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本文叙述带有预放的光探测器部件的原理和结构。其可用在各种光接收机中,完成光电转换功能。考虑到整机设计者的需要,我们参照美国贝尔实验室的类似产品,名日:“Optical Detector Package”,型号为Lab234 M4833。使用我所新近研制成功的低噪声拉通型APD,制成了这一光探测器部件,其技术指标接近国外产品。本部件样品曾在一九三四所的二次群系统上试验,当BER=10~(-9)时,灵敏度可作到-55dBm。
This article describes the principle and structure of a pre-placed photodetector component. It can be used in a variety of optical receiver to complete the photoelectric conversion function. Taking into account the needs of the machine designer, we refer to a similar product in the United States Bell Labs, the name day: “Optical Detector Package”, model Lab234 M4833. Using my newly developed low-noise pull-through APD, this photodetector component was manufactured with technical specifications close to those of foreign products. The sample of this part has been tested on the 1934 quadratic system. When BER = 10 ~ (-9), the sensitivity can be -55dBm.