K. Mertens et al., NEW HIGHLY EFFICIENT POLARIZATION CONVERTERS BASED ON HYBRID SUPERMODES, Journal of lightwave technology, 13(10), 1995, pp. 2087-2092
Mode coupling in strip waveguides can lead to the occurrence of hybrid
supermodes. These supermodes offer the opportunity to develop highly
efficient polarization converters even in isotropic materials as InP o
r GaAs. We present the theoretical background for the occurrence of hy
brid supermodes and offer concrete design proposals for new polarizati
on converters.