Abstract: A loop interferometer system including a laser, an optical loop, a beam splitter optically coupled to the laser and the optical loop, and a controller configured to control the laser to generate random phase pulses. The optical loop may be configured to receive the random phase pulses from the laser, time delay the random phase pulses, and direct the time delayed random phase pulses to the beam splitter. The beam splitter may be configured to create output optical pulses from an interference pattern between the random phase pulses from the laser and the time delayed random phase pulses from the optical loop.

Abstract: Building a track for a computer game, including: enabling a player of the computer game to generate the track using a controller used to play the computer game, wherein the track is generated from a point of view of the player steering the controller; and laying out the track behind the player steering the controller.