Wave-front-engineered grating mirrors for VCSELs

Luca Carletti, Radu Malureanu, Jesper Mørk, Il-Sug Chung

    Research output: Contribution to journalConference articleResearchpeer-review


    High-index-contrast grating mirrors featuring beam steering abilities for the transmitted beam as well as high reflectivity over a broad bandwidth are suggested. Gratings designed to provide control over the wave front of the transmitted beam are numerically investigated. The proposed structures are then fabricated for experimental characterization. The measurements performed show the beam steering ability of the suggested HCG designs and are also in good agreement with the theoretical predictions. General design rules to engineer these HCG structures for different applications are derived. These grating mirrors would have a significant impact on low cost laser sources fabrication, since a more efficient integration of optoelectronic modules can be achieved by avoiding expensive external lens systems.
    Original languageEnglish
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Pages (from-to)82700E
    Publication statusPublished - 2012
    EventSPIE Photonics West : High Contrast Metastructures - The Moscone Center, San Francisco, California, United States
    Duration: 21 Jan 201226 Jan 2012


    ConferenceSPIE Photonics West : High Contrast Metastructures
    LocationThe Moscone Center
    Country/TerritoryUnited States
    CitySan Francisco, California


    • Subwavelength structures
    • Vertical cavity surface emitting lasers


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