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    Monolithically integrated laser diode and power monitor
    5.
    发明授权
    Monolithically integrated laser diode and power monitor 有权
    单片集成激光二极管和功率监视器

    公开(公告)号：US08923101B1

    公开(公告)日：2014-12-30

    申请号：US14029052

    申请日：2013-09-17

    申请人： Seagate Technology LLC

    发明人： Karim Tatah ,  Michael Allen Seigler

    IPC分类号： G11B11/00

    CPC分类号： G11B5/455 ,  G11B5/314 ,  G11B2005/0021

    摘要： An apparatus includes a slider body, a write element, and a laser chip. The write element is disposed on the slider body and is configured to apply a magnetic field to write data on a portion of a heat-assisted magnetic recording media in response to an energizing current. The laser chip has a laser diode with an active region configured to produce light. The laser diode adapted to inject the light to the proximate the read/write element. The laser chip additionally has a photodetector The photodetector is adapted to monitor light from the laser diode. The photodetector shares a same active region as the laser diode and the laser diode and photodetector are integrated together on the same laser chip.

    摘要翻译： 一种装置包括滑块体，写入元件和激光芯片。 写入元件设置在滑块主体上，并且被配置为响应于通电电流而施加磁场以将数据写入热辅助磁记录介质的一部分上。 激光芯片具有激光二极管，其具有被配置为产生光的有源区域。 激光二极管适于将光注入到靠近读/写元件。 激光芯片还具有光电检测器。光电检测器适于监测来自激光二极管的光。 光电检测器具有与激光二极管相同的有源区域，并且激光二极管和光电检测器在相同的激光芯片上集成在一起。