Relative dispersion slope matched dispersion compensating highly birefringent spiral microstructure optical fibers using defected core

A highly birefringent dispersion compensating microstructure optical fiber (MOF) based on a modified spiral (MS)-MOF is presented that successfully compensates the dispersion covering the E- to L-communication bands ranging from 1370 to 1640 nm. It is shown theoretically that it can obtain a negative dispersion coefficient of about -221 to -424 ps/(nm . km)) over S to L bands and -327 ps/(nm . km)) at the operating wavelength of 1550 nm. The relative dispersion slope is perfectly matched to that of single-mode fiber of about 0.0036 nm(-1). Besides, the proposed MS-MOF offers high birefringence of 1.79 x 10(-2) with a large nonlinear coefficient of about 41.8 W-1 km(-1) at the operating wavelength along with two zero dispersion wavelengths at 610 and 1220 nm. Futhermore, the variation of structural parameters is also studied to evaluate the tolerance of the fabrication. (C) 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)