The PSG-001 polarization state generator module generates 6 states of polarization (-45°, 0°, 45°, 90°, RHC & LHC) across the Poincaré Sphere in less than 250 µs, with a repeatability of less than 0.1 degrees. The PSG-001 is controlled with a 6-bit TTL signal either from a microcontroller or a computer.