N+1 optical path protection optical switch module

Abstract

The invention discloses an N+1 optical path protection optical switch module, which comprises a bottom box, branch input optical fiber collimators, branch output optical fiber collimators, a common output optical fiber collimator and an extension output optical fiber collimator. The N+1 optical path protection optical switch module is characterized in that a plurality of collimator through holes are arranged in the side walls of the bottom box at the same level, and the branch input optical fiber collimators, the branch output optical fiber collimators, the common output optical fiber collimator and the extension output optical fiber collimator are respectively and fixedly connected with the collimator through holes; and a plurality of relays with a lever respectively are arranged in the inner chamber of the box body, the electrical control pins of the relays are arranged on a circuit board in the bottom box and are led out through sockets which are installed on the side parts of the bottom box, and a right-angle prism is arranged at the rear end of the lever of each relay. The N+1 optical path protection optical switch module has the advantages that the needed components are greatly reduced, the components are arranged in order, the structure is compact, the size is small, the response speed is greatly improved and the switching time is reduced; and the channel crosstalk is reduced and the insertion loss is decreased.

Description

technical field [0001] The invention relates to the fields of optical fiber communication and optical fiber sensing, in particular to an N+1 optical path protection optical switch module. Background technique [0002] N+1 optical path protection optical switch module is a device with optical path backup protection function, which is composed of N direct path routing and 1 path protection routing, and is widely used in optical line protection and equipment protection. Any one of the N routes can be switched to the protection path to play a backup protection role. [0003] N+1 optical path protection optical switch module can be divided into 2+1 optical path protection optical switch module, 4+1 optical path protection optical switch module, 8+1 optical path protection optical switch module, 124+1 optical path protection optical switch module according to the number of its transmission channels Optical switch modules....etc. The core of this module is a 1×N optical switch. T...

AI Technical Summary

Problems solved by technology

The traditional optical switch composed of the above-mentioned cascading method is not only bulky and loose in structure, resulting in large insertion loss, high channel crosstalk, and difficulty in improving the transmission optical power; but also needs to simultaneously control all 1× 2 Optical switches can only be realized by switching control, so the response speed is slow, the switching time is long, and the stability is relatively poor; in addition, due to the large number of components used and the complicated manufacturing process, mass production cannot be realized and the production efficiency is low

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