Fiber loop polarizers using a fused taper coupler

All-fiber polarizers using a fused taper coupler are presented. The polarizers are fabricated by constructing a fiber loop joining the output ports of a fused taper coupler. Input light splits into two linearly polarized modes which are reflected and transmitted by the polarizers, respectively. The transmitted and the reflected lights become linearly polarized. The demonstrated polarizer shows an extinction ratio of -20.0 dB.<
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