - Jul 2004
Event6th International Conference on Transparent Optical Networks - Wroclaw, Poland
Duration: 4 Jul 20048 Jul 2004


Conference6th International Conference on Transparent Optical Networks


We have investigated theoretically the influence on transverse optical modes of a two-dimensional photonic crystal (PC) defect waveguide embedded into a vertical-cavity surface-emitting laser. In gain-guided structures, where the index profile is weak, the effect of the PC is efficient. In the oxide-confined structures, where the index guidance provided by the oxide is larger, this is not the case, but the efficiency of the PC can be increased by oxide in the node position. It is shown that the thermal lensing effect leads to increased sensitivity of the single-mode conditions on the current injection change.

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Conference Proceedings/Title of Journal: 6th International Conference on Transparent Optical Networks, 2004 Rose publication type: Conference contribution Sponsorship: Work supported by UK EPSRC Ultrafast Photonics Consortium Terms of use: Copyright © 2004 IEEE. Reprinted from 6th International Conference on Transparent Optical Networks, 2004. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it.


6th International Conference on Transparent Optical Networks

Duration4 Jul 20048 Jul 2004

Event: Conference

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