Activity: Talks and presentations › Conference presentations
Amorphous titanium dioxide (TiO2) waveguides, thanks to the high linear and nonlinear RIs, low loss, TPA-free bandgap in near infrared and a broad transparency window of TiO2 material, evolve as a promising platform for nonlinear processes including key ones like the supercontinuum generation (SCG).We present the supercontinuum generation in an amorphous TiO2 waveguide. A broadened spectrum of 809nm (from 938nm to 1750nm) measured at -30 dB relative to the peak of the spectrum, is generated by a 100 fs pulse train centered at 1555nm. Meanwhile, nonlinear absorption has not shown with the maximum injected peak power of 2.14 kW. These show the amorphous TiO2 waveguide a quite promising platform for nonlinear applications.