Chinese Optics Letters, 2009, 7 (9): 768, Published Online: Sep. 22, 2009
Validity condition of separating dispersion of PCFs into material dispersion and geometrical dispersion Download: 608次
光子晶体光纤 无量纲化色散 光纤设计 060.2310 Fiber optics 060.5295 Photonic crystal fibers 060.4005 Microstructured fibers
Abstract
When using normalized dispersion method for the dispersion design of photonic crystal fibers (PCFs), it is vital that the group velocity dispersion of PCF can be seen as the sum of geometrical dispersion and material dispersion. However, the error induced by this way of calculation will deteriorate the final results. Taking 5 ps/(km·nm) and 5% as absolute error and relative error limits, respectively, the structure parameter boundaries of PCFs about when separating total dispersion into geometrical and material components is valid are provided for wavelength shorter than 1700 nm. By using these two criteria together, it is adequate to evaluate the simulated dispersion of PCFs when normalized dispersion method is employed.
Wei Wang, Lantian Hou, Zhaolun Liu, Guiyao Zhou. Validity condition of separating dispersion of PCFs into material dispersion and geometrical dispersion[J]. Chinese Optics Letters, 2009, 7(9): 768.