laser gyroscope

A laser gyroscope is a device that detects rotation or changes in orientation using lasers. It works by splitting a laser beam into two beams that travel in opposite directions around a closed loop, such as a coil. When the device rotates, the rotation causes a difference in the travel time or frequency of the two beams due to the Sagnac effect. This difference is measured to determine how the device has rotated. Laser gyroscopes are highly precise and are used in navigation systems, aircraft, and ships to provide accurate orientation data without relying on external signals like GPS.