S. Somekh

TL;DR: In this article, the first demonstration of channel optical waveguide directional couplers was reported, where the closely spaced channel waveguides were fabricated in GaAs by proton implantation and optical coupling was observed at 1.15 μ with complete light transfer out of the initial channel into adjacent channels in lengths of typically 2 mm.

TL;DR: In this article, a GaAs distributed feedback laser was fabricated and pumped optically to obtain a narrow stimulated spectrum around 0.83 μ with threshold pumping power of ∼2 × 105 W/cm2.

TL;DR: Disclosed as discussed by the authors is a process for fabricating small geometry electronic devices, including a variety of integrated optical devices, which includes the steps of holographically exposing a resist masking layer to a plurality of optical interference patterns in order to develop a masking pattern on the surface of a semiconductive body.

TL;DR: Fabrication techniques combining holographic and scanning electron beam lithography with ion beam micromachining have produced planar phase gratings with intervals as small as 2800 A, guiding channel couplers in GaAs, and also wire- grid polarizers for 10.6-,microm radiation.

TL;DR: In this article, a periodic perturbation of the surface of a thin-film waveguide generates space harmonics with new propagation constants which can be phase matched, and an analysis of this proposal shows that it is particularly interesting for a class of thinfilm nonlinear devices using the cubic optically isotropic semiconductors (such as GaAs, GaP, etc.).