Sir I want to understand the basics of Coupled Mode Theory, Micro-Ring Resonator and Optical Kerr Effect in better way. Please guide me to find a better text where I will get better understanding of these topics.
On two-wave Coupled Mode Theory (either for directional coupling or distributed Bragg reflection), I would especially recommend the following textbook:
A. Yariv & P. Yeh, "Optical Waves in Crystals", Wiley, New York (1984)