Abstract

Exploring new spectral bands for optical transmission is one of the solutions to support the increasingly demand of data traffic. The recent development of dedicated hollow-core photonic bandgap fibers [1], associated to the emergence of thulium doped fiber amplifiers [2] has recently focused the attention further in the infrared, and more specifically around 2 µm. Regarding integrated photonics, it becomes therefore interesting to find a suitable platform to operate at 2 µm as well as in the other more conventional spectral bands (going from 800 nm to 1550 nm). Here, we propose titanium dioxide (TiO₂) as a good candidate for integrated waveguide photonics and demonstrate, for the first time, high bit rate transmissions at 1550 nm and 1980 nm.

© 2017 IEEE