Ic. Goyal et al., PLANAR OPTICAL WAVE-GUIDES WITH ARBITRARY INDEX PROFILE - AN ACCURATEMETHOD OF ANALYSIS, Journal of lightwave technology, 15(11), 1997, pp. 2179-2182
We present here an improvement of the existing modified airy function
(MAF) method, The results of our study show that the improvement gives
extremely accurate propagation constants and also the modal fields fo
r planar waveguides with arbitrary index profile.