An optical system may include: a polarization beam splitter having: a first end having an input configured to receive multiple optical signals; a second end having a first output and a second output, where the first output may provide first components, having a first polarization of the multiple optical signals, and the second output may provide second components, having a second polarization, of the multiple optical signals; and a first waveguide having a first width and a second waveguide having a second width, where the first waveguide and the second waveguide may each have a length corresponding to a difference between the first width and the second width, where the first waveguide and the second waveguide may be configured to induce a phase shift of the plurality of optical signals based on the first width, the second width, and the length of the first waveguide and the second waveguide.