3 paddle mechanical polarization controller is using fiber outside pressure and birefrigent effect theory. Its 3 Paddle is respectively equalλ/4、λ/2、λ/4 plate. When light wave entersλ/4 waveplate is transfer line polarization, then useλ/2 is adjust polarization direction, finally it enters toλ/4 waveplate and line polarization state is change to any polarization. Due to Birefrigent’s delay effect is come from fiber cladding, roll fiber, and wavelength. It can generate all polarization change.
Equal to λ/2、λ/4 Plate
Adjust Any Polarization
Low Insertion Loss
Easy to Roll Fiber
SM to PM Fiber System Application