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Soft Mating Technology: The Solution to MPO Fiber End-Face Wear
Published Time:
10 Jun,2026
Fiber end-face wear has long been a notorious issue in the MPO industry. In demanding applications such as data centers, telecommunications networks, and optical transceiver testing, fiber end-face contamination is virtually unavoidable.
Fiber end-face wear has long been a notorious issue in the MPO industry. In demanding applications such as data centers, telecommunications networks, and optical transceiver testing, fiber end-face contamination is virtually unavoidable.
Contaminated end-faces can significantly increase insertion loss and reflectance, degrade signal performance, and, in the most severe cases, permanently scratch the mating fiber, leading to costly connector replacement and system downtime.
To eliminate this risk, Arrayed Corporation developed the MJC2.0 fiber optic connector featuring proprietary Soft Mating Technology—a breakthrough innovation designed to protect fiber end-faces, extend connector lifespan, and ensure reliable optical performance.
1). Why traditional MPO is more vulnerable to end-face contamination?
As shown in the figure, when the stainless-steel guide pin of the MPO fiber connector is about to be inserted into the plastic ferrule’s guide pin hole, the MT ferrule must shift horizontally to align the guide pin with the hole. However, the spring applies a constant and significant pressure on the MT ferrule, making horizontal movement difficult. As a result, the guide pin must exert large force to fit into the hole, causing rapid wear of the guide pin hole and a corresponding decline in connector performance. This mechanical design flaw in MPO fiber optic connectors has existed for nearly 30 years.
2). How soft-mating is achieved by MJC2.0?
The MJC 2.0 fiber optic connector is an improved version of the MPO connector. It features an internal slider that controls the elastic force of the spring. The slider has two positions—front and back—corresponding to the relaxed and tensioned states of the spring, respectively. When the spring is relaxed, the MT ferrule is in a suspended state, allowing flexible lateral movement. This design greatly reduces the risk of damage to the guide pin hole during guide pin insertion. Once the guide pin is fully inserted into the hole, the spring is compressed to provide the required mating force.
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