Pluggable optical filter

Abstract

The invention discloses a pluggable optical filter, which comprises a positive head front seat positioned on an incident light side and a negative head back seat spliced with the positive head front seat and positioned on an emergent light side, wherein a front seat passage passing through from front to back is formed axially in the positive head front seat; a limiting lug boss is formed on the incident light side positioned on the inner periphery of the front seat passage; a back seat passage passing through from front to back is formed axially in the negative head back seat; the inner diameter of the back seat passage is smaller than that of the front seat passage; the front seat passage and the back seat passage form a spliced integral passage after the positive head front seat is spliced with the negative head back seat; an optical filter chip component is arranged in the spliced integral passage; a spring is sleeved on the periphery of the optical filter chip component; the spring is blocked in the front seat passage; and a first ceramic sleeve is sleeved at one end of emergent light from the optical filter core component. The pluggable optical filter can completely overcome the defects of the prior art, can integrate a filtering function and a plug-and-play function to a miniaturized optical device, is simple to manufacture, has a low cost and reliable quality, and is convenient for an engineer to operate and mount.

Description

technical field [0001] The invention relates to an optical filter, in particular to a pluggable optical filter. Background technique [0002] With the development of optical fiber communication technology, especially the development of optical fiber access network FTTH and PON network, miniaturization, low cost, online plug and play are the development direction of optical devices, especially some optical devices used for FTTB and CATV , such as blocking devices for CATV signals, reflection terminals for OTDR signals in FTTH line monitoring, etc., due to the large amount of use, there are more cost considerations, convenience of installation and operation, and miniaturization of volume. high demands. [0003] Conventional dielectric film filters generally have several disadvantages: [0004] 1. The structure of optical fiber collimator is adopted, and the cost is relatively high; [0005] 2. The conventional structure can only be used as a tailed fiber type, and it is tro...

AI Technical Summary

Problems solved by technology

[0004] 1. The structure of optical fiber collimator is adopted, and the cost is relatively high;

[0005] 2. The conventional structure can only be used as a tailed fiber type, and it is troublesome for engineers to operate due to the need for optical fiber operation;

[0006] Even with an adapter structure, because the adapter and the filter are separated, they need to be spliced ​​together through optical fibers when they are assembled together, and the volume will be large, which is not suitable for the application of the access network.

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