Thongkerd, A., P. Meejitpaisan, N. Jarucha, N. Intachai, S. Kothan, P. H. Minh, H. Kim, and J. Kaewkhao. “MCCUMBER ANALYSIS AND GAIN CROSS-SECTION OF Er3+ ACTIVATED GADOLINIUM PHOSPHATE OXYFLUORIDE GLASSES FOR BROADBAND COMMUNICATION MATERIALS: McCumber Analysis of Er3+-Activated Oxyfluoride Glasses”. Suranaree Journal of Science and Technology, vol. 32, no. 4, Sept. 2025, pp. 030339(1-6), doi:10.55766/sujst11302.