Inorganic Glasses for Pulsed-Laser Based Waveguide Engineering for Integrated Optics

The emergence of internet of things (IoT) has led to zetta bit demand in data, requiring the need for multifunctional devices for optical integration on and with silicon. In this respect, both the doped and undoped inorganic glasses are essential for active and passive waveguide applications, respectively, for signal processing, either on silicon or embedded into silicon. The spectroscopic properties of rare-earth-ion (RE-ion) doped inorganic glasses suitable for pulsed-laser deposition (PLD) and inscription onto silicon, silica-on-Si, and polydimethylsiloxane (PDMS) platforms are discussed. The spectroscopic analysis of the deposited films and waveguides are compared for photonic device engineering.