Multi-path parallel optical signal transmission module

Abstract

The invention discloses a multi-path parallel optical signal transmission module, and belongs to the field of optical modules. The multi-path parallel optical signal transmission module comprises an optical transmission assembly, circuit boards, a flexible board and a connector. The circuit boards comprise a first circuit board and a second circuit board, and the first circuit board and the second circuit board are vertically and symmetrically arranged along a vertical direction and are connected through the flexible board; a bonding pad is arranged on the first circuit board, and the connector is connected with the bonding pad; the first circuit board is provided with a substrate, the optical transmission assembly is arranged on the substrate, the substrate is provided with a connecting contact, and the connector is connected with the connecting contact. According to the multi-path parallel optical signal transmission module, the flexible board is connected to the two circuit boards, so that the size of the module is reduced, and a more complicated circuit is realized in a smaller space. The micro contact connector is adopted, so that I / O electrical connection with higher density is realized. The optical transmission assembly is separated from the circuit part and is made into an independent optical transmitting or receiving assembly, so that the coupling and testing process of the optical transmitting assembly can be greatly simplified, and the yield is effectively improved.

Description

technical field [0001] The invention relates to the field of optical modules, in particular to a multi-channel parallel optical signal transmission module. Background technique [0002] In industrial Internet and power network control, a large number of control or sensing signals need to be transmitted. In order to reduce system interference, optimize signal transmission quality, and extend signal transmission distance, optical fibers are used in many cases instead of cables to transmit signals. However, the format of such signals is usually a signal without "0" and "1" balance encoding, or even a DC control signal. This signal format is not suitable for conventional photoelectric conversion modules (requires DC balance coding), so AVAGO or Toshiba is usually used to design and develop a fiber optic terminal module for low-speed signal transmission to solve the above problems. This fiber optic terminal module For: HFBR1444 single transmitter module + HFBR2412 single receive...

AI Technical Summary

Problems solved by technology

However, in many occasions of industrial Internet or power control, a large number of signals need to be transmitted in a limited space, and the solution of optical fiber terminal can only provide 1-to-1 single-channel transmission. Transmitting and receiving optical fiber terminals and optical fibers to realize transmission

This has caused many adverse effects on system complexity, volume, power consumption, etc.

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