The Finite Element Method (FEM) has been applied to the analysis of propagation characteristics of MQW planar waveguides. Effective indexes and intensity profiles for both TE and TM modes in MQW waveguides with an arbitrary number of wells are presented. The results show that the variation of r affects the number of modes
effective indexes
birefringence and intensity profiles of the propagating mode in the waveguides. Comparing the FEM with the RMS approach of Ohke et al.
we found that the formulae of RMS were not correct in certain conditions.
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references
G.J, Sonek, J.M.Ballantyne, Y.J.Chen, G.M.Carter, S. W. Brown, E.S. Koteles and J. P.Salerno, IEEE J. Quantum Electron., QE-22(7), 1015(1986).
D.M.Cooper, C.P.Seltzer, M, Aylett, D.J.Elton, M. Harlow, H. Wickes and D. L. Murrell, Electron. Lett., 25(24), 1835(1989).