S. Khalfallah et al., HIGHLY BIREFRINGENT AND MONOMODE GAALAS-GAAS PLANAR OPTICAL WAVE-GUIDE, IEEE photonics technology letters, 8(2), 1996, pp. 233-235
A novel optical waveguide exhibiting a layered core region is proposed
. Owing to the original design of the core stack and form birefringenc
e in the multilayer, a waveguide supporting both TE and TM lowest-orde
r modes with high confinement has been obtained. It has been designed,
fabricated, and characterized and presents a modal birefringence grea
ter than 0.01, which is in good agreement with the calculated values.