Multi-path parallel optical assembly packaging structure and multi-path parallel optical assembly

Abstract

The present invention discloses a multi-path parallel optical assembly packaging structure and a multi-path parallel optical assembly having the packaging structure. The packaging structure comprisesa top plate, an intermediate shell and a bottom plate, the intermediate shell comprises an annular frame and a tail tube, the annular frame is used to form an airtight cavity with the top plate and the bottom plate, and the tail tube and the annular frame are molded integrally and are communicated with the airtight cavity. The bottom plate comprises a substrate and a metal plate, the substrate isequipped with an internal wiring terminal located inside the airtight cavity, a chip loading hole and an external wiring terminal located outside the airtight cavity, and the metal plate is soldered on the bottom surface of the substrate and seals the chip loading hole, wherein after an optical joint at one end of a multi-path parallel optical fiber ribbon penetrates the tail tube and enters the annular frame, the tail tube and the multi-path parallel optical fiber ribbon are sealed via the solders. According to the present invention, via the airtight cavity, the key components are sealed effectively, by a mode that the tail tube is sealed by the solders, the large scale of a product is avoided while the optical signals are transmitted reliably, and the market demands are conducive to being satisfied.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an improvement of a package structure of a multi-channel parallel optical component. Background technique [0002] With the promotion and in-depth application of optical communication, the demand for photoelectric conversion devices is increasing day by day, and the market demand is also developing towards the requirements of miniaturization, multi-channel, high air tightness, and high reliability. The key components in the photoelectric conversion device are sealed in the market demand of the housing. [0003] For this reason, there are two main ways for the optical signal to pass through the sealed housing: 1. The housing comes with a sealed glass window, the external metal sleeve is welded and fixed with the housing through high-precision alignment, and the external optical fiber is inserted into the metal The sleeve can transmit the optical signal inside; 2. In...

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Problems solved by technology

[0004] At present, the two methods are more suitable for the coaxial packaging scheme of a single optical fiber. For multi-channel transmission optical modules (that is, multi-channel parallel optical modules), the housing with glass optical windows is limited by the inner and outer optical paths of the housing. It is difficult to realize the effective transmission of optical signals, and welding and assembling sealing rings on multi-channel parallel optical fiber ribbons requires greatly expanding the size of the tail pipe, which cannot meet the miniaturization requirements of the product.

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