Optical Binary Switched Delay Line based on Low Loss Multimode Waveguide

We demonstrate low loss, 7-bit, switched delay line, with 6.4 ns measured delay span. The geometrically-optimized delay lines achieve 3.3 dB/m (0.25 dB/ns) measured loss. The design is fabricated in a commercial silicon photonics process. © 2022 The Author(s)