An unique feature of the thick waveguides is their anomalous dispersion and their high damage threshold that is important in a range of nonlinear optical applications, including integrated quantum communication, supercontinuum generation in waveguides from pulsed lasers, femtosecond pulse generation from CW lasers using soliton generation in microresonators. The high power threshold enables applications such as LIDAR to propagate Watts of power in the waveguides. In addition the transparency window in the visible renders silicon nitride planar photonic circuits attractive for microfluidics and bio-sensing applications.
The thick silicon nitride waveguides not only enable high damage threshold and low loss, but also a compact chip design as bending radii are very small. With a mode fully confined in the waveguide bends as small as a few tens of micorometers are possible without significant loss.
LIGENTEC enables with its silicon nitride technology products in different areas including:
- Integrated quantum communication
- Autonomous driving (LIDAR)
- High performance computing
- Augmented reality
- Supercontinuum generation
- High Q-Filters
- Microwave photonics
- Frequency comb generation