Efficient PIN phase shifter

The invention relates to a high efficiency PIN phase shifter. Embodiments relate to photonic integrated circuits including carrier-based phase shifters. The carrier-based phase shifter is configured as a PIN phase shifter with a waveguide formed of a strip extending from a slab waveguide. The PIN phase shifter includes a first set of doped regions positioned in the slab waveguide and a second set of doped regions positioned in the strip. Each doped region in the first set of doped regions has a first conductivity type, and each doped region in the second set of doped regions has a second conductivity type different from the first conductivity type. 本公开涉及高效PIN相移器。实施方案涉及包括基于载波的相移器的光子集成电路。该基于载波的相移器被配置为PIN相移器，该PIN相移器带有由从平板波导延伸的条形成的波导。该PIN相移器包括定位在平板波导中的第一组掺杂区域以及定位在该条的第二组掺杂区域。该第一组掺杂区域中的每个掺杂区域具有第一导电类型，并且该第二组掺杂区域中的每个掺杂区域具有与该第一导电类型不同的第二导电类型。