Optical module

Abstract

An optical module provided by the invention comprises a circuit board, the circuit board comprises an upper surface, a middle layer and a lower surface, the upper surface is provided with an upper power supply structure, the upper power supply structure comprises a first power supply pin and a first power supply pin connecting end, the middle layer is provided with a power supply metal layer on a projection area of the upper power supply structure, and the lower surface is provided with a lower power supply structure. The lower power supply structure comprises a second power supply pin and a second power supply pin connecting end, on one hand, the area of the first power supply pin or the second power supply pin is designed to be larger than that of other pins, so that the through-current capability of a power supply signal can be improved; in the other direction, the area of the middle power supply metal layer is larger than the area of the upper power supply structure and the area of the lower power supply structure at the same time, namely the area of the middle power supply metal layer is designed to be large, so that the through-current capability of a power supply signal can be ensured, parasitic parameters and crosstalk are smaller, and the power consumption requirement of a higher-rate optical module is met.

Description

technical field [0001] The present application relates to the technical field of optical communication, and in particular to an optical module. Background technique [0002] With the development of cloud computing, mobile Internet, video and other new business and application models, the development and progress of optical communication technology has become more and more important. In optical communication technology, the optical module is a tool to realize the mutual conversion of photoelectric signals, and it is one of the key components in optical communication equipment; in the use of optical modules, the optical module is connected to the upper computer such as the optical network terminal through golden fingers, The power supply enters the circuit board through the gold finger, and the layout design of the power signal on the circuit board supplies power to each chip to ensure the normal operation of the optical module. [0003] In the existing optical module, due to...

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Problems solved by technology

[0003] In the existing optical module, due to the limited space on the circuit board, the power signal flow capacity corresponding to the gold finger is limited; and with the increase of the transmission rate of the optical module, the corresponding power consumption is getting larger and larger. The layout of the power signal cannot meet the requirements of higher rate optical modules

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