Light-Induced Self-Written Optical Waveguide Fabrication by Near Infrared Continuous Wave Laser Light with Microwatt Power

We have successfully demonstrated light-induced self-written (LISW) waveguides at a wavelength of 1070 nm and 1310 nm, respectively. Microwatt level photopolymerization threshold value was obtained at both wavelengths. The results show a promising approach for optical interconnection in silicon photonics.