We demonstrate theoretically and experimentally a fiber optical circulator with a rotating ring interferometer based on the Sagnac effect. A ratio of 104:1 in light transmittance in the forward and… Click to show full abstract
We demonstrate theoretically and experimentally a fiber optical circulator with a rotating ring interferometer based on the Sagnac effect. A ratio of 104:1 in light transmittance in the forward and backward directions between the same input/output ports of the circulator was experimentally demonstrated. The optical isolation in the backward direction was 24 dB.
               
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