SYSTEM FOR REDUCING THE SENSITIVITY OF A RING LASER GYRO TO CHANGES IN A MAGNETIC FIELD

摘要

A SYSTEM FOR REDUCING THE SENSITIVITY OF ARING LASER GYRO TO CHANGES IN A MAGNETIC FIELDABSTRACTA ring laser gyro (10) is shown having a mirror(28-34) designed for maximum reflectivity of parallel andperpendicularly polarized light (Rp and Rs) at afrequency (f) slightly greater or less than the frequencyof the laser. In this configuration, the reflection ofthe preferred perpendicularly polarized light (Rs) isreduced but slightly, while the reflection of the lessdesirable parallel polarized light (Rp) is reducedsignificantly.