Polarization control (PC),which manipulates the polarization state of the photon,is one of the key issues in the field of optical communications and sensing.[1-3] Especially in optical fiber communication,as the data rate rises up to 40 Gbits/s and even 100 Gbits/s,polarization problems of the fiber system such as the polarization mode dispersion (PMD) become very serious,which greatly stimulates the development of PC technology.[4,5] To control the photonic polarization state,there are a lot of schemes,for example,directly utilizing the optical fiber by introducing bending,[2] squeezing,[3,6,7] and Faraday rotation,[s] or using the electro-optic crystals,[9] photonic bandgap fiber,[10] and liquid crystals.[11] Among them,the fiber-based PC (FPC) schemes are relatively practical and widely used because of their low insertion loss and low power penalty,which are particularly required in the optical trunk line system,and have attracted much more attention in recent years.