Two frequency laser gyro state-of-art performance Available to Purchase

A number of recent articles (1) have described a common expression for the fundamental limit of operation of the ring laser gyro. The limiting mechanism is the spontaneous emission of the atoms in the upper state of the lasing transition. Experiments (2) have claimed fundamental limit operation with data obtained at 0.000 deg/hr^½. This paper presents data of 0.00016 deg/hr^½.