Phase response design of a polarization-maintaining fiber loop mirror for dispersion compensation

We propose a simple dispersion-compensation filter using a polarization-maintaining fiber loop mirror. Due to the fact that the proposed filter is spectrally periodic and has a relatively large dispersion, it can be used as a multichannel dispersion compensator. The measured delay characteristic agrees with the theory. The delay characteristic can be tuned by changing the power-coupling coefficient of the variable coupler in the loop mirror.