Sankar Gangopadhyay

ABCD matrix for reflection and refraction of Gaussian light beams at surfaces of hyperboloid of revolution and efficiency computation for laser diode to single-mode fiber coupling by way of a hyperbolic lens on the fiber tip

Sankar Gangopadhyay, Somenath Sarkar · Applied Optics · 1997 · 66 citations

Hyperbolic Lens, Photonics, Engineering +15

Analysis of an upside-down taper lens end from a single-mode step-index fiber

Samir K. Mondal, Sankar Gangopadhyay, Somenath Sarkar · Applied Optics · 1998 · 34 citations

Optical Materials, Engineering, Optic Design +18

A simple but accurate formalism for study of single-mode graded index fiber directional coupler in presence of Kerr nonlinearity

Tilak Mukherjee, Shubhendu Maiti, Angshuman Majumdar et al. · Optik · 2020 · 28 citations

Accurate Formalism, Photonics, Engineering +6

Prediction of Fundamental Modal Field for Graded Index Fiber in the Presence of Kerr Nonlinearity

Subhalaxmi Chakraborty, Chintan Kumar Mandal, Sankar Gangopadhyay · Journal of Optical Communications · 2018 · 25 citations

Photonics, Engineering, Fundamental Modal Field +13

Mismatch considerations in laser diode to single-mode circular core triangular index fiber excitation via upside down tapered hemispherical microlens on the fiber tip

Himadri Mandal, Shubhendu Maiti, Tien‐Lung Chiu et al. · Optik · 2018 · 23 citations

Photonics, Engineering, Optical Properties +8