Optical module

Abstract

The invention provides an optical module. The optical module comprises a base, a support assembly, a shielding assembly, an optical device and an optical fiber adapter, the optical device is connectedwith the optical fiber adapter, the support assembly is made of a non-metallic material and comprises a first support and a second support, the first support is arranged on the base, a chuck arrangedon the optical fiber adapter is arranged in an accommodating chamber formed by enclosure of the first support and the second support, the shielding assembly is made of a metallic material and comprises a first shielding sleeve and a second shielding sleeve, the first shielding sleeve is connected with the first support, and the second shielding sleeve is connected with the second support. After the support assembly is fixedly arranged on the base, the shielding assembly is arranged on the support assembly for supporting the optical fiber adapter to enable the shielding assembly to be stably connected in the optical module, short circuit caused by contact between the optical fiber adapter and the shielding assembly due to instable fixing is prevented, the electromagnetic shielding performance in the optical module is guaranteed, and the transmission stability of optical signals of the optical module is improved.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an optical module. Background technique [0002] With the improvement of the performance of the optical module, it is required that the optical device inside the optical module and the optical port of the optical fiber plug in the optical module are electromagnetically shielded to prevent the electromagnetic signal emitted by the optical device from being emitted to the outside of the optical module, thereby affecting the optical fiber. The transmission quality of the communication. See figure 1 As shown, at present, a shielding plate 30 is usually provided between the claw 10 for fixing the optical device and the optical device 20, the shielding plate 30 abuts on the bracket 40, and the clamping of the claw 10 and the optical device 20 realizes the shielding plate 30 in the length direction of the optical module (see figure 1 In the direction A), the shielding p...

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Problems solved by technology

However, there are deficiencies in this shielding method. On the one hand, there is a gap between the shielding plate 30 and the claw 10, which cannot be closely attached to the surface of the claw 10, so that the electromagnetic signal passes through the gap between the shielding plate 30 and the claw 10. On the other hand, being clamped in the bracket, the fixation between the shielding plate 20 and the bracket 10 is not firm, so that the shielding plate 30 is in the length direction of the optical module (see figure 1 There is an active space in the middle A direction), and then the shielding plate 30 is in contact with the metal optical device 20 so that a short circuit occurs, which will directly affect the signal transmission performance of the optical module

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