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The Effect of Pitch Size on The Dispersion Profile of Photonic Crystal Fiber | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 13, Issue 3, 2008, Pages 128-135 | ||
| Author | ||
| Abdulghafoor Ibrahim Abdullah | ||
| Abstract | ||
| The effect of pitch size on the dispersion profile of photonic crystal fibers (PCFs) is studied. (7) PCFs of one ring, one missing hole and hole diameter 0.4m are investigated under the effect of the pitch size. The variation range of the pitches is (1.0 to 2.5)m. This paper shows that PCFs of pitches 1.7, 2.0, 2.3, and 2.5m offer single mode operation from the visible to infrared region and the dispersion profile tend to be near flattened over a range of wavelength (0.95 to 1.45) m. A blue shift in zero dispersion wavelengths is obtained due to the variation of the pitches. Additionally the results show a large decreasing in the confinement losses for the proposed PCF of =2.5m for fundamental mode. All the PCFs under study show lower confinement losses at the communication wavelength of 0.8m, (Ti-Sapphire) laser compared with communication wavelength of 1.5m. | ||
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