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| PCF characteristics and reference | Communication window and loss | CT and filtering bandwidth | Fiber length |
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| Asymmetric filter based on infiltrated PCF with gold coating [16] | 1310 nm and 434 dB/cm | 353.74 dB and 120 nm (about) | L = 1 mm |
| PCF-based filter with symmetrical gold-coated holes [17] | 1550 nm and 431.267 dB/cm | 180 dB (about) and 190 nm | L = 0.5 mm |
| High-birefringence PCF filter with gold wires [18] | 1310 nm and 40 dB/cm
1550 nm and 60 dB/cm | N/A | N/A |
| PCF-based splitter with dual plasmonic inner air holes [10] | 1310 nm and 102.6 dB/cm
1550 nm and 245.0 dB/cm | 95 dB (about) and 40 nm
200 dB (about) and 100 nm | L = 1 mm |
| Symmetry-structured PCF polarization filter [19] | 1310 nm and 231.6 dB/cm
1550 nm and 237.9 dB/cm, | 240 dB and 60 nm
197 dB and 70 nm | L = 1 mm |
| D-shaped PCF polarization filter [20] | 1310 nm and 244.9 dB/cm
1550 nm and 292.8 dB/cm | 208.4 dB and 88 nm
249.5 dB and 150 nm | L = 1 mm |
| Single-polarization PCF filter with narrow bandwidth [21] | 1310 nm and 330.75 dB/cm
1550 nm and 242.89 dB/cm | 285.642 dB and 70 nm
202.92 dB and 235 nm | L = 1 mm |
| PCF-based filter with gold film on the inner wall of two ultralarge holes [22] | 1550 nm and 569.682 dB/cm
1310 nm and 588.900 dB/cm
1550 nm and 971.330 dB/cm | 494.673 dB and 700 nm
511.491 dB and 270 nm
843.622 dB and 630 nm | L = 1 mm |
| Single polarization filter based on PCF with plasmonic layers of gold and indium tin Oxide (our work) | 1150 nm and 1319.6890 dB | 72.05 dB and 602 nm | L = 1 mm |
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