1×1 polarization-maintaining mechanical optical switch with broad wavelength coverage of 1260–1650 nm. It boasts excellent polarization-maintaining performance, high extinction ratio, low insertion loss and fast switching speed. Supported by 3 V / 5 V low-voltage drive, compact packaging and wide operating temperature range, the switch is designed for on-off control of polarization-sensitive optical paths. Application Scenarios: OADM fiber monitoring, optical network protection, test & measurement equipment, and optical routing switching.