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    • 1. 发明授权
    • Semiconductor laser device and method for manufacturing the same
    • 半导体激光装置及其制造方法
    • US06876002B2
    • 2005-04-05
    • US10129549
    • 2001-07-03
    • Mitsuhiro MatsumotoFumihiro KonushiShinichi Kawato
    • Mitsuhiro MatsumotoFumihiro KonushiShinichi Kawato
    • H01S5/16H01S5/223H01S5/343H01I27/15
    • H01S5/16H01S5/162H01S5/168H01S5/2231
    • A semiconductor laser element includes, on a substrate, at least a first conductive type first clad layer, an active layer, a second conductive type second clad layer, a current block layer having a stripe-shaped deficient portion extending in a direction of a resonator, a second conductive type third clad layer buried in the stripe-shaped deficient portion of the current block layer and a second conductive type protection layer provided on the third clad layer. The active layer includes at least a window region adjacent to its one end surface and an internal region having a quantum well structure, and a portion opposite to the internal region is irradiated with an ionized atom from a surface of a layer arranged on the second conductive type second clad layer side and thereafter subjected to heat treatment to form the window region. A peak wavelength λw of photoluminescence from the window region of the active layer has a relation of: λw≦λi−5 nm with respect to a peak wavelength λi of photoluminescence from the internal region of the active layer, and a half-width of the photoluminescence from the window region is narrower than a half-width of the photoluminescence from the internal region.
    • 半导体激光元件在基板上包括至少第一导电型第一覆盖层,有源层,第二导电型第二覆盖层,具有在谐振器的方向上延伸的条状缺陷部的电流阻挡层 埋置在当前阻挡层的条形缺陷部分中的第二导电型第三覆盖层和设置在第三覆盖层上的第二导电型保护层。 活性层至少包括与其一个端面相邻的窗口区域和具有量子阱结构的内部区域,并且与内部区域相反的部分被照射来自布置在第二导电层上的层的表面的电离原子 然后进行热处理以形成窗口区域。 来自有源层的窗口区域的光致发光的峰值波长长度与来自有源层的内部区域的光致发光的峰值波长范围有关,并且来自窗口区域的光致发光的半峰宽是 窄于来自内部区域的光致发光的半宽度。