A Kumar

Prediction of coupling length in a rectangular-core directional coupler: an accurate analysis.

A Kumar, A N Kaul, A K Ghatak, 1985, Optics letters.

Analysis of rectangular-core dielectric waveguides: an accurate perturbation approach.

A Kumar, A K Ghatak, K Thyagarajan, 1983, Optics letters.

Explanation of errors inherent in the effective-index method for analyzing rectangular-core waveguides.

B Culshaw, A Kumar, D F Clark, 1988, Optics letters.

Exact analysis of the evanescent coupling between two indiffused optical waveguides.

A Kumar, K Thyagarajan, I C Goyal, 1981, Applied optics.