Mechanical Optical Switch vs. MEMS Optical Switch

In Optical fiber communication system, optical switch (OS) is mainly used to realize the physical switching of optical signal or other logical operation in optical path, and is often used as the key device of optical cross connection (OXC) technology to switch optical path.

The optical switch has one or more selectable transmission windows, which can be divided into various port configurations such as 2 x 2, 1 x N, M x N. Optical switch is widely used in optical fiber communication system with varied implementation techniques, including mechanical optical switch, thermal optical switch, acousto optical switch, electro optical switch, magneto optical switch, liquid crystal optical switch and MEMS optical switch, etc. Among them, mechanical optical switch and MEMS optical switch are two widely used optical switches at present.

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