The Fiber Optic Tunable Filter is based on fiber Fabry-Perot interferometer technology. Activated by a piezoelectric transducer, the device can be tuned across the entire C + L band. It is ideal for applications in signal selection, noise rejection, and spectrum analysis. Two thermistors are mounted in the filter package for temperature monitoring.
A metal film is deposited on the fiber surface by sputtering process. Metalized fiber can be soldered into a package to achieve hermetical sealing and provide high environmentally reliable interconnection for optical devices. The metalized fiber is widely used in passive and active devices.