T. Guettler et al., Anisotropic propagation of light in planar waveguides containing InGaAs-InP quantum wells, APPL PHYS L, 75(13), 1999, pp. 1890-1892
We report on the observation of anisotropy of the propagation index with re
spect to propagation direction in planar waveguides containing InGaAs-InP q
uantum wells. We discuss the relation between this effect and the recently
discovered in-plane polarization anisotropy of the absorption observed for
light propagating along the growth axis. (C) 1999 American Institute of Phy
sics. [S0003-6951(99)05137-2].