@ARTICLE{a2018,
     Title={A Novel flatted gain C-Band Cascaded Hybrid optical Amplifier RAMAN and Thulium Doped Fluoride fiber Amplifier for Super Dense Wavelength Division Multiplexing System},
     Author={Chakresh Kumar, Rakesh Goyal},
     Journal={Optica Applicata},
     Volume={148},
     Number={2},
     Pages={173-177},
     Publisher={},
     Year={2018}
}