Recently it was shown that soliton waveguides in lithium niobate can be recorded very fast at 405 nm wavelength. We analyze the mode profile of soliton waveguides recorded at 405 nm using different external electric fields and different writing beam polarizations. We discuss the advantages of recording at this wavelength when comparing with the recording process at 532 nm.
We report soliton waveguide creation in lithium niobate crystals with 405nm c.w. radiation from a low-cost blue-violet
laser diode. The high photorefractive sensitivity of lithium niobate at this wavelength allows fast soliton
waveguide writing with low light power (~40nW). The writing process of soliton waveguides at this wavelength is
experimentally studied. We also show the convenient writing of soliton waveguides arrays in the crystal volume and the
good propagation of femtosecond pulses (at 1030 nm) through these waveguides. These waveguides are good candidates
for all-optical integrated photonics.