We demonstrate an all-fiber polarization rotator optically activated based on polymer-azobenzene complexes via
guest-host system. The azo compound (Disperse Red 1) was incorporated in two polymeric matrices (PMMA and
PDMS), which were used as coatings for tapered optical fibers and fused tapered couplers. These devices were then
incorporated in a fiber ring laser cavity and the optically induced birefringence was monitored via changes in the
polarization state of the fiber laser output and emission spectra. We present experimental results showing that this
polymer coated devices could provide a simple means for developing optically controlled polarization switches.
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