ROY'P23 PHD/19 Roy, Kushal Study of some propagation characteristics of nonlinear optical fiber and prediction of coupling optics involving microlens on the fiber tip / Kushal Roy. – Kolkata : Brainware University , 2023 xxvi, 130 []p Rs. . optical . Majumdar, Angshuman , Supervisor . Gangopadhyay, Sankar, Supervisor |