Fiberlenker
Fiberlenker, also known as fiber optic gyroscopes (FOGs), are devices used for measuring angular velocity and orientation. They operate on the principle of the Sagnac effect, which is the phase shift experienced by light traveling in opposite directions around a closed loop. FOGs consist of a coil of optical fiber, typically several kilometers long, wound into a loop. A laser beam is split into two beams that travel in opposite directions around the loop. When the loop is rotated, the difference in the time it takes for the beams to complete the loop causes a phase shift between the two beams. This phase shift is proportional to the angular velocity of the loop. FOGs are widely used in navigation systems, including aircraft, ships, and spacecraft, due to their high accuracy, reliability, and resistance to external disturbances such as magnetic fields. They are also used in various industrial applications, such as robotics and autonomous vehicles, where precise orientation and motion tracking are required.