Design and Theoretical Analysis of Highly Negative Dispersion-Compensating Photonic Crystal Fibers with Multiple Zero-Dispersion Wavelengths

Table 3

Comparison of the PCF designs with the proposed PCF with dispersion at 1.55 µm.

Reference	Nature of air holes	Dispersion (ps/nm·km)	Number of ZDW	Wavelength range (µm)
[6]	All circular air holes	−47.72	—	—
[18]	All circular air holes	−366.5	—	—
[24]	All circular air holes	−2012	—	—
[30]	All circular air holes	−1672	—	—
[21]	All circular air holes	−220.39	3
[27]	All circular air holes	—	2
[38]	—	—	3
[37]	All circular air holes	—	3
[43]	All circular air holes	−2357.54	—
[44]	All circular air holes	−571.68 to −1889	—
[45]	All circular air holes	−1732.10	—	—
[Proposed]	All circular air holes with the insertion of tiny air holes within the first ring	−15089.0	6

The symbol — indicates that the research study did not consider that property is not available.