An optical position-tracking system comprises an optical device for
generating an incident light beam and a reference light beam from a light
beam. Moreover, the optical position-tracking system further comprises a
light beam steering device for sweeping the incident light beam through
an angular range to cause a reflection of the incident light beam by a
target, whereas the reflection of the incident light beam is directed to
interfere with the reference light beam to form an interference light
beam. Additionally, the optical position-tracking system enables
determination of a position of the target using an interferometric
technique utilizing an angular value of the incident light beam and the
interference light beam, whereas the angular value depends on the
reflection.