Self-Trapping of Optical Beams and Light-Induced Waveguiding in Photorefractive InP at Telecommunication Wavelengths

We demonstrate self-trapping of a two-dimensional beam at 1.3 microns wavelength in resonantly-enhanced InP. The self-trapped beam also induces a two-dimensional optical waveguide in bulk InP, which guides a second beam at 1.55 micron wavelength.