1. Delhi Technological University (formerly Delhi College of Engineering, University of Delhi), TIFAC-Centre of Relevance and Excellence in Fiber Optics and Optical Communication, Department of Applied Physics, Bawana Road, Delhi 110042, India
2. Delhi Technological University (formerly Delhi College of Engineering, University of Delhi), TIFAC-Centre of Relevance and Excellence in Fiber Optics and Optical Communication, Department of Applied Physics, Bawana Road, Delhi 110042, IndiabCentral Scient