MEMS optical switches market was valued at USD 166 million in 2026 and is projected to reach USD 446 million by 2036, recording a CAGR of 10.4% during 2027–2036. Asia-Pacific was the largest region in 2026 at an estimated ~44% share. The market centers on microfabricated tilting-mirror switching modules that direct light between single-mode and multimode fibers, including 1xN fan-outs, 2×2 bypasses and MxN optical matrix configurations.