Thin Film Lithium Niobate Photonic Integrated Circuits

At a Glance

  • Photonic integrated circuits based on thin film lithium niobate for communication and quantum computing

Technical Background

Photonic integrated circuits based on thin film lithium niobate are of interest for future tele- and datacom links and quantum applications. The broad optical spectrum from 450 - 4500 nm allows for a wide range of sensing applications as well. 

The high-speed phase shifters are based on a traveling wave design, yielding high RF-bandwidth and low Vπ. Complementary building blocks such as thermo-optic phase shifters, on-chip resistors, fiber spot-size converters and more are available for dedicated PICs. The PICs are fabricated at the in-house ISO 9001 certified wafer process line of Fraunhofer HHI.

Building Blocks

  • High-speed phase shifters
  • Thermo-optic phase shifters
  • On-chip resistors
  • Fiber spot-size converters
  • Low-loss waveguides
  • Multi-mode interferometer
  • Directional coupler

Applications

  • Tele- and datacom
  • Sensing
  • Quantum computing