Optical semiconductor component with deep ridged waveguide
    5.
    发明授权
    Optical semiconductor component with deep ridged waveguide 失效
    具有深脊波导的光学半导体元件

    公开(公告)号:US5933562A

    公开(公告)日:1999-08-03

    申请号:US29195

    申请日:1998-05-19

    摘要: For use in digital optical telecommunication systems, optical semiconductor components are shown having a transition region for the expansion of the mode field of a light wave in order to reduce losses when coupling to an optical fiber or an optical waveguide of a supporting plate. An optical semiconductor component contains a deep ridged waveguide (RIDGE) with a cover layer (DS) disposed on a substrate (SUB.) The ridged waveguide (RIDGE) has a first (MQW) and second (BULK) waveguide cores, these being separated by a separating layer (SEP). The thickness of this separating layer increases in a transition region (UB1) along a longitudinal direction (L) of the ridged waveguide (RIDGE), thus increasing the vertical distance between the two waveguide centers (MQW, BULK).

    摘要翻译: PCT No.PCT / EP97 / 03584 371日期1998年5月19日 102(e)日期1998年5月19日PCT提交1997年6月26日PCT公布。 公开号WO98 / 00738 日期1998年1月8日为了在数字光通信系统中使用,示出了具有用于扩展光波模场的过渡区域的光学半导体部件,以便在耦合到光纤或光波导的光波导时减少损耗 支撑板 光学半导体部件包含具有设置在基板(SUB)上的覆盖层(DS))的深脊状波导(RIDGE)。脊状波导(RIDGE)具有第一(MQW)和第二(BULK)波导芯,这些分离 通过分离层(SEP)。 沿着脊状波导(RIDGE)的纵向(L)的过渡区域(UB1),该分离层的厚度增加,从而增加了两个波导中心(MQW,BULK)之间的垂直距离。

    Tunable semiconductor laser
    7.
    发明授权
    Tunable semiconductor laser 失效
    可调谐半导体激光器

    公开(公告)号:US5319667A

    公开(公告)日:1994-06-07

    申请号:US35918

    申请日:1993-03-22

    摘要: An interferometric semiconductor laser includes a cavity in the form of a Y and at east three individually actuatable active segments. A central segment couples together the individually actuatable active segments. The central segment is an active or passive segment that acts as a beam divider. The arrangement of the segments forms two resonator paths which contain at least one common active segment. At least one resonator path includes an active segment that does not belong to the other resonator path. In the absence of, or with the same actuation of the active segments, the optical path length of one resonator path differs from the optical path length of the other resonator path.

    摘要翻译: 干涉式半导体激光器包括Y形式的空腔和东部三个可单独致动的活动段。 中央段将可单独致动的活动段连接在一起。 中心段是作为分束器的有源或无源段。 段的排列形成两个共振器路径,其包含至少一个共同的有效段。 至少一个谐振器路径包括不属于另一谐振器路径的有源段。 在不存在或者以相同的激活有源段的情况下,一个谐振器路径的光路长度与另一谐振器路径的光路长度不同。