Passive coupling small-size photoelectric detector

Abstract

The invention discloses a passive coupling small-size photoelectric detector, and particularly relates to the technical field of semiconductor detection products, the passive coupling small-size photoelectric detector comprises a semiconductor photoelectric detector, and a packaging assembly is arranged on the semiconductor photoelectric detector; the packaging assembly comprises a packaging piecebody; a first cavity, a T-shaped connecting groove and a second cavity are formed in the inner side of the packaging piece body, limiting sliding grooves are formed in the top and the bottom of the packaging piece body, and a first semicircular clamping block and a second semicircular clamping block are arranged in the first cavity. According to the invention, the semiconductor photoelectric detector with a planar structure is adopted; the size of the photosensitive surface is reasonably designed; it is ensured that the dark current of the device is minimized and the low noise requirements oflow optical power detection is met, the semiconductor photoelectric detector with low dark current, high response and stable performance is designed, the semiconductor photoelectric detector is clamped and fixed in the first cavity, passive coupling is used in the production process, the production efficiency is greatly improved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of semiconductor detection products, and more specifically, the invention relates to a passively coupled small-size photodetector. Background technique [0002] The principle of the photodetector is that the conductivity of the irradiated material changes due to radiation. The photodetector is widely used in various fields of the military and the national economy. It is mainly used for ray measurement and detection in the visible or near-infrared band, industrial automatic control, Photometry, etc. In the infrared band, it is mainly used in missile guidance, infrared thermal imaging, infrared remote sensing, etc. Another application of photoconductor is to use it as the target surface of the camera tube. In order to avoid image blur caused by the diffusion of photogenerated carriers, continuous film The target surface is made of high-resistance polycrystalline materials, and other materials can be inlaid wit...

AI Technical Summary

Problems solved by technology

[0003] At present, the development and production of photodetectors for optoelectronic devices are generally based on active coupling, that is, the laser is used as the light source output, coupled to the PD detector through the optical fiber alignment, and then the optical fiber and the PD detector are fixed. During the coupling alignment process, the operation is inconvenient. , requires a lot of manpower and material resources, which increases the production cost

Images