Optical module

Abstract

The invention provides an optical module. The optical module comprises an upper cover, a base, a transmitting optical port and a receiving optical port, wherein a first clamping groove is formed in the inner side of the upper cover, and a second clamping groove is formed in the inner side of the base; the distance between the middle pat of the first clamping groove and the bottom surface of the upper cover is higher than the distances between two ends of the first clamping groove and the bottom surface of the upper cover. The optical module also comprises a microwave absorption gasket, whereina first through hole and a second through hole are formed in the microwave absorption gasket, the transmitting optical port passes through the first through hole, and the receiving optical port passes through the second through hole; the upper edge of the microwave absorption gasket is arranged in the first clamping groove, the lower edge of the microwave absorption gasket is arranged in the second clamping groove, and the first clamping groove and the second clamping groove are extruded towards the directions of the transmitting optical port and the receiving optical port respectively and are used for sealing the edge of the microwave absorption gasket. According to the optical module provided by the invention, radiation energy inside the optical module is prevented from leaking to the outside of the module through gaps between the transmitting optical port and the upper cover and between the receiving optical port and the base, the effect of shielding the radiation energy inside theoptical module is achieved, and the EMI performance of the optical module product is optimized.

Description

technical field [0001] The present application relates to the technical field of optical communication equipment, and in particular to an optical module. Background technique [0002] Optical module is an important communication interface component of optical communication technology, widely used in switches, routers, data centers and other equipment. Specifically, the optical module is used for photoelectric conversion, the transmitting end of the optical module converts the electrical signal into an optical signal and transmits it through the optical fiber, and the receiving end of the optical module converts the received optical signal into an electrical signal. However, with the development of the optical communication industry, it has always been accompanied by the discussion and evolution of issues such as optoelectronic performance indicators, reliability, EMI (electromagnetic radiation compatibility), and ESD (electrostatic protection). While optical communication eq...

AI Technical Summary

Problems solved by technology

[0004] However, in specific operation and use, when the electromagnetic wave radiation is too strong, the absorbing material surrounding the electronic components cannot completely guarantee the absorption of the electromagnetic wave generated by it, for example, the electromagnetic wave penetrates the absorbing material and radiates into the cavity of the optical module

However, due to the surface process requirements and structural design requirements of the upper cover 1 and the base 2, there is a gap between the emitting light port 4 and the receiving light port 5 and the upper cover 1 and the base 2, and the electromagnetic waves radiated into the cavity of the optical module pass through the emitting light port 4 and the gap between the receiving optical port 5 and the upper cover 1 and the base 2 radiate out, causing electromagnetic interference to the outside world, which will cause a negative impact on the optical module

Images