Islam, M. I.; Khatun, M.; Ahmed, K.; Asaduzzaman, S.; Paul, B. K.; Islam, M. S.; Chowdhury, S.; Sen, S.; Miah, M.; Bahar, A. N. Design and Analysis of Single-Mode PCF in Optical Communication Covering E to L Bands With Ultra-High Negative Dispersion. Ukr. J. Phys. 2018, 62, 818.