Abstract

Since III-V material have many applications in the field of optoelectronic components, low loss waveguides and low drive voltage modulators are considered to be key components for many future systems. Up to now, many efforts on material elaboration and technology have led to interesting waveguide characteristics (ref [1], [2], [3]) on ridge structures and on buried ones (ref [4]) with best reported propagation losses on the order of 0.4 dB/cm at 1.55 μm wavelength. Here we report on an improvement of those values (0.18 dB/cm) observed on 30.5 mm long straight waveguides and on the observation of linear and quadratic electrooptic modulation performed with those buried structures.

© 1989 Optical Society of America