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    • 59. 发明申请
    • VERY LARGE MODE SLAB-COUPLED OPTICAL WAVEGUIDE LASER AND AMPLIFIER
    • 非常大模式板式耦合光波导激光器和放大器
    • WO2011096973A9
    • 2011-11-10
    • PCT/US2010056775
    • 2010-11-16
    • MASSASHUSETTS INST OF TECHNOLOGYHUANG ROBIN KDONNELLY JOSEPH P
    • HUANG ROBIN KDONNELLY JOSEPH P
    • H01S5/20H01S5/343
    • H01S5/2231H01S5/0425H01S5/0655H01S5/2004H01S5/2009H01S5/3211H01S2301/18
    • A very large mode (VLM) slab-coupled optical waveguide laser (SCOWL) is provided that includes an upper waveguide region as part of the waveguide for guiding the laser mode. The upper waveguide region is positioned in the interior regions of the VLM SCOWL. A lower waveguide region also is part of the waveguide that guides the laser mode. The lower waveguide region is positioned in an area underneath the upper waveguide region. An active region is positioned between the upper waveguide region and the lower waveguide region. The active region is arranged so etching into the VLM SCOWL is permitted to define one or more ridge structures leaving the active region unetched. One or more mode control barrier layers are positioned between said upper waveguide region and said lower waveguide region. The one or more mode control barrier layers control the fundamental mode profile and prevent mode collapse of the laser mode. The mode control barrier layers also block carrier leakage from the active region. These layers are essential to obtaining VLM SCO WLs.
    • 提供了非常大模式(VLM)平板耦合光波导激光器(SCWLL),其包括作为用于引导激光模式的波导的一部分的上部波导区域。 上波导区位于VLM SCOWL的内部区域。 下波导区域也是引导激光模式的波导的一部分。 下波导区域位于上波导区域下方的区域中。 有源区位于上波导区和下波导区之间。 有源区的排列使蚀刻进入VLM SCOWL允许限定一个或多个脊结构,使有源区未腐蚀。 一个或多个模式控制阻挡层位于所述上波导区域和所述下波导区域之间。 一个或多个模式控制屏障层控制基本模式配置文件并防止激光模式的模式崩溃。 模式控制阻挡层还阻挡来自有源区域的载流子泄漏。 这些层对获得VLM SCO WL很重要。