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Context 1
... the PCF core mostly affects the birefringence and dispersion characteristics [23][24][25][26]. As a result, the diameters of the air- holes in the second ring are kept as large as possible to obtain higher negative dispersion. Additionally, the size of air-holes in third ring has been tuned to match the RDS for operating wavelength of 1550 nm. Fig. 1 shows the air-hole distribution of the proposed undulate cladding PCF ...
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... to get a flat dispersion but comparatively larger second ring air-hole diameter for higher negative dispersion coefficient. Fig. 8 is showing the chromatic dispersion curve of the proposed undulate design. This design is providing a negative dispersion coefficient of -260 ps/(nm.km) with flat range of 290 nm for optimum design parameters. Fig. 9, Fig. 10 and Fig. 11 are showing the effects of pitch variation, air-hole diameter of first ring d 1 variation and the air-hole diameter of second ring d 2 variation on dispersion behavior respectively. It is seen that the peak value of the negative dispersion increases with the decreasing value of the pitch. Similarly due to the decrease of ...
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... dispersion but comparatively larger second ring air-hole diameter for higher negative dispersion coefficient. Fig. 8 is showing the chromatic dispersion curve of the proposed undulate design. This design is providing a negative dispersion coefficient of -260 ps/(nm.km) with flat range of 290 nm for optimum design parameters. Fig. 9, Fig. 10 and Fig. 11 are showing the effects of pitch variation, air-hole diameter of first ring d 1 variation and the air-hole diameter of second ring d 2 variation on dispersion behavior respectively. It is seen that the peak value of the negative dispersion increases with the decreasing value of the pitch. Similarly due to the decrease of diameter of ...
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... variation and the air-hole diameter of second ring d 2 variation on dispersion behavior respectively. It is seen that the peak value of the negative dispersion increases with the decreasing value of the pitch. Similarly due to the decrease of diameter of the air-holes of first and second rings the peak value of negative dispersion also decreases. Fig. 11 also shows that the second ring air-hole diameter has a huge impact on dispersion behaviour such as on its amplitude and ...
