Modified Octagonal Photonic Crystal Fiber for Residual Dispersion Compensation over Telecommunication Bands
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A modified Octagonal Photonic Crystal Fiber (MO-PCF) is proposed and numerically investigated for the purpose of residual dispersion compensation in the optical transmission link. The results show that the proposed fiber with optimized parameters exhibits ultra-flattened negative dispersion over a 300 nm band from 1380 nm to 1680 nm with an average chromatic dispersion of -506 ps/(nm·km) and an absolute variation of 11.3 ps/(nm·km). In addition to large negative dispersion, the proposed MO-PCF also exhibits high birefringence in the order of 0.0207 at the wavelength of 1550 nm. The proposed MO-PCF can be advantageously used especially for residual chromatic dispersion compensation in the wavelength-division-multiplexing optical fiber transmission system. The proposed fiber is easy to fabricate and is tolerant to manufacturing imperfections.
KeywordsFinite element method, negative flat dispersion, residual dispersion compensation, high birefringence, photonic crystal fiber.
Document typePeer reviewed
Document versionFinal PDF
SourceRadioengineering. 2018 vol. 27, č. 1, s. 10-15. ISSN 1210-2512
- 2018/1