Publications [#62342] of Nimmi Ramanujam

Papers Published

1. Ramanujam, N. and Lifeng Li and Burke, J.J., A novel design technique for mode control in multilayer waveguides, Trends in Optics and Photonics. Integrated Photonics Research. Vol.45. Technical Digest. Postconference Edition (2000), pp. 165 - 7, Quebec, Que., Canada
   (last updated on 2007/04/13)

   Abstract:
   The phase shift upon reflection from interfaces can be used to control propagation characteristics such as mode profile and chromatic dispersion. We demonstrate this in the case of efficient second harmonic generation in diffused channel waveguides. It has been shown that SHG efficiency can be increased by as much as 37 % and 78 % in KTP and LiTaO₃ waveguides respectively, with specially-designed overlays. This design technique can be extended to compensation of birefringence-induced effects as well

   Keywords:
   birefringence;integrated optics;lithium compounds;optical design techniques;optical dispersion;optical harmonic generation;optical multilayers;optical waveguide theory;potassium compounds;titanium compounds;