公开(公告)号：US20040008605A1

公开(公告)日：2004-01-15

申请号：US10131531

申请日：2002-04-23

申请人： Siros Technologies, Inc., a California Corporation

发明人： Robert L. Thornton ,  Douglas G. Stinson ,  Roger K. Malmhall ,  Mathew C. Bashaw

IPC分类号： G11B007/00 ,  G11B007/135 ,  G11B015/64 ,  G11B017/32

CPC分类号： H01S5/18311 ,  G11B7/122 ,  G11B7/22 ,  H01S5/02276 ,  H01S5/02284 ,  H01S5/0261 ,  H01S5/0425 ,  H01S2301/176

摘要： A near-field optical system having one or more solid state lasers and an aerodynamically shaped slider which comprise a single integrated, monolithic device fabricated from the same base semiconductor material. The monolithic optical head can be quickly and easily attached to the read arm of an optical read/write device without requiring attachment of separate laser elements, and without micropositioning or use of optical microscopy for positioning the lasers. The optical head comprising a single semiconductor substrate including a first region which defines a slider having an air bearing surface, and at least one second, laser region which defines a diode laser, with the diode laser having an emission face which is substantially co-planar with the air bearing surface. The semiconductor substrate preferably includes an active layer, a p-clad layer or reflective layer adjacent a first side of the active region, an n-clad layer or reflective layer adjacent a second side of the active layer, and an n-semiconductor layer adjacent the n-clad layer. A slider region of the semiconductor substrate includes an air bearing surface, adjacent the p-clad layer, which is aerodynamically structured and configured to define a slider. The integral lasers include a p-electrical contact adjacent to the p-clad layer and proximate to the laser emission face, and an n-electrical contact adjacent to the n-clad layer or an n-semiconductor layer. The laser mode is defined by oxidized or ion-diffusion regions associated with the p-clad layer or n-clad layer of the laser. A conductive via through the substrate allows electrical connection with the p-side contact to be achieved from the n-side of the substrate. The optical head is used in a near-field optical system with an optical medium having a phase change layer.

摘要翻译： 具有一个或多个固态激光器和空气动力学形状的滑块的近场光学系统，其包括由相同的基底半导体材料制造的单个集成的单片器件。 单片光学头可以快速且容易地附接到光学读/写设备的读取臂，而不需要附加单独的激光元件，并且不需要定位微距定位或使用光学显微镜来定位激光器。 该光学头包括单个半导体衬底，该半导体衬底包括限定具有空气支承表面的滑块的第一区域和限定二极管激光器的至少一个第二激光区域，二极管激光器具有基本共面的发射面 与空气轴承表面。 半导体衬底优选地包括有源层，邻近有源区的第一侧的p覆盖层或反射层，邻近有源层的第二侧的n包层或反射层以及邻近的n半导体层 n覆层。 半导体衬底的滑块区域包括邻近p覆盖层的空气支承表面，其空气动力学构造并构造成限定滑块。 整体激光器包括邻近p覆盖层并且靠近激光发射面的p电接触以及与n包覆层或n半导体层相邻的n电接触。 激光模式由与激光的p包覆层或n包覆层相关联的氧化或离子扩散区域限定。 通过基板的导电通孔允许从基板的n侧实现与p侧接触的电连接。 光头用于具有相变层的光学介质的近场光学系统中。