A tunable Fabry-Perot filter based on InP-air Bragg mirrors has been studie
d, The filter experimental performances are a resonance line width of 0.6 n
m and a tuning range of 62 nm for 14 V, The full-width at half-maximum is k
ept below 1 nm over a 40-nm tuning range. The relation between the bending
of the suspended layers during the actuation and the optical properties of
the filter are analyzed.