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    • 8. 发明授权
    • Assembly of VCSEL light source and VCSEL optical detector
    • VCSEL光源和VCSEL光检测器的组装
    • US5648979A
    • 1997-07-15
    • US581259
    • 1995-12-29
    • Jong-kuk MunYong-hee LeeEun-kyung LeeKyung-ho Ha
    • Jong-kuk MunYong-hee LeeEun-kyung LeeKyung-ho Ha
    • H01L33/00H01S5/026H01S5/183H01S3/19H01L27/15H01S3/08
    • H01S5/0264H01S5/1078H01S5/183
    • There is provided an assembly of a light source and an optical detector, each using a vertical cavity surface emitting laser (VCSEL). To control light emission of the VCSEL light source, spontaneous light emitted laterally therefrom is converted into an electrical signal. The optical detector for monitoring light is provided around the light source to supply the feedback electrical signal. The inner surface facing the light source of the optical detector is circular to absorb the spontaneous light and the outer surface thereof is polygonal having a plurality of peaks and valleys. Therefore, most of spontaneous light absorbed in the optical detector is reflected within, not penetrating the outer surface thereof, thereby extending the path of the spontaneous light in the optical detector and increasing the light intensity converted into an electrical signal.
    • 提供了一种光源和光学检测器的组件,每个使用垂直腔表面发射激光器(VCSEL)。 为了控制VCSEL光源的发光,将其侧向发射的自发光转换成电信号。 在光源周围设置用于监视光的光检测器,以提供反馈电信号。 面向光学检测器的光源的内表面是圆形的以吸收自发光,并且其外表面是具有多个峰和谷的多边形。 因此,在光检测器中吸收的大部分自发光被反射到内部,不会穿透其外表面,从而延长光学检测器中自发光的路径,并增加转换成电信号的光强度。